DS

David L. Shafer

MC Magic Circle: 2 patents #1 of 4Top 25%
📍 Houston, TX: #149 of 1,272 inventorsTop 15%
🗺 Texas: #1,045 of 8,590 inventorsTop 15%
Overall (2002): #68,561 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6457560 Gear box oil pumping system Arthur Leon Evans, Brad E. Church, Duane R. Summerlot 2002-10-01
6370855 Grass blower for lawn mower Arthur Leon Evans, Brad E. Church, Duane R. Summerlot 2002-04-16