DF

David B. Fenneman

UF US Air Force: 3 patents #2,296 of 16,312Top 15%
📍 Tazewell, VA: #3 of 17 inventorsTop 20%
🗺 Virginia: #9,471 of 34,511 inventorsTop 30%
Overall (All Time): #1,662,827 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5162972 Liquid filled variable capacitor Ronald J. Gripshover 1992-11-10
4516077 Apparatus for and a method of measuring the intrinsic time constant of liquids Larry F. Rinehart, Leonard W. Hardesty 1985-05-07
4319201 Self compressing supersonic flow device John E. Bush, Ronald E. Smith 1982-03-09