Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5580504 | Method of making a mattress overlay | Donald C. Spann, Daniel J. Schaefer | 1996-12-03 |
| 5523040 | Method and apparatus for making a custom support | — | 1996-06-04 |
| 5335975 | Body support system | Ruth H. Lusher | 1994-08-09 |
| 5269323 | Body support | — | 1993-12-14 |
| 5252278 | Method of making a mattress overlay | Donald C. Spann, Daniel J. Schaefer | 1993-10-12 |
| 5133761 | Finger joint prosthesis | — | 1992-07-28 |
| 5103517 | Disposable surgical pad | — | 1992-04-14 |
| 5083335 | Pressure reduction foam mattress support | Daniel J. Schaefer | 1992-01-28 |
| 5025519 | Multi-section mattress overlay for systematized pressure dispersion | Donald C. Spann, Daniel J. Schaefer | 1991-06-25 |
| 4989283 | Inflation control for air supports | — | 1991-02-05 |
| 4862538 | Multi-section mattress overlay for systematized pressure dispersion | Donald C. Spann, Daniel J. Schaefer | 1989-09-05 |
| 4840634 | Calibration controller for controlling electrically operated machines | Walter Muller | 1989-06-20 |