Executive Summary
TikTok Inc. challenged Cellspin Soft, Inc.'s patent (US 11659381) in a Petition, arguing that the claims are obvious over combinations of prior art references including Hiroishi, Kahn, and Bluetooth. The PTAB found sufficient grounds for institution, noting that both discretionary tests favored proceeding with the case.
Practitioner Note
This case demonstrates the evidentiary and procedural standards applied in patent matters before local courts. Understanding the court's reasoning in TikTok Inc. et al. vs Cellspin Soft, Inc. is valuable context for structuring arguments or assessing risk in similar proceedings.
Related Cases
Askeladden L.L.C.vsCalabrese Stemer LLC
Askeladden L.L.C. successfully petitioned to challenge U.S. Patent No. 7,357,310, arguing that claims 1-4 are anticipated (102) or obvious (103). The PTAB institution of review allows the challenger to proceed with its core arguments regarding payment authorization novelty.
Nearmap US, Inc.vsEagle View Technologies, Inc. et al.
The PTAB denied institution of IPR for Nearmap US against Eagle View Technologies regarding a property database patent (10671648). The denial was based on the Petitioner's failure to provide a detailed, non-bare-quotation explanation linking prior art disclosures to the challenged claims.
AZURITY PHARMACEUTICALS, INC.vsHelsinn Healthcare S.A.
AZURITY PHARMACEUTICALS successfully convinced the PTAB to institute IPR proceedings against Helsinn Healthcare S.A.'s patent covering anti-emetic agents for oncology treatment. The Board found a reasonable likelihood that numerous claims would be unpatentable under 35 U.S.C. § 103 based on prior art references.
Apple Inc.vsResonant Systems, Inc.
Apple Inc. initiated an IPR challenge against Resonant Systems, Inc.'s patent (8093767) regarding vibration modules and haptics. The Petitioner argues that the claimed technology is obvious over various combinations of prior art references under 103.
Samsung Electronics Co., Ltd. et al.vsXiFi Networks R&D, Inc.
The USPTO granted institution for IPR2025-01206 after reviewing the petitioner's likelihood of prevailing. However, all related proceedings are currently stayed pending a Director Review.
Dealing with a patent challenge?
Whether it's a Section 3(d) rejection, a post-grant opposition, or a FRAND dispute, Arctic's patent litigation team has handled it. Get a strategy call.
Disclaimer: This page contains an automated summary based on publicly available judicial records. The content is generated for informational purposes only and does not constitute legal advice. Always verify details against the original source judgment before relying on this information for any legal purpose. If you believe any information is inaccurate, please contact us.