Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803346 | Anti-accretion additives for drilling fluids | Louise Bailey | 2004-10-12 |
| 6177396 | Aqueous based surfactant compositions | Richard M. CLAPPERTON, John R. Goulding, Ian Guthrie, William P. Haslop, Edward T. Messenger +2 more | 2001-01-23 |
| 6166095 | Method of preparing a drilling fluid comprising structured surfactants | Edward Bryan, William J. Nicholson | 2000-12-26 |
| 6090762 | Aqueous based surfactant compositions | Richard M. CLAPPERTON, John R. Goulding, Ian Guthrie, William P. Haslop, Edward T. Messenger +2 more | 2000-07-18 |
| 5964692 | Functional fluids and liquid cleaning compositions and suspending media | Michael Blezard, Michael John Williams, William J. Nicholson, Edward T. Messenger, John Hawkins | 1999-10-12 |
| 5807810 | Functional fluids and liquid cleaning compositions and suspending media | Michael Blezard, Michael John Williams, William J. Nicholson, Edward T. Messenger | 1998-09-15 |