Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12392419 | Electromagnetically activated pipe valve | David Yakos, Stephen Sanford | 2025-08-19 |
| 12196336 | Electromagnetically activated rising stem valve | David Yakos, Stephen Sanford | 2025-01-14 |
| 12117094 | Magnetically actuated pipe valve with torque-limiting clutch and position indication | David Yakos, Stephen Sanford | 2024-10-15 |
| 11976742 | Electromagnetically activated pipe valve | David Yakos, Stephen Sanford | 2024-05-07 |
| 6557576 | Apparatus and method of flow control through a valve | David E. Walrath, William R. Lindberg | 2003-05-06 |
| 6279595 | Increased flow, split venturi valve system | David E. Walrath, William R. Lindberg | 2001-08-28 |
| 6109293 | Split venturi, axially-rotated valve | David E. Walrath, William R. Lindberg | 2000-08-29 |
| 6026845 | Flow, split Venturi, axially-rotated valve | David E. Walrath, William R. Lindberg, James LaBelle | 2000-02-22 |
| 5718257 | Axial-mounted high flow valve | — | 1998-02-17 |
| 5568954 | Ceiling-mounted device for stabilizing a workpiece | — | 1996-10-29 |
| 5413134 | Winterizing system for an underground sprinkler system | Thomas A. Redle | 1995-05-09 |
| 5355905 | Underground sprinkler system and methods for winterizing and installing the same | Thomas A. Redle | 1994-10-18 |
| 4325160 | Windshield wiper blade assembly | — | 1982-04-20 |