Scarinci Hollenbeck, LLC
The Firm
201-896-4100 info@sh-law.comFirm Insights
Author: Scarinci Hollenbeck, LLC
Date: May 31, 2018
The Firm
201-896-4100 info@sh-law.comIn SAS Institute Inc v Iancu, the U.S. Supreme Court ruled that when the United States Patent and Trademark Office (USPTO) conducts an inter partes review, it must decide the patentability of all challenged claims. The decision follows the Court’s prior ruling in upholding the validity of the entire inter partes review process.

Inter partes review (IPR) allows private parties to challenge previously issued patent claims in an adversarial process before USPTO. The Director of the USPTO may institute a review after determining “there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” Pursuant to 35 U.S.C. §318(a), the USPTO “shall issue a final written decision with respect to the patentability of any patent claim challenged by the petitioner” at the close of the litigation.
SAS Institute Inc. (SAS) sought review of respondent ComplementSoft’s software patent, alleging that all 16 of the patent’s claims were unpatentable. Relying on a USPTO regulation (37 CFR §42.108(a)) recognizing a power of “partial institution,” the Director instituted review on some of the claims and denied review on the rest. The Patent Trial and Appeal Board’s (Board) final decision addressed only the claims on which the Director had instituted review. On appeal, the Federal Circuit rejected SAS’s argument that §318(a) required the Board to decide the patentability of every claim challenged in the IPR petition.
By a vote of 5-4, the Supreme Court reversed. In an opinion written by Justice Neil Gorsuch, the majority held that the USPTO must decide the patentability of all challenged claims.
In reaching its decision, the Court relied on the plain text of §318(a). “The word ‘shall’ generally imposes a nondiscretionary duty, and the word ‘any’ ordinarily implies every member of a group,” Justice Gorsuch explained. “Thus, §318(a) means that the Board must address every claim the petitioner has challenged.”
The Court also rejected the USPTO’s argument that the Director has the discretion to institute a partial review, concluding that both the text and context strongly counsel against inferring such a power. Justice Gorsuch wrote:
Section 314(a)’s requirement that the Director find “a reasonable likelihood” that the petitioner will prevail on “at least 1 of the claims challenged in the petition” suggests, if anything, a regime where a reasonable prospect of success on a single claim justifies review of them all. Again, if Congress had wanted to adopt the Director’s claim-by-claim approach, it knew how to do so. See §304. Nor does it follow that, because §314(a) invests the Director with discretion on the question whether to institute review, it also invests him with discretion regarding what claims that review will encompass.
Justice Gorsuch went on to note that the USPTO should raise its concerns about IPR proceedings with Congress. “The Director’s policy argument—that partial institution is efficient because it permits the Board to focus on the most promising challenges and avoid spending time and resources on others—is properly addressed to Congress, not this Court,” he wrote.
The Court’s decision in SAS Institute Inc. v. Iancu will likely impact how both petitioners and patent holders approach IPR proceedings. We encourage businesses to consult with an experienced patent attorney regarding the potential implications for your organization.
Do you have any questions? Would you like to discuss the matter further? If so, please contact me, David Einhorn, or the Scarinci Hollenbeck attorney with whom you work at 201-806-3364.
No Aspect of the advertisement has been approved by the Supreme Court. Results may vary depending on your particular facts and legal circumstances.

High-profile founder litigation is more than just a media spectacle. For startup founders, these cases underscore the legal and structural risks that can arise when rapid growth outpaces formal oversight. While launching a new company can be both an exciting and deeply rewarding endeavor, founders must be mindful that it also comes with significant risks. […]
Author: Dan Brecher

Every New Jersey company should periodically evaluate its governance framework. Strong corporate governance protects directors and officers, builds investor confidence, reduces litigation exposure, and positions a company for sustainable growth. The first quarter of the year is a great time to evaluate your corporate governance practices and perform any routine maintenance needed to keep that […]
Author: Ken Hollenbeck

Being served with a lawsuit is one of the most stressful legal events a business or individual can face. Whether the claim involves a contract dispute, an employment matter, an intellectual property issue, or another legal challenge, the actions you take in the first few days can significantly shape the outcome of your case. Acting […]
Author: Robert E. Levy

Special Purpose Acquisition Companies (SPACs) continue to gain momentum as we move through 2026. After enduring a significant contraction following the 2021 boom and the regulatory scrutiny that followed, SPAC activity rebounded sharply in 2025 and now carries forward into 2026 with real momentum. The SPAC resurgence reflects broader improvements in both market conditions and the […]
Author: Dan Brecher

Compliance programs are no longer judged by how they look on paper, but by how they function in the real world. Compliance monitoring is the ongoing process of reviewing, testing, and evaluating whether policies, procedures, and controls are being followed—and whether they are actually working. What Is Compliance Monitoring? In today’s heightened regulatory environment, compliance […]
Author: Dan Brecher

New Jersey personal guaranty liability is a critical issue for business owners who regularly sign contracts on behalf of their companies. A recent New Jersey Supreme Court decision provides valuable guidance on when a business owner can be held personally responsible for a company’s debt. Under the Court’s decision in Extech Building Materials, Inc. v. […]
Author: Charles H. Friedrich
No Aspect of the advertisement has been approved by the Supreme Court. Results may vary depending on your particular facts and legal circumstances.
Consider subscribing to our Firm Insights mailing list by clicking the button below so you can keep up to date with the firm`s latest articles covering various legal topics.
Stay informed and inspired with the latest updates, insights, and events from Scarinci Hollenbeck. Our resource library provides valuable content across a range of categories to keep you connected and ahead of the curve.
Let`s get in touch!
Sign up to get the latest from the Scarinci Hollenbeck, LLC attorneys!