Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4773257 | Method and apparatus for testing the outflow from hydrocarbon wells on site | John R. Bocek, Dennis R. Canfield, Ke-Tien Liu | 1988-09-27 |
| 4689989 | Method and apparatus for testing the outflow from hydrocarbon wells on site | John R. Bocek, Dennis R. Canfield, Ke-Tien Liu | 1987-09-01 |