Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5048302 | Refrigerant system having controlled variable speed drive for compressor | Thomas K. Hagenlocher, Karl-Heinz Linnig, Michael Toomey, Donald L. Hudson | 1991-09-17 |
| 5003867 | Air conditioning system for grocery store or the like and diffuser units thereof | Franc Sodec, Donald L. Hudson | 1991-04-02 |
| 5001968 | Grocery store air conditioning system having drop-down diffuser units therefor | Franc Sodec, Donald L. Hudson | 1991-03-26 |