Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492305 | Method of controlling loss of a subterranean treatment fluid | Thomas R. Sifferman, John M. Swazey, Nina Nguyen, Daniel B. Solarek | 2002-12-10 |
| 6180571 | Fluid loss control additives and subterranean treatment fluids containing the same | Thomas R. Sifferman, John M. Swazey, Nina Nguyen, Daniel B. Solarek | 2001-01-30 |
| 5951910 | Reticulated bacterial cellulose as a rheological modifier for polyol fluid compositions | Thomas R. Sifferman, John M. Swazey, Harold D. Dial, Walter Rakitsky | 1999-09-14 |
| 5876619 | Scleroglucan as a rheological modifier for thermal insulation fluids | John M. Swazey | 1999-03-02 |