Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6768050 | Conduit connector apparatus | — | 2004-07-27 |
| 6325424 | Coupling assembly having enhanced axial tension strength | Paul R. Metcalfe, Craig A. Homberg | 2001-12-04 |
| 4989890 | Length and width adjustable wheelchair | Herbert J. Hoekstra, Allen J. Boris, Douglas M. Nickles | 1991-02-05 |
| 4981305 | Symmetrically modular wheelchair | Allen J. Boris, Wieslaw Kosc | 1991-01-01 |
| 4840390 | Symmetrically modular wheelchair | Allen J. Boris, Wieslaw Kosc | 1989-06-20 |
| 4813693 | Adjustable child's wheelchair | Herbert J. Hoekstra, Allen J. Boris, Douglas M. Nickles | 1989-03-21 |
| 4805925 | Adjustable rear wheel mounting assembly for wheelchairs | Gilbert E. Haury, Nathalal C. Patel, Thomas R. Wiatrak, Neal J. Curran | 1989-02-21 |
| 4721321 | Wheelchair with adjustable rear canes | Gilbert E. Haury, Nathalal G. Patel, Thomas R. Wiatrak, Neal J. Curran | 1988-01-26 |
| 4595212 | Folding sports wheelchair | Gilbert E. Haury, Nathalal G. Patel, Thomas R. Wiatrak, Neal J. Curran | 1986-06-17 |
| 4555121 | Invalid's chair to facilitate transfer to an automobile | Nathalal G. Patel, Allen J. Boris | 1985-11-26 |
| 4500102 | Sports wheelchair | Gilbert E. Haury, Nathalal G. Patel, Thomas R. Wiatrak | 1985-02-19 |
| 4439880 | Geriatric bed construction with sideguards | Joseph A. Koncelik, David B. Chaney, Thomas D. Hontz | 1984-04-03 |
| 4404698 | Overbed tray arrangement | Joseph A. Koncelik, David B. Chaney, Kevin Reeder, Thomas D. Hontz | 1983-09-20 |
| 4360240 | Modular storage units | Joseph A. Koncelik, David B. Chaney | 1982-11-23 |