BK

Bengt Kallman

3M: 4 patents #3,441 of 11,543Top 30%
Overall (All Time): #1,213,954 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10441828 Powered air-purifying respirator Desmond T. Curran, Andrew Murphy, Garry J. Walker, Terence M. Sayers, Christopher P. Henderson 2019-10-15
D739007 Powered air purifying respirator unit control panel Andrew Murphy, Christopher N. Findlay 2015-09-15
9119979 Method of controlling a powered air purifying respirator Desmond T. Curran, Andrew Murphy, Alan Lee, Vladimir Dubrovskii, Bengt Garbergs 2015-09-01
7244106 Process and device for flow control of an electrical motor fan Hans-Olof Frojd 2007-07-17