Pinterest, Inc. has filed a new inter partes review petition at the Patent Trial and Appeal Board, opening IPR2026-00366 on May 22, 2026. For patent litigators and in-house IP teams, the filing is worth watching not only for the substantive patentability issues it may raise, but also for what it could signal about Pinterest’s broader litigation and defensive patent strategy.

At this stage, the PTAB docket identifies the proceeding by petitioner name—Pinterest, Inc.—but practitioners should review the underlying petition papers on Docket Alarm for the specific patent number, challenged claims, and real-party-in-interest disclosures as they become available.

Pinterest, Inc. has filed a new inter partes review petition, IPR2026-00365, at the Patent Trial and Appeal Board on May 22, 2026. The proceeding puts another PTAB spotlight on the increasingly important area of platform recommendation and content-delivery technology—an area where social media, e-commerce, and advertising companies continue to face significant patent assertion risk.

At this stage, the publicly available docket reflects that Pinterest is the petitioner, but practitioners will want to watch closely for the identification of the patent owner, the specific patent claims challenged, and the prior art combinations asserted in the petition as the record develops.

Palo Alto Networks, Inc. has filed a new inter partes review petition at the Patent Trial and Appeal Board, opening PTAB proceeding IPR2026-00364 on May 15, 2026. At this stage, the filing itself is the key development: the petition signals that Palo Alto Networks is seeking to invalidate claims of an asserted patent through the Board’s administrative trial process rather than litigating patentability exclusively in district court.

The currently available docket information identifies Palo Alto Networks, Inc. as the petitioner, but practitioners will want to watch closely for the patent owner’s appearance, the specific patent number at issue, and the claim set Palo Alto Networks has targeted.

Apple Inc. has launched a new inter partes review at the Patent Trial and Appeal Board, filing IPR2026-00316 on May 18, 2026. As of the initial docket entry, the proceeding is styled simply under Apple’s name, and practitioners will want to watch for the petition, mandatory notices, and any patent owner preliminary response to flesh out the dispute. You can track the docket here: View full case on Docket Alarm.

At this early stage, the publicly available case caption confirms the petitioner—Apple Inc.—but the docket details provided here do not yet identify the challenged patent number or the patent owner by name.

Meta Platforms, Inc. has filed a new inter partes review petition at the Patent Trial and Appeal Board, opening IPR2026-00347 on May 13, 2026. At this early stage, the PTAB docket reflects the filing of the petition, but practitioners should expect the key details—most importantly the specific patent being challenged, the patent owner’s identity, and the precise prior-art combinations—to come into sharper focus as the docket develops.

Even from the initial filing, this is a proceeding worth watching.

Palo Alto Networks, Inc. has filed a new inter partes review petition at the Patent Trial and Appeal Board, opening IPR2026-00364 on May 15, 2026. At this stage, the case is notable less for any Board rulings—which have not yet issued—and more for what it may signal about the company’s broader patent defense strategy and the types of prior art and validity theories likely to be tested at the PTAB.

Based on the currently available docket information, Palo Alto Networks is the named petitioner.

Meta Platforms, Inc. has launched a new inter partes review at the Patent Trial and Appeal Board, filing IPR2026-00347 on May 13, 2026. At this stage, the PTAB docket reflects the petition filing, but practitioners should note that early-filed IPRs like this one often become important indicators of broader litigation and licensing strategy, especially when a major technology company is the petitioner.

The proceeding is styled Meta Platforms, Inc., identifying Meta as the challenging party.

Palo Alto Networks, Inc. has filed a new inter partes review petition at the Patent Trial and Appeal Board, opening IPR2026-00362 on May 15, 2026. For patent litigators and in-house IP teams, this is the kind of proceeding worth watching early: even before the Board decides whether to institute review, the petition can offer a detailed roadmap of invalidity theories, claim-prioritization strategy, and the petitioner’s broader litigation posture.

At this stage, the publicly available case caption identifies Palo Alto Networks, Inc. as the petitioner, but the docket summary provided here does not specify the challenged patent number, the patent owner, or the exact unpatentability grounds asserted.

ATT Services, Inc. has launched a new inter partes review at the Patent Trial and Appeal Board, filing IPR2026-00348 on May 5, 2026.

ATT Services, Inc. has launched a new inter partes review at the Patent Trial and Appeal Board, filing IPR2026-00349 on May 5, 2026. At this early stage, the proceeding is notable less for any merits ruling and more for what it signals: another major operating company turning to the PTAB as part of a broader patent-defense playbook.

Based on the case caption, ATT Services, Inc. is the petitioner.

The Patent Trial and Appeal Board granted institution in IPR2026-00146, concluding that the petitioner met the threshold showing required under 35 U.S.C. § 314(a): a reasonable likelihood of prevailing on at least one challenged claim. At the institution stage, that is the key question, and the Board found the petition sufficiently supported to move forward to a full trial on patentability.

Although an institution decision is not a final merits ruling, it is often a significant signal.

Skechers U.S.A., Inc. has launched a new inter partes review at the Patent Trial and Appeal Board, filing IPR2026-00343 on April 24, 2026. While the publicly available docket caption currently identifies the proceeding by petitioner name, the filing is one worth watching for companies and counsel involved in consumer products, design-adjacent utility patents, and competitive product litigation.

At this stage, the PTAB docket reflects that Skechers U.S.A., Inc. is the petitioner seeking review of an issued patent.

A new inter partes review, IPR2026-00343, was filed at the Patent Trial and Appeal Board on April 24, 2026, naming Skechers U.S.A., Inc. in the proceeding.

Apple has filed a new inter partes review, IPR2026-00340, at the Patent Trial and Appeal Board on April 24, 2026, opening another closely watched front in the company’s patent dispute strategy. The proceeding is captioned Apple Inc., and, as with many newly filed PTAB matters, practitioners will be watching the petition and any forthcoming preliminary response to see how the issues are framed before the Board decides whether to institute review.

At this early stage, the public docket identifies Apple as the petitioner but may not yet provide the full set of details practitioners typically want immediately, including the patent owner’s identity, the patent number being challenged, and the precise prior-art grounds asserted.

Skechers U.S.A., Inc. has filed a new inter partes review petition at the Patent Trial and Appeal Board, opening PTAB docket IPR2026-00343 on April 24, 2026. At this stage, the filing appears to be a newly instituted challenge record centered on a patent dispute involving Skechers, with practitioners likely watching for the patent owner’s preliminary response, the Board’s institution decision, and the substantive invalidity theories that will shape the case.

Based on the current docket entry, Skechers is the petitioner in the proceeding.