Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640841 | Method of introducing refrigerants into refrigeration systems | Raymond H. Thomas, Rajiv R. Singh, David P. Wilson | 2003-11-04 |
| 6516837 | Method of introducing refrigerants into refrigeration systems | Raymond H. Thomas, Rajiv R. Singh, David P. Wilson | 2003-02-11 |