Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234183 | Method for removing deposits comprising heavy hydrocarbonaceous materials and finely divided inorganic materials from a flow line using a surfactant composition | Albert F. Chan, William Mark Bohon, David J. Blumer | 2001-05-22 |
| 6130199 | Surfactant composition for cleaning wellbore and oil field surfaces using the surfactant composition | Albert F. Chan, William Mark Bohon, David J. Blumer | 2000-10-10 |
| 6112814 | Method for cleaning wellbore surfaces using coiled tubing with a surfactant composition | Albert F. Chan, William Mark Bohon, David J. Blumer | 2000-09-05 |
| 6090754 | Surfactant blends for well operation | Albert F. Chan | 2000-07-18 |
| 6000412 | Method for cleaning deposits from a tank using a surfactant composition | Albert F. Chan, William Mark Bohon, David J. Blumer, William G. McLelland | 1999-12-14 |
| 5996692 | Surfactant composition and method for cleaning wellbore and oil field surfaces using the surfactant composition | Albert F. Chan, William Mark Bohon, David J. Blumer | 1999-12-07 |
| 5874386 | Method for cleaning drilling fluid solids from a wellbore using a surfactant composition | Albert F. Chan, William Mark Bohon, David J. Blumer | 1999-02-23 |
| 5830831 | Surfactant blends for well operations | Albert F. Chan | 1998-11-03 |