Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34371 | Lightweight proppant for oil and gas wells and methods for making and using same | Paul R. Lemieux | 1993-09-07 |
| 5030603 | Lightweight oil and gas well proppants | Paul R. Lemieux | 1991-07-09 |
| 4977116 | Method for making lightweight proppant for oil and gas wells | Paul R. Lemieux | 1990-12-11 |
| 4921820 | Lightweight proppant for oil and gas wells and methods for making and using same | Paul R. Lemieux | 1990-05-01 |
| 4921821 | Lightweight oil and gas well proppants and methods for making and using same | Paul R. Lemieux | 1990-05-01 |