Issued Patents 2017
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9803134 | Acidic aqueous solution containing a chelating agent and the use thereof | James N. Lepage, Johanna Hendrika Bemelaar | 2017-10-31 |
| 9745509 | Process to treat subterranean formations using a chelating agent | Hisham Nasr-El-Din, Mohammed Sayed, Estevao De Oliveira Barra | 2017-08-29 |
| 9725643 | Foam or viscosified composition containing a chelating agent | Hisham Nasr-El-Din, Edwin Rudolf Antony Bang, Guanqun Wang, Josef Johannes Maria Baltussen, Conrardus Hubertus Joseph Theeuwen +2 more | 2017-08-08 |
| 9587171 | Ammonium salts of chelating agents and their use in oil and gas field applications | James N. Lepage, Hisham Nasr-El-Din, Mohamed Ahmed Nasr-El-Din Mahmoud, Edwin Rudolf Antony Bang, Noble Thekkemelathethil George | 2017-03-07 |
| 9556378 | Chelating agent precursors, fluids containing them, and their use | James N. Lepage, Johanna Hendrika Bemelaar, Adrianus Maria Reichwein, Axel Carstens, Edwin Rudolf Antony Bang | 2017-01-31 |