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| (Source: EDTX) |
Samsung Electronics has failed to persuade the Patent Trial and Appeal Board to institute four of six inter partes review petitions it filed against patents owned by U.S.-based Collision Communications Inc.
In decisions issued in February and March 2025, the PTAB declined to institute IPR proceedings on four U.S. patents — U.S. Patent Nos. 7,593,492, 6,947,505, 8,089,946, and 9,814,071 — all of which relate to wireless communications technologies such as multiuser detection and signal interference mitigation. The four petitions were filed by Samsung in August 2024.
Two additional IPR petitions, targeting U.S. Patent Nos. 7,463,703 and 7,920,651 — both titled Joint Symbol, Amplitude, and Rate Estimator — were filed in September and October 2024. Institution decisions on those cases are still pending.
Under 35 U.S.C. § 314(d), institution decisions by the PTAB are "final and nonappealable," meaning Samsung cannot challenge the board's denial of review on the four earlier patents.
The developments come as Samsung faces a patent infringement suit brought by Collision Communications in the Eastern District of Texas. The complaint, filed in December 2023, accuses Samsung Electronics and Samsung Electronics America of infringing all six patents.
The asserted patents cover technology used in 4G, 5G, and Wi-Fi communications. Collision has alleged that a wide range of Samsung products — including smartphones, tablets, notebooks, TVs as well as smart appliances such as refrigerators, washing machines, dryers, ranges, air dressers, dishwashers, and microwaves from the Bespoke line — infringe its intellectual property. The company also targets Samsung's SmartThings Wi-Fi products, Wi-Fi routers, and 5G base stations.
Institution decisions on the remaining two IPRs are expected in the coming months.
By PatenTrip
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