Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6465587 | Polymeric fluid loss additives and method of use thereof | Keith A. Bair, Fu Chen, Teng-Shau Young, De-Kai Loo | 2002-10-15 |
| 6405801 | Environmentally acceptable well cement fluid loss control additives, compositions and methods | Jan Pieter Vijn, Bach Dao | 2002-06-18 |