JH

James F. Helderman

📍 Graham, NC: #16 of 67 inventorsTop 25%
🗺 North Carolina: #14,587 of 45,564 inventorsTop 35%
Overall (All Time): #1,639,729 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5773722 Torque actuated tensile tester 1998-06-30
4969304 Immediately accessible wall and ceiling system 1990-11-13
4250681 Removable and reusable anchor and method 1981-02-17