Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8916508 | Drag-reducing copolymer compositions | Earl Parnell, Todd Sanner, David Philpot, Andrei Zelenev, Gydeon Gilzow +2 more | 2014-12-23 |
| 8865632 | Drag-reducing copolymer compositions | Earl Parnell, Todd Sanner, David Philpot, Andrei Zelenev, Gydeon Gilzow +2 more | 2014-10-21 |
| 5887653 | Method for clay stabilization | L. W. Bishop | 1999-03-30 |
| 5363916 | Method of gravel packing a well | Ronald E. Himes, Charles V. Hunt, Mary A. H. Laramay | 1994-11-15 |
| 5346339 | Pipeline cleaning process | Ronald E. Himes, Jeffrey A. Dahl, Charles V. Hunt | 1994-09-13 |
| 5304620 | Method of crosslinking cellulose and guar derivatives for treating subterranean formations | Charles V. Hunt, Mary A. H. Laramay, Alireza Rahimi, Murray G. Clark | 1994-04-19 |
| 5122549 | Crosslinkable cellulose derivatives | Charles V. Hunt | 1992-06-16 |
| 5067565 | Crosslinkable cellulose derivatives | Charles V. Hunt | 1991-11-26 |
| 5062969 | Crosslinkable interpolymers | Charles V. Hunt, Weldon M. Harms | 1991-11-05 |
| 4982793 | Crosslinkable cellulose derivatives | Charles V. Hunt, Weldon M. Harms | 1991-01-08 |
| 4964467 | Non-aqueous viscosified carbon dioxide and method of use | Charles V. Hunt | 1990-10-23 |
| 4959163 | Polyampholytes-high temperature polymers and method of use | Charles V. Hunt | 1990-09-25 |
| 4780221 | Method and composition for viscosifying hydrocarbons | Charles V. Hunt | 1988-10-25 |
| 4767550 | Vicinal diol containing monomers and polymers and methods of treating a subterranean formation | David J. Hanlon, Mike Conway, Charles V. Hunt | 1988-08-30 |
| 4730081 | Vicinal diol containing monomers and methods of preparing | David J. Hanlon, Mike Conway, Charles V. Hunt | 1988-03-08 |
| 4622155 | Method for fracturing subterranean formations | Lawrence E. Harris, Richard W. Pauls | 1986-11-11 |
| 4554082 | Fracturing method for stimulation of wells utilizing carbon dioxide based fluids | Phillip C. Harris, Charles V. Hunt | 1985-11-19 |
| 4519455 | Fracturing method for stimulation of wells utilizing carbon dioxide based fluids | Phillip C. Harris, Charles V. Hunt | 1985-05-28 |