HS

Herman Douglas, Sr.

📍 Norristown, PA: #206 of 488 inventorsTop 45%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,272,929 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5664272 Auto control pillow for cars, vans, trucks and tractors — 1997-09-09
4909804 Child's toilet training pants — 1990-03-20