Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481740 | Ball and socket trailer hitch assembly | Reinhold A. Haase, John D. Hull, Lynn D. Alber, Todd J. Yost, Thomas G. Johnson | 2002-11-19 |
| 5739439 | Vertical stratified air/water sampling device | Lynn D. Alber, John J. Lainson | 1998-04-14 |
| 5261132 | Patient chair construction with recliner back tilt control and footrest hinge construction | Charles D. Bufford, Thomas G. Johnson | 1993-11-16 |
| 5182821 | Panel construction for bathing tub | Charles D. Bufford | 1993-02-02 |
| 5172455 | Buckle and belt assembly construction for patient restraint | Thomas G. Johnson, Reinhold A. Haase | 1992-12-22 |