RE

Roy D. Estes

📍 Weatherford, TX: #2 of 13 inventorsTop 20%
🗺 Texas: #960 of 8,064 inventorsTop 15%
Overall (2005): #37,556 of 245,428Top 20%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6904984 Stepped polycrystalline diamond compact insert Jack Castle 2005-06-14
6902014 Roller cone bi-center bit — 2005-06-07