Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9725973 | Methods and processes to recycle base oil fluids from spent invert emulsion drilling fluids | Yerzhan Ayapbergenov, Timothy N. Harvey | 2017-08-08 |
| 9677354 | Methods and processes to recycle base oil fluids from spent invert emulsion drilling fluids | Yerzhan Ayapbergenov, Timothy N. Harvey | 2017-06-13 |