Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312913 | Positional-release mechanism for a downhole tool | William Ryan Sisak, Brian W. Walther | 2025-05-27 |
| 12297929 | Hydraulic trigger for isolation valves | Brian W. Walther | 2025-05-13 |
| 12276352 | Hydraulic trigger with locked spring force | Brian W. Walther, Rannie Dong | 2025-04-15 |
| 12170396 | Systems and methods for tool signal extension | Anthony M. Davis, Matthew J. Halenka, Kegan Markwardt | 2024-12-17 |
| 12025238 | Hydraulic trigger for isolation valves | Brian W. Walther | 2024-07-02 |
| 11952864 | Disengaging piston for linear actuation | Brian W. Walther | 2024-04-09 |
| 11774002 | Hydraulic trigger with locked spring force | Brian W. Walther, Rannie Dong | 2023-10-03 |
| 9995399 | Self-sealing butterfly valve | Tonghu Zhang, Yuanshui Li, Xinguo Chen | 2018-06-12 |
| D778704 | Screwdriver bit | — | 2017-02-14 |
| 9539711 | Bit for removing damaged screws | — | 2017-01-10 |
| D770876 | Screwdriver bit | — | 2016-11-08 |
| 9423438 | Dielectric constant measurement circuit and dielectric constant measurement method | Chii-Wann Lin, Sheng-Yu Peng, Jhih-Hong Lin | 2016-08-23 |
| 8876120 | Connecting rod assembly for connecting a work head | — | 2014-11-04 |
| 8806985 | Reversing device for a ratchet wrench | — | 2014-08-19 |
| D707524 | Screwdriver bit | — | 2014-06-24 |
| D675893 | Ratchet tool | — | 2013-02-12 |
| 8196495 | Versatile tool | — | 2012-06-12 |
| 8157021 | Chisel adapter | — | 2012-04-17 |
| D657214 | Ratchet tool | — | 2012-04-10 |
| D644903 | Screwdriver head | — | 2011-09-13 |
| 7874378 | Vibratory and impact connector for a power tool | — | 2011-01-25 |
| D627207 | Socket holding bracket | — | 2010-11-16 |
| 7814815 | Tool head structure | — | 2010-10-19 |
| 7306396 | Connector structure with a detachable mounting tube | — | 2007-12-11 |