Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850984 | Tubing connector | — | 1989-07-25 |
| 4832848 | Method of and apparatus for establishing and maintaining dispersions of liquid and gaseous fractions | Gerhard Velebil | 1989-05-23 |