Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5984396 | Drop room flat floor system for a vehicle having an expandable room section | — | 1999-11-16 |
| 5915700 | Pseudo four-leg semi-automatic vehicle leveling system | Jon D. Jacobs | 1999-06-29 |
| 5913525 | Vehicle leveling system with actuation signal | Jon D. Jacobs | 1999-06-22 |
| 5901969 | Vehicle leveling system with latching movement of jacks | Jon D. Jacobs | 1999-05-11 |
| 5902001 | Expandable room flat floor system utilizing notched inner rails and ramped outer rails | — | 1999-05-11 |
| 5890721 | Vehicle leveling system with excess slope indicator | Jon D. Jacobs | 1999-04-06 |
| 5833296 | Motor-operated slide-out drive system with releasable brake | — | 1998-11-10 |
| 5758918 | Vehicle room slide-out operating mechanism | Paul Knoll | 1998-06-02 |
| 5685578 | Locking mechanism for a trailer door | — | 1997-11-11 |
| 5676385 | Semi-automatic vehicle leveling system | Jon D. Jacobs | 1997-10-14 |
| 5628521 | Manually operated vehicle leveling system | Jon D. Jacobs | 1997-05-13 |
| 5356118 | Combination valve and internal spring leg assembly | — | 1994-10-18 |
| 5312119 | Vehicle leveling system with safety interlock | Jon D. Jacobs | 1994-05-17 |
| 5230499 | Extendible and retractable leg with internal spring | — | 1993-07-27 |
| 5176391 | Vehicle leveling system | Jon D. Jacobs | 1993-01-05 |
| 5100105 | Trailer lifting and lowering system | John W. Raffensperger, Jr. | 1992-03-31 |
| 4704947 | Bidirectional fluid flow valve | — | 1987-11-10 |