Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428914 | Non planar cutting element with non planar interface design and tools incorporating such elements | Ronald K. Eyre, Feng Yu | 2025-09-30 |
| 12270477 | Needle for a choke valve assembly | Frederic Pauchet, Edmund Peter McHugh, J. Daniel Belnap, David Wahlquist, Lynn Belnap +3 more | 2025-04-08 |
| 12078016 | Downhole cutting tool having cutting element with nonplanar face to improve cutting efficiency and durability | Manoj D. Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Lynn Belnap +5 more | 2024-09-03 |
| 11976519 | Ridge shaped element | Feng Yu, Ronald K. Eyre, Douglas G. Marsh | 2024-05-07 |
| D981415 | Handle | — | 2023-03-21 |
| 11578538 | Cutting element with nonplanar face to improve cutting efficiency and durability | Manoj D. Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Lynn Belnap +5 more | 2023-02-14 |
| 11492852 | Mechanical locking of cutting element with carbide matrix | Yahua Bao, John Daniel Belnap, Gregory Caron, Feng Yu, Michael David France +2 more | 2022-11-08 |
| 9021964 | Folding table | — | 2015-05-05 |
| 8091185 | Apparatus for restraining a squeezed CRD blade | — | 2012-01-10 |