Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5549357 | Adjustable backrest apparatus for wheelchairs | Rex W. Stevens | 1996-08-27 |
| 5382036 | Molded, fiber-reinforced, tubular wheelchair frame assembly and method | Daniel E. Williamson | 1995-01-17 |
| 5328183 | Folding wheelchair frame | — | 1994-07-12 |
| 5306035 | Single-hand manual drive wheelchair assembly | — | 1994-04-26 |
| D341344 | Wheelchair frame | Daniel E. Williamson | 1993-11-16 |