Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12330186 | Continuous mixers and methods of using the same | Anthony Paul Haddock | 2025-06-17 |
| 11760924 | Proppant with enhanced interparticle bonding | Robert Ray McDaniel, Avis Lloyd McCrary, Ralph Edward Barthel | 2023-09-19 |
| 11208591 | Hydrophobic coating of particulates for enhanced well productivity | Magnus Legemah, Neomi Nishith Sanghrajka, Anthony Paul Haddock | 2021-12-28 |
| 11098242 | Proppant with enhanced interparticle bonding | Robert Ray McDaniel, Avis Lloyd McCrary, Ralph Edward Barthel | 2021-08-24 |
| 10696896 | Durable coatings and uses thereof | Yu-Chin Li | 2020-06-30 |
| 10590337 | High performance proppants | Yu-Chin Li, Jada Shuchen Leung | 2020-03-17 |
| 10544358 | Coated and cured proppants | Robert Ray McDaniel, Avis Lloyd McCrary, Ralph Edward Barthel | 2020-01-28 |
| 10208242 | Proppant with polyurea-type coating | Avis Lloyd McCrary, Robert Ray McDaniel, Ralph Edward Barthel | 2019-02-19 |
| 10100247 | Proppant with enhanced interparticle bonding | Robert Ray McDaniel, Avis Lloyd McCrary, Ralph Edward Barthel | 2018-10-16 |
| 9862881 | Hydrophobic coating of particulates for enhanced well productivity | Kerry Drake, Amr Radwan, Anthony Paul Haddock, Robert Ray McDaniel, Andrew F. Nordquist | 2018-01-09 |
| 9725645 | Proppant with composite coating | Avis Lloyd McCrary, Robert Ray McDaniel, Ralph Edward Barthel | 2017-08-08 |
| 9518214 | Proppant with polyurea-type coating | Avis Lloyd McCrary, Robert Ray McDaniel, Ralph Edward Barthel | 2016-12-13 |
| 9290690 | Coated and cured proppants | Robert Ray McDaniel, Avis Lloyd McCrary, Ralph Edward Barthel | 2016-03-22 |