Donald W. Felder

📍 Sherman, TX: #62 of 164 inventorsTop 40%

🗺 Texas: #52,441 of 125,132 inventorsTop 45%

Overall (All Time): #2,371,568 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4296678	Polish rod jack system	—	1981-10-27
4286656	Composite carrier bar device	—	1981-09-01