Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11447637 | Asphalt emulsion composition and method of treating a pavement surface | Glenda Vale, Eric Bauch, Chenthamarkshan Nair, Adam Meyers | 2022-09-20 |
| 5534611 | Sulfonated and carboxylated aminoethylenephosphonic acid and aminobis (methylene) phosphinic acid | David A. Huddleston | 1996-07-09 |
| 5342530 | Clay stabilizer | Carl Wilhelm Aften | 1994-08-30 |
| 5208216 | Acrylamide terpolymer shale stabilizing additive for low viscosity oil and gas drilling operations | C. Darwin Williamson, Dodd W. Fong | 1993-05-04 |
| 5152906 | Clay stabilizing composition for oil and gas well treatment | Carl Wilhelm Aften | 1992-10-06 |
| 5147964 | Method for reducing fluid loss from oilfield cement slurries using vinyl grafted wattle tannin | David A. Huddleston, Charles D. Williamson | 1992-09-15 |
| 5134215 | Method for reducing fluid loss from oilfield cement slurries using vinyl grafted wattle tannin | David A. Huddleston, Charles D. Williamson | 1992-07-28 |
| 5099923 | Clay stabilizing method for oil and gas well treatment | Carl Wilhelm Aften | 1992-03-31 |
| 5032297 | Enzymatically degradable fluid loss additive | Charles D. Williamson, Stephan J. Allenson, David A. Huddleston | 1991-07-16 |
| 5009267 | Method for temporarily reducing permeability of subterranean formations | Charles D. Williamson, Stephan J. Allenson | 1991-04-23 |
| 5009799 | Inorganic acid solution viscosifier and corrosion inhibitor and method | Allen R. Syrinek, Ralph N. Buggs | 1991-04-23 |
| 4997581 | Additive and method for temporarily reducing permeability of subterranean formations | Charles D. Williamson, Stephan J. Allenson | 1991-03-05 |
| 4796703 | Compositions for agglomerating solid contaminants in well fluids and methods for using same | Robert Law | 1989-01-10 |