Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9797226 | Crossover joint for connecting eccentric flow paths to concentric flow paths | Charles S. Yeh, Michael D. Barry, Michael T. Hecker, Pavlin B. Entchev, Patrick C. Hyde | 2017-10-24 |
| 9725989 | Sand control screen having improved reliability | Christian S. Mayer, Charles S. Yeh, David A. Howell, Pavlin B. Entchev, Eric R. Grueschow +6 more | 2017-08-08 |
| 9638012 | Wellbore apparatus and method for sand control using gravel reserve | Charles S. Yeh, Michael D. Barry, Michael T. Hecker | 2017-05-02 |
| 9638013 | Apparatus and methods for well control | Charles S. Yeh, John S. Sladic, Christopher A. Hall, Stephen McNamee | 2017-05-02 |
| 9593559 | Fluid filtering device for a wellbore and method for completing a wellbore | Charles S. Yeh, Ted A. Long, Andrey A. Troshko, Michael D. Barry, Michael T. Hecker +8 more | 2017-03-14 |