Inventor

LONGWELL THOMAS F

US2 patents

⚠️ This page may combine multiple inventors who share the name “LONGWELL THOMAS F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KNOWLES ELECTRONICS INC

1 patent

US5222050AJun 22, 1993

Water-resistant transducer housing with hydrophobic vent

KNOWLES ELECTRONICS INC92 citations88

KNOWLES ELECTRONICS LLC

1 patent

US6377678B1Apr 23, 2002

Telephone handset emulator

KNOWLES ELECTRONICS LLC7 citations67