Telecom Lead America: Comba Telecom has filed a lawsuit
against CommScope and its subsidiary Andrew to invalidate eight of Andrew’s
patents covering remote electrical (RET) antennas.
The company has taken this action to protect its ability
to compete in the U.S. market after legal actions initiated by CommScope,
through its Andrew subsidiary, which were focused on the alleged infringement
of patents by Comba related to RET technology for base station antennas used in
This patent dispute is also a part of the same patent
family that Andrew LLC has asserted against Comba in China and Brazil.
Last year, CommScope
filed patent infringement lawsuits in China and started legal proceedings
in Brazil against Comba Telecom Systems Holdings and its affiliates.
The legal actions by CommScope, through its Andrew LLC
subsidiary, were focused on Comba’s alleged infringement of the company’s
patents related to its remote electrical tilt (RET) technology for base
station antennas used in wireless networks.
Coloba filed this complaint in the United States District
Court for the District of Delaware. The patents in dispute are U.S. Patent Nos.
6,198,458; 6,538,619; 6,600,457; 6,567,051; 6,590,546; 6,603,436; 6,346,924;
These patents are closely related to the three patents
owned by Andrew LLC that were recently revoked by the European Patent Office.
In an official release, Comba said that it believes these
patents to be invalid based on prior art (pre-existing publications that show
the inventions are not new or are publicly known). This basis includes the
prior art references identified by the European Patent Office.