Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5744428 | Process using gellan as a filtrate reducer for water-based drilling fluids | Jacqueline Lecourtier, Daniel Ballerini, Lionel Choplin | 1998-04-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5744428 | Process using gellan as a filtrate reducer for water-based drilling fluids | Jacqueline Lecourtier, Daniel Ballerini, Lionel Choplin | 1998-04-28 |