Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478529 | Reclining platform wheelchair support | Donald L. Willey, Robert G. Willey | 2002-11-12 |
| 4834411 | Apparatus for reclining wheelchairs for shampooing chair occupants | Donald L. Willey, Ivyl D. Kopecky, Ronald F. Stoltenberg, Patrick D. Bennett | 1989-05-30 |