Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6050892 | Adjustable floor-mounted air outlet vent | — | 2000-04-18 |
| 5340358 | Air vent | Johann Halupczok | 1994-08-23 |
| 5069114 | Device for introducing a low turbulence displacement air flow into an enclosed space | Werner Veldboer | 1991-12-03 |
| 5058490 | Bottom source air outlet | Wolfgang Schweikert | 1991-10-22 |
| 5054379 | Air release box | — | 1991-10-08 |
| 5003867 | Air conditioning system for grocery store or the like and diffuser units thereof | Donald L. Hudson, David T. Bolen | 1991-04-02 |
| 5001968 | Grocery store air conditioning system having drop-down diffuser units therefor | Donald L. Hudson, David T. Bolen | 1991-03-26 |
| 4580381 | Frame | Werner Veldboer, Horst Wannagat | 1986-04-08 |