Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6764980 | Coated products and use thereof in oil fields | Christopher I. Bates, Paul Derek Ravenscroft | 2004-07-20 |
| 6581687 | Water-in-oil microemulsions useful for oil field or gas field applications and methods for using the same | Isabelle Vervoort | 2003-06-24 |
| 6380136 | Coated products and use thereof in oil fields | Christopher I. Bates, Paul Derek Ravenscroft | 2002-04-30 |
| 6225263 | Use of oil and gas field chemicals | Stephen Paul Goodwin, James C. Morgan, Nevin John Stewart | 2001-05-01 |
| 6173780 | Process for increasing effectiveness of production chemicals by reducing number of squeezing and shut-in operations required to increase production rate from an oil well | Nevin John Stewart | 2001-01-16 |
| 6148913 | Oil and gas field chemicals | — | 2000-11-21 |
| 5690174 | Oil and gas field chemicals | Richard George Chapman, Stephen Paul Goodwin, Andrew Richard Lucy, Nevin John Stewart | 1997-11-25 |