Paltalk Holdings, Inc. vs. Webex Communications, Inc., et al

Case Background

On July 23, 2021, Plaintiff PalTalk Holdings, Inc. filed a Patent Infringement lawsuit in the District Court, Texas Western, Waco Division(Case number: 6:21cv757). Judge Alan D Albright presided over the case.

Cause

Paltalk Holdings, Inc. filed a patent infringement lawsuit against WebEx Communications, Inc., Cisco WebEx LLC, and Cisco Systems, Inc. The case involved U.S. Patent No. 6,683,858 ("'858 Patent"), titled "Hybrid server architecture for mixing and non-mixing client conferencing." The defendants operated substantial businesses in Texas through their campuses in Austin and San Antonio. The case was filed in the United States District Court for the Western District of Texas, Waco Division. Cisco acquired WebEx Communications on March 15, 2007. The defendants made, used, sold, and imported audio conferencing systems that allegedly infringed Paltalk's patent.

Injuries

The defendants implemented the patented technology across thirteen distinct products without obtaining proper authorization from Paltalk. These products included platform-specific versions for Microsoft Windows, Apple iOS, Google Android, and Apple macOS. They also released specialized applications such as Webex Meetings, Teams, Training Center, Support Center, Event Center, Sales Center, Enterprise Edition, and Connect, all of which incorporated the infringing technology. The unauthorized implementation extended to core functionalities of WebEx products. The defendants utilized Paltalk's patented methods for processing audio packets, detecting active speakers, assessing client capabilities, multiplexing audio streams, and managing mixed and non-mixed audio distribution. Their products directly replicated the patented hybrid server architecture that efficiently handled varying client confer