The Federal Circuit recently affirmed a ruling by the Patent Trial and Appeal Board (PTAB) in an inter partes review (IPR) filed by ZTE and joined by LG, finding claims of CyWee Group’s U.S. Patent No. 8,441,438 unpatentable as obvious. CyWee Group v. ZTE, No. 21-1855 (Fed. Cir. Jan. 18, 2024). The ’438 patent claims 3D motion-tracking technology for handheld devices like smartphones. The appeal included both IPR procedural issues and substantive patent law issues. In siding with the PTAB, the Federal Circuit rejected CyWee’s argument that the Board should not have allowed LG to oppose CyWee's motion to amend its claims. The court also affirmed the Board’s finding that the proposed amended claims would have been obvious over the prior art.
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