PG

Peter D. Greenspan

📍 Southern Pines, NC: #15 of 55 inventorsTop 30%
🗺 North Carolina: #18,756 of 45,564 inventorsTop 45%
Overall (All Time): #2,338,168 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4763516 Automatic tire pressure gauge — 1988-08-16
4251992 Pneumatic propulsion system — 1981-02-24