Category Archives: claim challenges

A Split Panel of the Federal Circuit Reverses PTAB Finding of Unpatentability Without Remand in DSS v. Apple

In DSS Technology Management v. Apple Inc., a split panel of the Federal Circuit reversed a finding of patentability by the Patent Trial and Appeal Board (PTAB or the Board), but did so without remanding the case back to the … Continue reading

Posted in claim challenges, Federal Circuit, Federal Circuit Review of PTAB Proceedings, inter partes review, IPR, prior art, Reversal With No Remand | Tagged , , , , , , , , , , , | Leave a comment

Complex Claim Construction Issues in Knowles Electronics v. Cirrus Logic

A recent Federal Circuit case demonstrates the complexity of resolving difficult claim construction issues in multiple agency and court proceedings.  In Knowles Electronics v. Cirrus Logic the Federal Circuit declined to apply its own prior claim interpretation of the same term of … Continue reading

Posted in America Invents Act, BRI v. Phillips Construction Issues, Broadest Reasonable Interpretation standard, claim challenges, Claim Construction, Claim Preclusion, Federal Circuit Review of PTAB Proceedings, inter partes reexamination, Issue Preclusion, ITC, prior art, PTAB, reexamination generally | Tagged , , , , , , , , , , , , , | Leave a comment

Federal Circuit’s Aqua Products Decision Clarifies Burden on IPR Petitioner to Challenge Amended Claims

On October 4, 2017, the Federal Circuit issued a lengthy decision in Aqua Products v. Matal, spanning five opinions and 148 pages, which addressed the proper allocation of the burden of proof when amended claims are offered during inter partes review proceedings (“IPRs”).  Aqua Prods. v. … Continue reading

Posted in Adjudicative instead of examinatorial, Broadest Reasonable Interpretation standard, claim challenges, estoppel from administrative proceeding, Federal Circuit Review of PTAB Proceedings, Motion to Amend, preponderance of evidence, reexamination generally, Settlements in Post-Grant Proceedings, Termination of Post-Grant Proceedings | Tagged , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

Shire’s Granted Motion to Amend Offers Additional Insight Into PTAB Amendment Practice

When a patent undergoes review at the Patent Trial and Appeal Board (“PTAB”), the Patent Owner has an opportunity to file a motion to amend claims so that a substitute claim can be proposed for each claim sought to be amended. … Continue reading

Posted in claim challenges, inter partes review, Motion to Amend, prior art, PTAB, Uncategorized | Tagged , , , , , , , , , , , , | Leave a comment

PTAB Narrows Its Preliminary Claim Interpretation To Uphold Cellular Patent

In July, 2014 Ericsson Inc. and Telefonaktiebolaget LM Ericsson (“Ericsson”) petitioned for inter partes review of claims 1, 2, 8-12 and 18-22 of U.S. Patent No. 7,787,431 owned by Intellectual Ventures II  LLC (“IV”).  In February, 2015, the Board instituted … Continue reading

Posted in Broadest Reasonable Interpretation standard, claim challenges, Claim Construction, Expert Witnesses, inter partes review, prior art, PTAB, Uncategorized | Tagged , , , , , , , , | Leave a comment

Are Patent-Friendly PTAB Decisions On the Rise?

Patent litigation changed with passage of the America Invents Act. Overnight the PTAB became a new venue for challenging patent claims using IPRs, CBMs and PGRs. The initial reaction by the patent bar to the PTAB’s “take charge” approach to … Continue reading

Posted in America Invents Act, claim challenges, Claim Construction, Damages, Future of PTAB Trial Practice, inter partes review, Litigation, Post Grant Review, preponderance of evidence, prior art, PTAB, PTAB Patent Trials, Uncategorized | Tagged , , , , , , , , , , , , , , | Leave a comment

Patent Due Diligence and Evaluation After the AIA

Many factors must be considered for due diligence and valuation of a patent portfolio. The patent owner’s desire to have broad claims that capture a large number of infringements must be tempered against its need for claims that will not … Continue reading

Posted in America Invents Act, claim challenges, covered business methods, inter partes review, Litigation, Patent Portfolio Management, Patent Reform, Post Grant Review, Prosecution Guidelines, PTAB, PTAB Patent Trials | Tagged , , , , , , , , , , , , , , , , , , | Leave a comment

4 Tips to Make Your Patent Portfolio AIA-Ready

The America Invents Act (AIA) has changed the way that patents are enforced. In traditional patent litigation, a patent was drafted to perform in district court. After the AIA, when patents are asserted, they are first challenged in administrative proceedings … Continue reading

Posted in America Invents Act, claim challenges, covered business methods, inter partes review, Litigation, Post Grant Review, PTAB, PTAB Patent Trials | Tagged , , , , , , , , , , , , , , , , , | Leave a comment

PTAB Relies on the Federal Circuit’s Recent § 101 Decision to Deny CBM Institution

On May 12, 2016, the Federal Circuit issued a decision on 101 patent eligibility  that overturned a summary judgment finding of § 101 invalidity for software used for databases.  Enfish, LLC v. Microsoft Corp., No. 2015-1244, 2016 WL 2756266 (Fed. Cir. … Continue reading

Posted in claim challenges, covered business methods, Federal Circuit, patent-eligible subject matter, Post Grant Review, PTAB, PTAB Patent Trials | Tagged , , , , , , , , , , , , , | Leave a comment

Federal Circuit Employs Phillips Claim Construction to Measure Claims Amended in Reexamination for Possible Intervening Rights

When patent owners sue an accused infringer for patent infringement, one way for the accused infringer to avoid liability is to show noninfringement of the patent claims.  But if the claims are extremely broad, the accused infringer may find it difficult … Continue reading

Posted in Broadest Reasonable Interpretation, claim challenges, Claim Construction, clear and convincing evidence, covered business methods, Damages, Ex Parte Prosecution, Federal Circuit, inter partes review, intervening rights, Litigation, past damages, Phillips claim construction, Post Grant Review, preponderance of evidence, prior art, reexamination generally | Tagged , , , , , , , , , , , , , , , , , | Leave a comment