Inventor
KALLMAN BENGT
SE4 patents
⚠️ This page may combine multiple inventors who share the name “KALLMAN BENGT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
3M INNOVATIVE PROPERTIES CO
3 patentsUS7244106B2Jul 17, 2007
Process and device for flow control of an electrical motor fan
3M INNOVATIVE PROPERTIES CO93 citations92
US10441828B2Oct 15, 2019
Powered air-purifying respirator
3M INNOVATIVE PROPERTIES CO8 citations81
USD739007SSep 15, 2015
Powered air purifying respirator unit control panel
3M INNOVATIVE PROPERTIES CO5 citations68