SH

Stephen James Hemphill

📍 Newtown Square, PA: #71 of 183 inventorsTop 40%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #1,918,483 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10777990 Underwater cable repair habitat Michael John McGuckin, Maurice Patrick Smith, Gerard Joseph Rathborne, Patrick James O'Rourke 2020-09-15
5913152 FM composite signal processor 1999-06-15