DC

Donald R. Christensen

GL Grass Valley Limited: 3 patents #20 of 111Top 20%
KT King-Seeley Thermos: 2 patents #13 of 38Top 35%
📍 Albert Lea, MN: #5 of 53 inventorsTop 10%
🗺 Minnesota: #11,810 of 52,454 inventorsTop 25%
Overall (All Time): #891,295 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
D349290 Controller for a video editing system Leonard N. Albrecht, Ronald E. Hendriks, Jerry M. Lewis 1994-08-02
4947440 Shaping of automatic audio crossfade Robert Bateman 1990-08-07
4920311 User selection of meter ballistics Robert Bateman 1990-04-24
4885792 Audio mixer architecture using virtual gain control and switching Robert Bateman, Thomas A. Grancey 1989-12-05
4277002 Ice dispensing mechanism Ralph F. Stanford 1981-07-07
4254896 Ice dispensing machine having an agitator and a fixed deflector Ralph F. Stanford 1981-03-10