Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6430834 | Installation template for a door closer | Christopher Roger Myers, Thomas Ned Trumpinski, James E. Jensen, Charles T. Barth | 2002-08-13 |
| 6374505 | Installation template for a door closer | Christopher Roger Myers, Thomas Ned Trumpinski, James E. Jensen, Charles T. Barth | 2002-04-23 |
| 6317996 | Installation template for a door closer | Christopher Roger Myers, Thomas Ned Trumpinski, James E. Jensen, Charles T. Barth | 2001-11-20 |
| 6298520 | Door closer and mounting bracket | Robert J. Blickhahn, Scott Perry, James E. Jensen, Andy Current | 2001-10-09 |
| 5535514 | Method for making a hydraulic door closer having a one-piece molded housing body | — | 1996-07-16 |
| 5513467 | Linear drive power door operator | Andrew Current | 1996-05-07 |
| 5502874 | Speed regulating valve for fluid filled door closers | — | 1996-04-02 |
| 5220708 | Self-trimming shield for a door heel | Rex H. Lasson | 1993-06-22 |