WP

Walter W. Powell

📍 Houston, TX: #87 of 987 inventorsTop 9%
🗺 Texas: #496 of 5,527 inventorsTop 9%
Overall (1994): #16,732 of 165,921Top 15%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5341838 Direct spring pressure operated valve 1994-08-30
5329968 Shuttle valve 1994-07-19