Defendant
1 case as defendant.
Force MOS Technology Co. Ltd. (also known as Force-MOS Technology Co., Ltd. or ForceMOS Technology Inc.) is a fabless semiconductor company headquartered in New Taipei City, Taiwan. Founded in 2006, the company became publicly listed on the Taipei Exchange in 2012 under the stock code 4923. As of May 2026, it employs approximately 49 full-time staff and has a market capitalization of around TWD 1.19 billion (approximately USD 37.5 million as of March 2026).
Force MOS Technology specializes in the design, development, and sale of trench power MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) and analog integrated circuits. Their product portfolio also includes bipolar transistors, diodes, rectifiers, Schottky diodes, and power management solutions such as ESD and TVS devices. These components are used in various applications, including light electric vehicles, brushless DC motor control, notebook computers, mobile phones, LCD TVs, and power supplies. The company leverages advanced 0.25/0.18/0.13 µm process technologies for its MOSFET manufacturing.
Force MOS Technology's patent litigation posture indicates it is an operating company actively defending and asserting its intellectual property. The company is recorded as a defendant in one Patent Trial and Appeal Board (PTAB) case, Excelliance Mos Corporation v. Force MOS Technology Co. Ltd. (2025-04-24). This PTAB case involves a challenge to a patent owned by Force MOS Technology. However, external records also show Force MOS Technology as a plaintiff in U.S. patent infringement lawsuits. Notably, in February 2025, Force MOS Technology secured a victory in a patent infringement lawsuit against ASUSTeK Computer, Inc. in the U.S. District Court for the Eastern District of Texas, which is a venue often associated with patent litigation. The court found ASUS guilty of willful infringement and ordered them to pay USD 10.5 million in damages.
The patents asserted by Force MOS Technology in its litigation against ASUS, such as U.S. Patent Nos. 7,629,634 and 7,812,409, relate to semiconductor devices, specifically MOSFET components designed for improved durability and efficiency. The PTAB case, Excelliance Mos Corporation v. Force MOS Technology Co. Ltd., also involves U.S. Patent No. 7,812,409. This suggests a focus on protecting and validating its core power semiconductor technologies.
Excelliance Mos Corporation filed a petition for inter partes review against Force MOS Technology Co. Ltd. The case reached a Final Written Decision, with Force MOS arguing the petition was time-barred due to a prior infringement complaint against ASUS, identified as a real party-in-interest.