Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5761908 | Apparatus suited for ventilating rooms contaminated with infectious disease organisms | Heidi D. Oas | 1998-06-09 |
| 5069041 | Method and apparatus for electromechanical air conditioning of industrial electronics | David E. Thielman, Theodore Philip Bezat | 1991-12-03 |
| D310711 | Cover for a transport refrigeration unit | William L. Waldschmidt | 1990-09-18 |
| 4811569 | Zero cube transport refrigeration unit for straight trucks | William L. Waldschmidt | 1989-03-14 |