Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10633943 | Braking devices for drilling operations, and systems and methods of using same | Christopher L. Drenth, George Iondov | 2020-04-28 |
| 10053973 | Braking devices for drilling operations, and systems and methods of using same | Christopher L. Drenth, George Iondov | 2018-08-21 |
| 6153050 | Method and system for controlling the addition of bleaching reagents to obtain a substantially constant percentage of pulp delignification across the first bleaching/delignifying stage | Patrick Jean-Claude Tessier, Martin William Pudlas | 2000-11-28 |