Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865689 | Method and apparatus for evaporating the volatile components of a polymer | — | 1989-09-12 |
| 4856343 | Monitoring liquid level infed tank and flow rate of liquid therefrom to point of use | — | 1989-08-15 |
| 4848387 | Method and apparatus for segregated introduction of two liquids into a chemical reactor vessel at a common entry point | — | 1989-07-18 |
| 4813240 | Method and apparatus for maintaining a constant active concentration in a cooling tower | — | 1989-03-21 |
| 4798405 | Assembly for electrically non-conductively interconnecting tube ends | — | 1989-01-17 |