Middle-market private equity firm Gryphon Investors has acquired a majority stake in Riverside, Calif.-based K&N Engineering, a provider of air and oil filtration products for the automobile industry.

SAN FRANCISCO--(BUSINESS WIRE)--Gryphon Investors (“Gryphon”), a leading middle market private equity firm based in San Francisco, announced today that it has acquired a majority interest in K&N ...

K&L Gates filed a trademark infringement lawsuit Wednesday in Massachusetts District Court on behalf of K&N Engineering Inc, a seller of automotive air and oil filters and other parts. The suit ...

K&N Engineering has opened a new manufacturing facility and warehouse in Grand Prairie, Texas. The new facility now serves as the high-performance automotive filtration products manufacturer’s primary ...