DS

Donald L. Shepherd

📍 Butler, PA: #134 of 347 inventorsTop 40%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,266,542 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D402333 Puzzle — 1998-12-08
4943890 Solid state motor starter Robert W. Schaltenbrand, Brian Seman 1990-07-24