SP

Stephen P. Porter

📍 Imlay City, MI: #2 of 6 inventorsTop 35%
🗺 Michigan: #1,659 of 6,198 inventorsTop 30%
Overall (2002): #112,588 of 266,432Top 45%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6357473 One way anti-backflow valve Andrew L. Patrius, Jr. 2002-03-19