Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6706112 | Additives based on hydroxyalkyl guar derivatives for use in mortars and mortars including them | Enrico Sironi, Giampietro Margheritis, Ugo Pfeiffer | 2004-03-16 |
| 6672388 | Process for the cleaning of oil and gas wellbores | William M. McGregor, Dario Fomara, Tullio Pellizzon | 2004-01-06 |