DP

Donald F. Pettengill

RL Raychem Limited: 2 patents #317 of 928Top 35%
📍 Palo Alto, CA: #5,719 of 9,675 inventorsTop 60%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,366,494 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4329726 Circuit protection devices comprising PTC elements Lee M. Middleman, Joseph H. Evans 1982-05-11
4238812 Circuit protection devices comprising PTC elements Lee M. Middleman, Joseph H. Evans 1980-12-09