RH

Richard J. Hance

LN Leeds & Northrup: 2 patents #9 of 44Top 25%
📍 Philadelphia, PA: #1,701 of 4,834 inventorsTop 40%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,370,908 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4274284 Expandable phase change detector device — 1981-06-23
4229230 Expendable immersion thermocouple — 1980-10-21