Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8531189 | Cement expansion measurement apparatus and method | — | 2013-09-10 |
| 7470321 | Cementing compositions and application thereof to cementing oil wells or the like | Keng Seng Chan | 2008-12-30 |