8604678

Feit Electric asserted claims 1, 2, 3, 16, 19, 20, 21, 25, and 29 of the '678 patent against Elong and Xiamen Longstar based on "Utilitech" and "Better Homes & Gardens" white-filament LED lamps sold at Lowe's and Walmart. The case was dismissed without prejudice under Rule 41(a)(1)(A)(ii) after a joint motion to dismiss was filed on January 29, 2026; no damages, injunction, or merits ruling was entered.

Feit Electric accused Savant Technologies of infringing the '678 and U.S. 8,614,539 patents with GE "LED Pearl Filament" models. The case was stayed on April 1, 2025, pending IPR2024-01357/IPR2025-00260; Patexia lists a statistical closing on August 14, 2025, and no merits decision was identified.

Feit Electric accused Ledvance of infringing the '678 patent with twelve SYLVANIA "White Filament" LED lamp models. The case was stayed on April 2, 2025, pending a final written decision in IPR2024-01357, with joint status reports ordered every 90 days.

Savant, Ledvance, Elong, and Xiamen Longstar petitioned for inter partes review of the '678 patent. The PTAB instituted review on March 5, 2025, and the proceeding remained pending.

Elong International USA petitioned for inter partes review of the '678 patent, with the petition also acting as a motion for joinder with IPR2024-01357. Institution was denied in a Director's discretionary procedural decision on June 25, 2025, and petition fees were refunded.

Savant Technologies petitioned for inter partes review of the '678 patent. The petition was instituted and joined to IPR2024-01357 on June 23, 2025, and the proceeding remained pending after the patent owner's response was filed on July 25, 2025.