Restem filed a petition for inter partes review of U.S. Patent No. 9,803,176, directed to stem cells obtained from umbilical cord tissue and isolated through a two-step process to create a specific cell marker expression...more
6/13/2025
/ Article III ,
CAFC ,
Claim Construction ,
Intellectual Property Protection ,
Inter Partes Review (IPR) Proceeding ,
Life Sciences ,
Obviousness ,
Patent Infringement ,
Patent Litigation ,
Patent Trial and Appeal Board ,
Patent Validity ,
Patents ,
Pharmaceutical Industry ,
Prior Art ,
Standing ,
Stem cells
In GeigTech East Bay v. Lutron Electronics, patent owner GeigTech argued that Lutron should be estopped under 35 U.S.C. § 325(e)(2) from asserting two prior art grounds that it said Lutron could have reasonably raised in its...more
The PTAB may sua sponte raise unpatentability grounds based upon the prior art of record when reviewing a motion to amend. Nike, Inc. v. Adidas AG, 955 F.3d 45, 51 (Fed. Cir. 2020). It is now clear, however, that the PTAB...more
In Shenzhen Silver Star Intelligent Tech. v. iRobot Corp., IPR2018-00761, Paper 15 (PTAB Sept. 5, 2018), the PTAB denied institution of Shenzhen Silver Star’s IPR petition in view of an earlier challenge to the same patent by...more
In Ericsson Inc. v. Intellectual Ventures I LLC, No. 2016-1671, 2018 WL 2407172 (Fed. Cir. 2018), a divided panel of the Federal Circuit reversed a PTAB decision that had sustained the patentability of claim 1 of U.S. Patent...more
A recent PTAB decision underscores the importance of establishing the level of ordinary skill for a successful obviousness challenge. Cisco Sys., Inc. v. Uniloc USA, Inc., IPR2017-00058, Paper 17 (PTAB Apr. 6, 2018). It is...more
There is no doubt that “the potential for estoppel is one of the important considerations for defendants in deciding whether or not to file an [inter partes review (“IPR”)] petition.” Shaw Indus. Grp., Inc. v. Automated Creel...more
In Microsoft Corp. v. Biscotti, Inc., Nos. 2016-2080, -2082, -2083, 2017 WL 6613262 (Fed. Cir. Dec. 28, 2017), a divided Federal Circuit panel affirmed the Patent Trial and Appeal Board’s decision that Microsoft failed to...more