Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6298520 | Door closer and mounting bracket | Robert J. Blickhahn, Scott Perry, James E. Jensen, Craig L. Lucas | 2001-10-09 |
| 6205615 | Door closer | James E. Jensen | 2001-03-27 |
| 6125505 | Door closer and mounting bracket | James E. Jensen | 2000-10-03 |
| 6047440 | Non-rotating pinion cap | James E. Jensen | 2000-04-11 |