Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872890 | Multi-stage gas-entrained liquid separator | Ned L. Lamprecht | 1989-10-10 |
| 4853005 | Electrically stimulated filter method and apparatus | Rajan A. Jaisinghani, Thomas A. Hamade | 1989-08-01 |