Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5762140 | High viscosity low friction pressure loss well treating fluids and methods | Mary Anne Hardy, Steve C. Harthun | 1998-06-09 |
| 5604186 | Encapsulated enzyme breaker and method for use in treating subterranean formations | Ronald J. Powell, Michael L. Carter, Samuel D. Pelley, Lewis R. Norman | 1997-02-18 |
| 5363916 | Method of gravel packing a well | Ronald E. Himes, Marlin D. Holtmyer, Mary A. H. Laramay | 1994-11-15 |
| 5346339 | Pipeline cleaning process | Ronald E. Himes, Jeffrey A. Dahl, Marlin D. Holtmyer | 1994-09-13 |
| 5304620 | Method of crosslinking cellulose and guar derivatives for treating subterranean formations | Marlin D. Holtmyer, Mary A. H. Laramay, Alireza Rahimi, Murray G. Clark | 1994-04-19 |
| 5122549 | Crosslinkable cellulose derivatives | Marlin D. Holtmyer | 1992-06-16 |
| 5067565 | Crosslinkable cellulose derivatives | Marlin D. Holtmyer | 1991-11-26 |
| 5062969 | Crosslinkable interpolymers | Marlin D. Holtmyer, Weldon M. Harms | 1991-11-05 |
| 4982793 | Crosslinkable cellulose derivatives | Marlin D. Holtmyer, Weldon M. Harms | 1991-01-08 |
| 4964467 | Non-aqueous viscosified carbon dioxide and method of use | Marlin D. Holtmyer | 1990-10-23 |
| 4959163 | Polyampholytes-high temperature polymers and method of use | Marlin D. Holtmyer | 1990-09-25 |
| 4780221 | Method and composition for viscosifying hydrocarbons | Marlin D. Holtmyer | 1988-10-25 |
| 4767550 | Vicinal diol containing monomers and polymers and methods of treating a subterranean formation | David J. Hanlon, Marlin D. Holtmyer, Mike Conway | 1988-08-30 |
| 4730081 | Vicinal diol containing monomers and methods of preparing | Marlin D. Holtmyer, David J. Hanlon, Mike Conway | 1988-03-08 |
| 4554082 | Fracturing method for stimulation of wells utilizing carbon dioxide based fluids | Marlin D. Holtmyer, Phillip C. Harris | 1985-11-19 |
| 4519455 | Fracturing method for stimulation of wells utilizing carbon dioxide based fluids | Marlin D. Holtmyer, Phillip C. Harris | 1985-05-28 |