DP

David N. Pennell

FI Figgie Inernational: 1 patents #55 of 147Top 40%
GE Gentex: 1 patents #357 of 567Top 65%
📍 Covina, CA: #76 of 287 inventorsTop 30%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,290,420 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5467766 Valve for a pressure breathing system which accomplishes the Valsalva maneuver William K. Ansite 1995-11-21
4621377 Helmet assembly — 1986-11-11