Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6446727 | Process for hydraulically fracturing oil and gas wells | Warren Zemlak, Robert D. Thiessen | 2002-09-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6446727 | Process for hydraulically fracturing oil and gas wells | Warren Zemlak, Robert D. Thiessen | 2002-09-10 |