Patent & Trademark Office/PTO Archives

Patent & Trademark Office/PTO

New Guidance Addresses Use of AI Systems, Tools in Practice Before the PTO

by Peter Brunovskis, PhD | Apr 18, 2024 | Technology

The US Patent & Trademark Office (PTO) issued new guidance on the use of artificial intelligence (AI) tools in practice before the PTO. The new guidance is designed to promote responsible use of AI tools and provide suggestions for protecting practitioners and clients from misuse or harm resulting from their use. This guidance comes on the heels of a recent memorandum to both the trademark and patent trial and appeal boards concerning the applicability of existing regulations addressing potential misuse of AI and recent guidance addressing the use of AI in the context of inventorship.

Patent practitioners are increasingly using AI-based systems and tools to research prior art, automate the patent application review process, assist with claim charting, document reviews and gain insight into examiner behavior. The PTO’s support for AI use is reflected in patent examiners’ utilization of several different AI-enabled tools for conducting prior art searches. However, because AI tools are not perfect, patent practitioners are potentially vulnerable to misuse or misconduct. Therefore, the PTO’s new guidance discusses the legal and ethical implications of AI use in the patent system and provides guidelines for mitigating the risks presented by AI tools.

The guidance discusses the PTO’s existing rules and policies for consideration when applying AI tools, including duty of candor, signature requirement and corresponding certifications, confidentiality of information, foreign filing licenses and export regulations, electronic systems’ policies and duties owed to clients. The guidance also discusses the applicability of these rules and policies with respect to the use of AI tools in the context of document drafting, submissions, and correspondence with the PTO; filing documents with the PTO; accessing PTO IT systems; confidentiality and national security; and fraud and intentional misconduct.

AI tools have been developed for the intellectual property industry to facilitate drafting technical specifications, generating responses to PTO office actions, writing and responding to briefs, and drafting patent claims. While the use of these tools is not prohibited, nor is there any obligation to disclose their use unless specifically requested, the guidance emphasizes the need for patent practitioners to carefully review any AI outputs generated before signing off on any documents or statements made to the PTO. For example, when using AI tools, practitioners should make a reasonable inquiry to confirm that all facts presented have evidentiary support, that all citations to case law and other references are accurately presented, and that all arguments are legally warranted. Any errors or omissions generated by AI in the document must be corrected. Likewise, trademark and Board submissions generated or assisted by AI must be reviewed to ensure that all facts and statements are accurate and have evidentiary support.

While AI tools can be used to assist or automate the preparation and filing of documents with the PTO, care must be taken to ensure that no PTO rules or policies are violated and that documents are reviewed and signed by a person, not an AI tool or non-natural person. AI [...]

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PTO Stands by Patent Fee Increases

by Amol Parikh | Apr 11, 2024 | Patents

The US Patent & Trademark Office (PTO) issued a notice of rulemaking announcing proposed patent fee increases beginning next year. 89 Fed. Reg. 23226 (April 3, 2024). The proposed increases are generally consistent with the PTO’s May 2023 proposal.

The Notice states that the PTO needs the proposed fee adjustments to provide sufficient revenue to recover costs of patent operations in future years. To that end, the PTO proposes to set or adjust 455 patent fees, including 73 new fees. Complete information about the fee adjustments, including the Notice, is available on the PTO’s website.

The fee increases include higher amounts for routine fees necessary to obtain a patent, including filing, search, examination and issue fees. Excess claim fees will also increase to $200 for each claim over 20 and $600 for each independent claim over three. There will also be an escalating fee structure for terminal disclaimers, ranging from $200 if filed before the first office action to $1,400 if filed after the PTO grants the patent. The fees for filing requests for continued examination (RCE) will now use a tiered fee structure and will increase to $1,500 for the first RCE, $2,500 for the second RCE and $3,600 for the third RCE. Patent Trial & Appeal Board fees will increase by about 25%, and a new fee of $400 will be required for a Request for Director Review of a Board decision.

Written comments on proposed patent fees must be submitted by June 3, 2024, through the Federal eRulemaking Portal.

PTO Proposes Trademark Application Filing Changes, Fee Adjustments

by Peter Brunovskis, PhD | Apr 4, 2024 | Trademarks

On March 26, 2024, the US Patent & Trademark Office (PTO) issued a notice of proposed rulemaking in the Federal Register concerning changes to trademark application filings and fee adjustments in trademark cases for 2025. The PTO solicits written comments from the public on the proposed rule changes on or before May 28, 2024. The proposed rules seek to generate sufficient multiyear revenue for trademark operations in future years based on projections described in the notice.

The changes are recommended to support the PTO’s strategic goals and objectives, including optimizing trademark application pendency through the promotion of efficient operations and filing behaviors, issuing accurate and reliable trademark registrations, and encouraging access to the trademark system for stakeholders.

The proposal seeks to incentivize more complete and timely filings, improve prosecution, adjust 31 trademark fees and impose 12 new fees while discontinuing six existing fees. The proposal also seeks to consolidate the present Trademark Electronic Application System (TEAS) filing options (i.e., TEAS Plus and TEAS standard) into a single electronic filing option. The single option would include most of the same requirements as TEAS Plus, while eliminating those under TEAS Standard. The new filing framework would discontinue the previous filing fees and fees for failing to meet the requirements of a TEAS Plus application. Similar to TEAS Plus, however, applicants complying with the proposed requirements in their initial filing would pay the lowest fees.

The proposed fee adjustments would:

Set the fee for a base application at $350 using the ID Master List (which is $100 more than the current fee for a TEAS Plus application)
Discontinue current fees for filing an application under the Madrid Protocol
Require surcharge fees between $100 and $200 for applications that are noncompliant with the base filing requirements
Require an additional $200 fee per class for the identification of goods and services entered in the free-form text field to incentivize use of the Trademark ID Manual for such identifications instead
Require an additional $200 fee for each additional group of 1,000 characters in the free-form text field; identifications directly from the ID Manual would not incur these fees
Increase fees by $50 for filing amendments to allege use (AAU) and statements of use (SOU), with fees being discounted $100 for electronic filings
Increase post-registration maintenance fees from $50 to $75
Increase the letter of protest fee from $50 to $150.

Regarding the proposed fee adjustments, the notice describes changes to 37 CFR 2.6 and 7.6. The notice further describes changes to 37 CFR 2.22 and 2.71 with respect to base application fees and amendments to correct informalities, respectively.

For further details, see the Federal Register notice.

PTO to Patent Examiners: Make Interpretation of Means-Plus-Function Claims Clear in the Record

by Peter Brunovskis, PhD | Mar 28, 2024 | Patents

On March 18, 2024, the US Patent & Trademark Office (PTO) issued a memorandum to patent examiners addressing means-plus-function and step-plus-function claim limitations and how to clearly articulate, in the prosecution record, the PTO’s interpretation of such claim limitations. The goal of the memorandum is to ensure consistency in connection with the examination of such limitations, provide both the applicant and the public with notice regarding the claim interpretation used by the patent examiner, and provide the applicant an opportunity to advance a different claim interpretation early in the prosecution.

As stated in 35 U.S.C. §112(f), “[a]n element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof.” The memorandum does not suggest any changes in interpretation of the statute.

One aspect of the memorandum is to remind examiners of the resources and guidance available when examining means-plus-function and step-plus-function claim limitations, specifically MPEP §§ 2181-2187 and refresh training. In accordance with the guidance, the primary steps when examining such claim elements include:

Determining whether a claim limitation invokes § 112(f)
Ensuring the record is clear with respect to invoking § 112(f)
Evaluating the description necessary to support a § 112(f) claim limitation under §§ 112(a) and (b).

To determine whether a claim limitation invokes §112(f), the guidance instructs examiners to employ the three-prong analysis set forth in MPEP § 2181, subsection I. Using this analysis, recitation of the terms “means” or “step” in association with functional language, rather than structure, material or acts for performing that function, should be interpreted as claim limitations invoking § 112(f). However, where these terms are accompanied by structure, materials or acts for performing the function, § 112(f) is not invoked. On the other hand, a limitation reciting functional language along with a generic placeholder term instead of “means,” which fails to recite sufficiently definite structure for performing the function, would nonetheless invoke § 112(f), according to a proper analysis. Examples of such generic placeholders include “mechanism for,” “module for,” “device for,” “unit for,” “component for,” “element for,” “member for,” “apparatus for,” “machine for” and “system for.”

An important caveat in the memorandum states that “[e]stablishing the interpretation of § 112(f) limitations in writing during prosecution is critical in supporting the agency goal of establishing a clear prosecution record.” The guidance advises examiners that form paragraphs are available in support of meeting this objective, which serve to inform “the applicant, the public, and the courts . . . as to the claim construction the examiner used during prosecution. This further informs the applicant, the public, and the courts (and the PTO for any post-grant review procedures) as to how the examiner searched and applied prior art based on the examiner’s interpretation of the claim.”

The memorandum further emphasizes the need to [...]

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New PTAB Claim Construction? Give the Parties Review Opportunity

by Benjamin Ediger, Ph.D. | Mar 28, 2024 | Patents

The US Patent & Trademark Office (PTO) Director vacated Final Written Decisions issued by the Patent Trial & Appeal Board that presented a sua sponte construction of a claim term in dispute, holding that the parties were not provided adequate notice of the Board’s new construction. Assa Abloy AB v. CPC Patent Technologies Pty., Ltd., IPR2022-01006, -01045, -01089 (PTAB Decision Review Mar. 15, 2024) (Vidal, PTO Dir.)

The Board issued Final Written Decisions in three inter partes reviews (IPRs), holding that the petitioner failed to demonstrate that any of the challenged claims were unpatentable. The petitioner requested Director Review, raising three issues concerning the Final Written Decisions’ treatment of the claim term “biometric signal”:

The Board’s construction newly added a limitation that neither the petitioner nor the patent owner proposed
The Board’s construction was erroneous
The Board inconsistently addressed this claim limitation among the IPRs at issue.

The Director decided that review was appropriate.

The Director explained that in view of the petitioner’s and patent owner’s divergent post-institution positions regarding this limitation, the Board had authority to construe “biometric signal” even though its institution decisions indicated that the Board would give this claim term its plain and ordinary meaning. The petitioner argued that the term meant “the input and output of the biometric sensor,” and the patent owner argued that the term meant a “physical attribute of the user” (i.e., a fingerprint, facial pattern, iris, retina or voice). The Board held that it meant “a physical or behavioral biometric attribute that provides secure access to a controlled item.”

The Director vacated and remanded the Final Written Decisions, explaining that the Board failed to provide the petitioner and the patent owner reasonable notice of its new construction or the opportunity to present arguments concerning it, as required under the Administrative Procedure Act (APA). The Director noted that neither party requested the Board’s inclusion of a construction that required an attribute of the claimed signal to “provide[] secure access to a controlled item” and concluded this was the sort of “difficult to imagine” sua sponte construction that the US Court of Appeals for the Federal Circuit held (in its 2021 decision in Qualcomm v. Intel) lacked sufficient notice if appearing for the first time in a Final Written Decision.

The Director instructed that on remand the Board should authorize the petitioner to file a supplemental briefing that addresses the Board’s construction and its application to the asserted prior art and authorize the patent owner to respond to the petitioner’s supplemental briefing.

The Director also noted that the patent owner’s proposed claim construction in the IPRs was similar to the construction that the Board adopted in its institution decisions in other IPRs challenging two of the patents at issue. In recognition of this situation, the Director also invited the petitioner, in its supplemental briefing, to address the perceived inconsistencies in these claim constructions.

District Court Subpoena Power Plays “Supporting Role” to PTO Rules

by Eleanor B. Atkins | Mar 21, 2024 | Trademarks

Addressing the subpoena power of district courts to compel evidence for use in US Patent & Trademark Office (PTO) proceedings, the US Court of Appeals for the Fourth Circuit upheld a district court’s decision (albeit on alternative grounds), holding that district courts’ authority to issue subpoenas in support of PTO proceedings is limited by the PTO Rules of Procedure. Xactware Solutions, Inc. v. Buildxact Software Ltd., Case No. 22-1871 (4th Cir. March 13, 2024) (Gregory, Harris, Floyd, JJ.)

Buildxact, an Australian company, filed a trademark application at the PTO for BUILDXACT. Xactware opposed the BUILDXACT application at the Trademark Trial & Appeal Board and requested to depose three of Buildxact’s officers via video. When Buildxact objected indicating it would only allow written depositions (citing the PTO rules, which state that foreign depositions must be in writing unless the parties stipulate otherwise or the deposing party shows good cause), Xactware subpoenaed Buildxact through service on Buildxact’s default agent – the PTO Director – for an in-person deposition of a Buildxact corporate representative.

Buildxact filed a motion in the district court to quash the subpoena. The district court magistrate judge granted Buildxact’s motion, finding that Buildxact, which has no office, employees, or regular business in or near Virginia, did not have sufficient contacts to qualify as “being within” the district. Xactware moved for a review of the order, but the district court agreed with the magistrate judge’s ruling. Xactware appealed.

Pursuant to 35 U.S.C. § 23, the PTO may establish its own rules for depositions in cases before the Board. Additionally, 35 U.S.C. § 24 grants the “clerk of any United States court for the district wherein testimony is to be taken for use in any contested case in the Patent and Trademark Office” the power to “issue a subpoena for any witness residing or being within such district, commanding him to appear and testify before an officer in such district authorized to take depositions and affidavits.”

Xactware argued that Buildxact is “within” the district because it has an agent designated to receive service of process there (i.e., the PTO Director). The PTO argued that even if Buildxact were “within” the district, the subpoena must still be quashed as the deposition was improper under the PTO rules. The Fourth Circuit agreed, noting that it consequently need not address whether Buildxact was “within” the district or not.

The Fourth Circuit held that the district court lacked the authority to issue a subpoena compelling Buildxact’s deposition because the deposition being sought was prohibited by PTO rules and would not be admissible in any PTO proceeding. Looking at the legislative history, the Fourth Circuit noted that the district court’s subpoena power under § 24 is only available to the extent the courts are empowered to aid the PTO: “Section 24 assigns a supportive role to the district courts to ensure the smooth functioning of the [PTO] procedures.” Moreover, the explicit language of § 24 requires that a district court can only subpoena testimony “for use [...]

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Be Cool: Don’t Construe the Construction

by Keval Amin | Mar 21, 2024 | Patents

The US Court of Appeals for the Federal Circuit vacated and remanded a Patent Trial & Appeal Board decision after concluding that the patent owner’s proposed construction would require the parties to construe the construction. CoolIT Systems, Inc. v. Katherine Vidal, Director of the United States Patent & Trademark Office, Case No. 22-1221 (Fed. Cir. March 7, 2024) (Lourie, Bryson, Stark, JJ.) (nonprecedential).

CoolIT Systems owns a patent directed to a system for fluid heat transfer to cool electronic devices. The patent focuses on a heat exchange system comprising various components including a heat sink, a housing member and a compliant member. The patent claims priority from two provisional applications. Asetek Danmark petitioned for inter partes review (IPR) of the patent based on anticipation and obviousness. During the IPR proceeding, the parties disputed the meaning of the term “matingly engaged,” a term introduced in the later provisional application. To preserve validity, CoolIT argued that the term should be construed narrowly to mean “mechanically joined or fitted together to interlock.” Asetek sought a broader construction of “joined or fitted together to make contact,” which would encompass all methods of joining two surfaces.

The Board found both interpretations extreme and partially construed the term as being satisfied when at least a portion of the compliant member fits within the recessed region of the housing member. Despite agreement on the term “mate” to mean “join or fit together,” there was disagreement on the term “engage.” However, the Board did not determine whether “matingly engaged” could encompass forms of engagement beyond fitting.

The Board found that the cited prior art suggested a compliant member fitting the housing, thus rendering the claims obvious. CoolIT appealed. The US Patent & Trademark Office (PTO) intervened after Asetek withdrew from the appeal based on settlement.

CoolIT argued that the Board’s interpretation was flawed, and that the prior art did not meet the requirements of the “matingly engaged” limitation irrespective of the interpretation adopted. CoolIT contended that its proposed construction aligned with the invention’s purpose and properly distinguished between the 2007 and 2011 provisional applications. CoolIT also argued that the compliant member must partition features to control coolant flow, necessitating a specific type of joining or fitting.

In response, the PTO argued that CoolIT’s proposed construction read limitations from the specification into the claim. The PTO contended that neither the claims nor the specification required “interlock” and disputed CoolIT’s interpretation of the 2007 provisional application. The PTO did not propose an alternative construction, however.

The Federal Circuit concluded that “matingly engaged” should properly be construed as “mechanically joined or fitted together,” as that construction accurately reflected the term’s meaning and aligned with arguments presented by both parties. The Court rejected CoolIT’s proposal to add the word “interlock” because it would cause more confusion than clarity, noting that even CoolIT and the PTO still disagreed over what the term “interlock” meant and thus adding that term to the construction would provide little guidance.

The Federal Circuit found that the Board [...]

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PTO Seeks Permanent Rules Regarding Motion to Amend Practice Before Board

by Peter Brunovskis, PhD | Mar 14, 2024 | America Invents Act

On March 4, 2024, the US Patent & Trademark Office published a Notice of Proposed Rulemaking seeking to revise its Motion to Amend (MTA) pilot program practice in connection with certain America Invents Act (AIA) proceedings. 89 Fed. Reg. 15531 (Mar. 4, 2024). The PTO set a May 3, 2024, deadline for stakeholders to submit written comments in response to the proposed rules.

The MTA pilot program has evolved since its inception nearly five years ago and has been extended to September 16, 2024. The proposal seeks to make permanent certain provisions of the pilot program in response to the PTO’s May 2023 request for comments. The rules would apply to the existing consolidated set of rules relating to trial practice for inter partes review (IPR), post-grant review (PGR) and derivation proceedings in trial proceedings under the AIA.

Under the existing MTA pilot program, patent claims challenged during an AIA trial proceeding provide the patent owner with two options when proposing substitute claims in response to a petitioner’s opposition. The first option gives the patent owner the ability to file an MTA so that the Patent Trial & Appeal Board can issue preliminary non-binding guidance regarding the likelihood of an invalidation decision. The PTO proposes to revise its rules of practice to provide for the issuance of preliminary guidance in response to an MTA and to provide a patent owner with the option of filing one additional revised MTA.

The Board’s preliminary guidance typically would come in the form of a short paper issued after a petitioner files its opposition to the MTA and typically would provide the Board’s preliminary views on the MTA, specifically whether the MTA meets the statutory and regulatory requirements for an MTA, whether the parties have met their respective burdens of proof and whether the substitute claims are likely to be found unpatentable. However, the preliminary guidance would not be binding on the Board.

The proposed provisions would also provide the Board with greater authority to raise new grounds of unpatentability based on a preponderance of evidence standard. The new grounds of unpatentability could rely on the entirety of the record, including all prior art of record. The guidance would be accompanied by citations to the evidence in support of these new grounds. Further, where no opposition is filed or other circumstances constitute a lack of opposition, the prior art of record may further include references obtained from the PTO (i.e., examiners) in response to a request from the Board.

The proposed provisions would allow a patent owner to file a revised MTA after receiving a petitioner’s opposition to the original MTA or after receiving the Board’s preliminary guidance. Under the current pilot program, a revised MTA must be preauthorized for “good cause.” Under the revised provisions, the patent owner would be able to file a revised MTA without preauthorization. A revised MTA would replace the original MTA and must include new proposed substitute claims in place of the originally proposed claims. [...]

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New PTO Guidance: Use KSR Flexible Approach to Obviousness

by Peter Brunovskis, PhD | Mar 7, 2024 | Uncategorized

On February 27, 2024, the US Patent & Trademark Office (PTO) published updated guidance for examiners on how to make a proper determination of obviousness. The guidance expands upon and reinforces the legal framework for obviousness determinations discussed by the Supreme Court in KSR Int’l. v. Teleflex (2007) and Graham v. John Deere Co. (1966) through the lens of post-KSR precedential Federal Circuit cases. The guidance does not have the force and effect of law and is not intended by the PTO to convey any new practice or procedure.

Drawing from more than 30 Federal Circuit cases, the guidance addresses several themes. An overriding theme concerns the implementation of a flexible approach to obviousness and the need for a reasoned explanation when concluding that a claimed invention would have been obvious. In its discussion, the PTO characterizes the flexibility expressed by the KSR court and reiterated by subsequent Federal Circuit cases as mandating a proper understanding of the scope of the prior art and providing appropriate reasons to modify the prior art.

Regarding the scope and content of the prior art, the guidance draws attention to understanding the prior art and all that it may reasonably suggest to a person of ordinary skill in the art (POSITA) who would naturally apply common sense and glean suggestions from the art – even where such suggestions are not explicitly stated. Thus, the obviousness inquiry need not seek out precise teachings regarding a solution to a technological problem but can take account of the inferences, creative steps and common knowledge that a POSITA would employ. In one precedential example, the Federal Circuit held that a POSITA would have combined certain prior art elements based on common knowledge of an industry’s concern for rider stability when using water recreational devices. (Zup v. Nash Mfg. (2018).) The guidance also affirms the need for an evaluation of analogous prior art, which must be evaluated using a flexible approach when considering the “same field of endeavor” and “reasonably pertinent” tests in combination with evidence concerning the knowledge and perspective of a POSITA.

According to the guidance, a flexible approach to obviousness should provide a reasoned explanation with evidentiary support for modifying the prior art. To facilitate compact prosecution, the examiner should clearly articulate this explanation early in the prosecution. The PTO also cautions that wholesale use of “common sense” as a rationale is no substitute for reasoned analysis and evidentiary support. There should be an explanation of why common sense would have compelled a finding of obviousness, especially where limitations are not expressly disclosed in the prior art.

The guidance further emphasizes that decision-makers are not free to ignore relevant evidence before them, including Graham’s secondary considerations or other objective indicia of obviousness, to establish prima facie obviousness. At the same time, conclusory opinions by an expert in a declaration or attorney argument alone should not be accorded weight in the absence of factual support. The guidance notes that in keeping with the flexible approach to obviousness [...]

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Not Admitted to PTO Bar? No Problem.

by Peter Brunovskis, PhD | Feb 29, 2024 | Uncategorized

On February 21, 2024, the US Patent & Trademark Office (PTO) issued a Notice of Proposed Rulemaking that would give parties the option to designate a non-registered practitioner as lead counsel in proceedings before the Patent Trial & Appeal Board. 89 Fed. Reg. 13017 (Feb. 21, 2024) (to be codified at 37 C.F.R. pt. 42).

37 CFR 42.10(a) currently requires each party to designate a lead counsel and at least one back-up counsel. The lead counsel must be a registered practitioner. Non-registered practitioners can serve as back-up counsel pro hac vice, but only upon a showing that they are an experienced litigating lawyer serving as back-up counsel and that they possess significant familiarity with the subject matter at issue. Permission for back-up status requires grant of a pro hac vice motion filed by counsel presenting specific statements of fact showing good cause for admission, as well as an affidavit or declaration by counsel attesting to good standing before the courts, familiarity with the PTO’s Patent Trial Practice Guide and the Board’s Rules of Practice for Trial set forth in part 42 of 37 C.F.R., and familiarity with the subject matter at issue.

The proposed changes to 37 C.F.R. 42.10 would:

Permit non-registered practitioners to serve as lead counsel for a party in Board proceedings as long as at least one other counsel designated to appear on behalf of the party is a registered practitioner.
Permit parties to proceed without back-up counsel upon a showing of good cause. A party may show good cause by demonstrating that it lacks the financial resources to retain both lead and back-up counsel.
Create a new streamlined procedure for pro hac vice recognition of Board-recognized practitioners. This procedure applies to non-registered practitioners who have previously been admitted pro hac vice in a different Board proceeding and have not been subsequently denied pro hac vice recognition in a different Board proceeding.
Clarify that those recognized pro hac vice have a duty to inform the Board if the information presented in a request for pro hac vice recognition is no longer accurate or complete.

The PTO seeks public comments on the proposed rulemaking by May 21, 2024, through the Federal eRulemaking Portal. Enter docket number PTO-P-2023-00587 on the homepage and select “search.”

For further details, click here.

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