RJ

Rolf Johannessen

IE International Standard Electric: 1 patents #147 of 567Top 30%
GE: 1 patents #19,878 of 36,430Top 55%
📍 Harlow, ID: #2 of 2 inventorsTop 100%
Overall (All Time): #1,527,639 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8659212 Ultrasound transducer and method for manufacturing an ultrasound transducer Trym Eggen, Charles Edward Baumgartner, David A. Chartrand, Bjornar Sten-Nilsen, Jessica Abraham 2014-02-25
D377680 Toilet ventilator Warren D. Kimber 1997-01-28
4385299 Apparatus for transmitting bearing information Charles W. Earp, Clive D. Wickenden, executor, Francis G. Overbury 1983-05-24