News & Analysis as of

Prior Art Printed Publications Estoppel

Sterne, Kessler, Goldstein & Fox P.L.L.C.

[Webinar] Developments in IPR Estoppel - December 5th, 1:00 pm - 2:00 pm EST

Director Jason A. Fitzsimmons and Counsel Richard A. Crudo will present the “Developments in IPR Estoppel” webinar on Tuesday, December 5, 2023, at 1:00 PM ET. The possibility of being estopped from asserting prior art in...more

Akin Gump Strauss Hauer & Feld LLP

District of Delaware: IPR Estoppel Does Not Apply to Prior-Art Products

A judge in the District of Delaware has ruled that an estoppel under 35 U.S.C. § 315(e)(2) does not apply to prior-art products, even if those products are “cumulative” of prior-art patents or printed publications that were...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

2021 PTAB Year in Review: Analysis & Trends

[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions

[co-author: Jamie Dohopolski] Last year, the continued global COVID-19 pandemic forced American courts to largely continue the procedures set in place in 2020. The U.S. Court of Appeals for the Federal Circuit was no...more

Akin Gump Strauss Hauer & Feld LLP

Patent Owner’s Unpatentability Concession in IPR Insufficient to Trigger Estoppel of System Prior Art in District Court

The Eastern District of Texas has rejected a plaintiff’s argument that if a patent owner concedes in an inter partes review (IPR) that a prior art reference discloses all elements of a patent claim, the reference necessarily...more

Knobbe Martens

Federal Circuit Review - September 2020

Knobbe Martens on

Joining an IPR Triggers IPR Estoppel Only for Instituted Grounds - In Network-1 Technologies, Inc. v. Hewlett-Packard Company, Hewlett Packard Enterprise Company , Appeal No. 18-2338, the Federal Circuit held that a party...more

Knobbe Martens

Joining an IPR Triggers IPR Estoppel Only for Instituted Grounds

Knobbe Martens on

NETWORK-1 TECHNOLOGIES, INC. v. HEWLETT-PACKARD COMPANY, HEWLETT PACKARD ENTERPRISE COMPANY - Before Prost, Newman, and Bryson. Appeal from the United States District Court for the Eastern District of Texas. Summary: A...more

Goodwin

Issue Twenty-Six: PTAB Trial Tracker

Goodwin on

The availability of post-grant proceedings at the Patent Trial and Appeal Board (PTAB) has changed the face of patent litigation. This monthly digest is designed to keep you up-to-date by highlighting interesting PTAB,...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

2019 PTAB Year in Review: Analysis & Trends: IPR Estoppel Questions Answered and Remaining

When Congress created inter partes review (“IPR”) proceedings in the Leahy-Smith America Invents Act, it included an estoppel provision to avoid duplicative validity challenges against the same patent claims.1 As set forth in...more

Goodwin

Issue Twenty-Three: PTAB Trial Tracker

Goodwin on

The availability of post-grant proceedings at the Patent Trial and Appeal Board (PTAB) has changed the face of patent litigation. This monthly digest is designed to keep you up-to-date by highlighting interesting PTAB,...more

Akin Gump Strauss Hauer & Feld LLP

Far-Reaching Effect of IPR Estoppel Dooms Invalidity Defense Based on Prior Art Product

Chief Judge Stark granted a patent owner’s motion for summary judgment of inter partes review (IPR) estoppel, holding that obviousness defenses based on a prior art product could not be asserted because a prior art...more

Akin Gump Strauss Hauer & Feld LLP

Calling a Printed Publication a “System” is Not Enough to Avoid IPR Estoppel

A Central District of California judge recently granted summary judgment of no obviousness based on inter partes review (IPR) estoppel because the only prior art references used to challenge patent validity could have been...more

Foley & Lardner LLP

District Court Sheds Light on Scope of IPR Estoppel

Foley & Lardner LLP on

One area of estoppel arising from an unsuccessful AIA petition that remains poorly understood relates to prior art that is described both in a printed publication or patent and also was in use by others, such as to create...more

Akin Gump Strauss Hauer & Feld LLP

No Estoppel in District Court on Prior Art that Differs Substantively—and in a Manner Germane to Invalidity—from that Asserted in...

A Central District of California judge has clarified his prior ruling on summary judgment that estoppel under 35 U.S.C. § 315(e)(2) that applies to certain obviousness invalidity grounds raised by Defendants. In the prior...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

2019 Report: Federal Circuit Appeals from the PTAB - Summaries of Key 2018 Decisions

In 2018, the U.S. Court of Appeals for the Federal Circuit docketed close to 600 appeals from the U.S. Patent and Trademark Office (USPTO). That is the second highest number since starting to hear post-American Invents Act...more

Akin Gump Strauss Hauer & Feld LLP

District Court Adopts Narrow Reading of Shaw and Finds that IPR Estoppel Applies to Manuals for Prior Art Products

Last year, the Federal Circuit in Shaw Industries Group, Inc. v. Automated Creel Systems, Inc. articulated that a petitioner is not estopped from relying on a ground on which the Patent Trial and Appeal Board (PTAB) declined...more

Knobbe Martens

PTAB: No Estoppel Because A Skilled Searcher Could Not Have Found Company Brochures

Knobbe Martens on

In a Final Written Decision in Johns Manville Corp. v. Knauf Insulation, Inc., IPR2016-00130, Paper 35 (P.T.A.B. May 8, 2017), the PTAB found that petitioner Johns Manville (JM) was not estopped from raising its own company...more

WilmerHale

Strategic Considerations of Estoppel for IPRs After Shaw Industries Group v. Automated Creel Systems

WilmerHale on

When a patent is challenged in an inter partes review and a final written decision has been issued, a statutory estoppel will prevent certain subsequent proceedings. The scope of the estoppel, which applies to both Patent and...more

Foley & Lardner LLP

Second Time Is The Charm For Kyle Bass Challenges Of Ampyra Patents

Foley & Lardner LLP on

The USPTO Patent Trial and Appeal Board (PTAB) has decided to institute inter partes review (IPR) proceedings against the Ampyra patents based on the second set of petitions filed by Kyle Bass and the Coalition for Affordable...more

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