Inventor

WILLEMSEN KLAUS

DE2 patents

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

SENNHEISER ELECTRONIC

1 patent

US4633498ADec 30, 1986

Infrared headphones for the hearing impaired

SENNHEISER ELECTRONIC49 citations85

FEHR MATTHIAS

1 patent

US8907856B2Dec 9, 2014

Antenna unit for wireless audio transmission

FEHR MATTHIAS0 citations34