Rex E. Duhn

DT Duhn Oil Tool: 1 patents #2 of 3Top 70%

📍 Bakersfield, CA: #8 of 49 inventorsTop 20%

🗺 California: #8,996 of 28,521 inventorsTop 35%

Overall (2003): #136,556 of 273,478Top 50%

Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6543533	Well tubing rotator	Robert K. Meek	2003-04-08