Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11118445 | Selectively skipping transceivers to enhance communication quality and speed | Zeke Shashoua, Dalmo Massaru Wakabayashi, Gregory Thomas Werkheiser, Kevin D. Fink | 2021-09-14 |
| 4636934 | Well valve control system | Kenneth L. Schwendemann, Oliver W. McCracken, Larry C. Wortham | 1987-01-13 |
| 4448216 | Subsurface safety valve | Steven C. Speegle, Kenneth L. Schwendemann, Michael B. Vinzant, Robert W. Crow | 1984-05-15 |