Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8022118 | Drag reduction of asphaltenic crude oils | Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith | 2011-09-20 |
| 7888407 | Disperse non-polyalphaolefin drag reducing polymers | Timothy L. Burden, Ray L. Johnston, Kenneth W. Smith, Wayne R. Dreher, Stuart N. Milligan | 2011-02-15 |