Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6158967 | Barrier fluid seal, reciprocating pump and operating method | — | 2000-12-12 |
| 4781032 | Energy conserving compressor refrigeration apparatus | — | 1988-11-01 |
| 4751824 | Energy conserving refrigeration valve control apparatus | — | 1988-06-21 |
| 4679986 | Energy conserving refrigeration apparatus and method | — | 1987-07-14 |