Inventor

MARISSEN ROELOF A

NL3 patents

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

SONION NEDERLAND BV

2 patents

US7684575B2Mar 23, 2010

Electret assembly for a microphone having a backplate with improved charge stability

SONION NEDERLAND BV77 citations95

US7136496B2Nov 14, 2006

Electret assembly for a microphone having a backplate with improved charge stability

SONION NEDERLAND BV96 citations95

VAN HALTEREN AART Z

1 patent

US8280082B2Oct 2, 2012

Electret assembly for a microphone having a backplate with improved charge stability

VAN HALTEREN AART Z77 citations93