HG

Helge O. Granberg

Motorola: 2 patents #4,475 of 12,470Top 40%
📍 Phoenix, AZ: #1,556 of 6,660 inventorsTop 25%
🗺 Arizona: #8,163 of 32,909 inventorsTop 25%
Overall (All Time): #1,299,910 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5015972 Broadband RF transformer Lawrence F. Cygan, Richard S. Bickham, Carl Missele 1991-05-14
4899116 Apparatus and method for paralleling power field effect transistors in high frequency amplifiers Don P. Roehrs 1990-02-06
4733194 Apparatus and method for paralleling power field effect transistors in high frequency amplifiers Don P. Roehrs 1988-03-22
4639760 High power RF transistor assembly Samuel L. Coffman 1987-01-27