Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7188673 | Process for reducing the production of water in oil wells | Maria Andrei, Thomas P. Lockhart, Giovanni Burrafato, Giuseppe Maddinelli | 2007-03-13 |
| 7004253 | Process for reducing the production of water in oil wells | Maria Andrei, Thomas P. Lockhart, Giovanni Burrafato, Giuseppe Maddinelli | 2006-02-28 |