Nelson I. Geyer

📍 Norman, OK: #4 of 21 inventorsTop 20%

🗺 Oklahoma: #151 of 749 inventorsTop 25%

Overall (1989): #137,308 of 140,708Top 100%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4830113	Well pumping method and apparatus	—	1989-05-16