Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4635721 | Method of displacing fluids within a gas-condensate reservoir | Robert S. Metcalfe, James W. Calvin, Joseph J. Chaback | 1987-01-13 |
| 4548267 | Method of displacing fluids within a gas-condensate reservoir | Robert S. Metcalfe, James W. Calvin | 1985-10-22 |