Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5236036 | Device for delivering corrosion or deposition inhibiting agents into a well by means of an auxiliary delivery tube | Pierre Ungemach, Raymond Lucet | 1993-08-17 |
| 5228509 | Device for protecting wells from corrosion or deposits caused by the nature of the fluid produced or located therein | Pierre Ungemach | 1993-07-20 |