Inventor
KIHLBERG ROGER
SE11 patents
⚠️ This page may combine multiple inventors who share the name “KIHLBERG ROGER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
3M INNOVATIVE PROPERTIES CO
8 patentsUS9517366B2Dec 13, 2016
Respirator mask speech enhancement apparatus and method
3M INNOVATIVE PROPERTIES CO6 citations82
US9498658B2Nov 22, 2016
Respirator mask speech enhancement apparatus and method
3M INNOVATIVE PROPERTIES CO15 citations82
US10166416B2Jan 1, 2019
Respirator mask speech enhancement apparatus and method
3M INNOVATIVE PROPERTIES CO3 citations71
US10681756B2Jun 9, 2020
Beacon system to improve wireless audio communication between headset communication devices
3M INNOVATIVE PROPERTIES CO2 citations68
US10561532B2Feb 18, 2020
Method of retrofitting a hearing protector, and a hearing protector
3M INNOVATIVE PROPERTIES CO5 citations59
US11438946B2Sep 6, 2022
Beacon system to improve wireless audio communication between headset communication devices
3M INNOVATIVE PROPERTIES CO0 citations57
US10939487B2Mar 2, 2021
Beacon system to improve wireless audio communication between headset communication devices
3M INNOVATIVE PROPERTIES CO0 citations57
US11418866B2Aug 16, 2022
Voice-activated sound encoding for headsets using frequency domain representations of microphone signals
3M INNOVATIVE PROPERTIES CO0 citations41