Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11703222 | Firebox floor of a furnace for combusting wood | Albert Penner, Blair Allan Groening, Bernhard Wall | 2023-07-18 |
| 11419272 | Apparatus for inline and individual bale wrapping of hay bales | Paul Horst, Ross Martin | 2022-08-23 |
| 6334651 | Lumbar support adjusting mechanism | May Duan, Jintao Liu | 2002-01-01 |
| 6019649 | Adjustable propeller system | John Friesen, Henry Friesen | 2000-02-01 |
| 5690048 | Boat hull construction | John Friesen, Henry Friesen | 1997-11-25 |