Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| D336681 | Combined pipe coupler and plug | — | 1993-06-22 | |
| 4727979 | Conveyor hanger with a plurality of movable grip elements | Lawrence S. Wolfson, David R. Pearl, Richard P. Ray, Roald P. Nymark, Harold L. Osthus | 1988-03-01 | $4,200,000 |
| 4580705 | Conveyor hanger with rotating gate gripper | Lawrence S. Wolfson | 1986-04-08 | $2,773,000 |