PT

Patrick R. Tisdale

BT Bell Helicopter Textron: 1 patents #1 of 15Top 7%
📍 Keller, TX: #6 of 23 inventorsTop 30%
🗺 Texas: #1,330 of 5,527 inventorsTop 25%
Overall (1994): #83,650 of 165,921Top 55%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5358381 Yoke for helicopter rotor systems Cecil E. Covington, Timothy Kent Ledbetter, Ernest Powell, Madison K. Robinson, Ajay Sehgal 1994-10-25