Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10909036 | Management of shared memory using asynchronous invalidation signals | David H. Surman, William C. Neiman, Georgette L. Kurdt, Scott F. Schiffer, Michael L. Greenblatt | 2021-02-02 |
| 7762335 | Switching apparatus between independent control systems for a subsurface safety valve | David Z. Anderson, Darren E. Bane, Alan N. Wagner, John E. Gunnells, Anthony S. Coghill +3 more | 2010-07-27 |
| 7717185 | Lock open and control system access apparatus for a downhole safety valve | David Z. Anderson, Darren E. Bane | 2010-05-18 |