In recent months, a fellow by the name of Gregory Bender has filed complaints of patent infringement against consumer product OEMs, service providers and semiconductor suppliers. The patent in question is US 5,103,188, "Buffered transconductance amplifier," filed almost 20 years ago. The growing list of defendants includes:
Infineon Technologies North America Corporation
NXP Semiconductors USA, Inc.
On Semiconductor Corporation
Silicon Laboratories, Inc.
AT&T Inc.
AT&T Mobility
Ericsson, Inc.
Sony-Ericsson Mobile Communications (USA), Inc.
Seagate Technologies
Western Digital Corporation
Hitachi America Ltd
Panasonic Corporation of North America
Samsung Semiconductor, Inc.
Toshiba America , Inc
Nokia Inc.
Cirrus Logic, Inc
International Business Machines Corporation (IBM)
LG Electronics U.S.A., Inc.
NEC Corporation of America
Pioneer Electronics (USA) Inc.
Sharp Electronics Corporation
