bee fighting

On November 5, 2009, Analog Devices, Inc. (ADI) sue Knowles Electronics LLC (Knowles) for allegedly infringing on its four patents.  The patents-in-suit covers U.S. Patent No. 6,147,528 that is directed to integrated circuit for microelectromechanical System (MEMS) microphones and MEMS products and No. 6,674,140; No. 7,220,614; and No. 7,364,942 that are directed to anti-stiction wafer for MEMS microphones and/or products and they share the same specification.

Last month, Knowles filed a patent infringement lawsuit against ADI for ADI’s infringement of Knowles U.S. patents: No. 6,781,231 and No. 7,242,089 relating to MEMS microphone packages.

In ADI’s complaint, ADI claimed that they are being, and will continue to be, seriously damaged and irreparably harmed.  ADI seeks to enjoin Knowles from further infringement, among other things.

And in Knowles’ complaint, Knowles claimed that ADI’s part or lot numbers 403 IP625 infringes its patents-in suit.  Knowles also seeks to enjoin ADI from further infringement, among other things.

Maybe both parties could settle out of court and work out a cross-license agreement between them.

As I recall, Knowles was sued by Sonion MEMS A/S for allegedly infringed on Sonion’s U.S. patent No. 6,859,542 relating to similar anti-stiction layer for MEMS microphone packages four years ago.  The case was eventually settled out of court with favorable settlement and business arrangement to both parties.