Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644405 | Storable water-microsphere suspensions for use in well cements and methods | Bach Dao | 2003-11-11 |
| 6631766 | Methods, well cement compositions and lightweight additives therefor | Lance E. Brothers, Krista L. Keener, James A. Braden, Bach Dao | 2003-10-14 |
| 6626992 | Environmentally acceptable well cement fluid loss control additives, compositions, and methods | Bach Dao, Mohand Melbouci | 2003-09-30 |
| 6610140 | Delayed thixotropic cement compositions and methods | Bach Dao | 2003-08-26 |
| 6591909 | Whey protein retarder | Bach Dao, Marcel Rietjens | 2003-07-15 |
| 6562122 | Lightweight well cement compositions and methods | Bach Dao, Krishna M. Ravi, Christine Noik, Alain Rivereau | 2003-05-13 |