Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11655836 | Quick disconnect mount | Robert R. Shearer, Charles Robert Withers | 2023-05-23 |
| 11378114 | Quick disconnect mount | Robert R. Shearer, Charles Robert Withers | 2022-07-05 |
| 10167058 | Retractable roof | Robert R. Shearer, Charles Robert Withers | 2019-01-01 |
| 9718517 | Ratchet playpen cover for a pontoon boat | Daniel James Serafini | 2017-08-01 |
| 8875646 | Mooring/shipping cover | Charles Robert Withers, Dennis J. Parniske | 2014-11-04 |
| 6026761 | Canopy mounting system | Dennis J. Parniske, Robert R. Shearer, Albert W. Zirkelbach | 2000-02-22 |
| 5622136 | Boat canopy mounting system | Alan P. Zirkelbach, Albert W. Zirkelbach | 1997-04-22 |
| 5425327 | Boat canopy mounting system | Alan P. Zirkelbach, Albert W. Zirkelbach | 1995-06-20 |
| 5303667 | Boat camper system and method | Dennis J. Parniske | 1994-04-19 |
| 5189980 | Rounded top header extrusion for boat windshields | Albert W. Zirkelbach, Alan P. Zirkelbach | 1993-03-02 |
| D324368 | Rounded top header extrusion for boat windshields | Albert W. Zirkelbach, Alan P. Zirkelbach | 1992-03-03 |
| 4993351 | Rounded top header extrusion for boat windshields | Albert W. Zirkelbach, Alan P. Zirkelbach | 1991-02-19 |