Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10731420 | Indexing drill bit | David R. Hall, Joshua J. Hanson, Jonathan Marshall, John J. Pierce, Yuelin Shen +3 more | 2020-08-04 |
| 10711833 | Hard bearing attachment and alignment systems, apparatus, and techniques | Daniel Manwill, David R. Hall, Jonathan Marshall | 2020-07-14 |
| 10683895 | Systems and devices using hard bearings | David R. Hall, Jonathan Marshall, Daniel Manwill, R. Craig Boswell, Scott Richard Woolston | 2020-06-16 |
| 10578100 | High-pressure pump for use in a high-pressure press | David R. Hall | 2020-03-03 |