Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6666985 | Polyol ester lubricants for hermetically sealed refrigerating compressors | Eugene R. Zehler | 2003-12-23 |
| 6551523 | Blended polyol ester lubricants for refrigerant heat transfer fluids | — | 2003-04-22 |
| 6551524 | Polyol ester lubricants, especially those compatible with mineral oils, for refrigerating compressors operating at high temperatures | — | 2003-04-22 |