Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5877409 | Method and system for determining viscosity index | — | 1999-03-02 |
| 4583868 | Temperature differential detection device | — | 1986-04-22 |
| 4529703 | Monitoring flow-rate changes of a plurality of fluid streams | Edward L. Lisi | 1985-07-16 |