Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252570 | Core-shell flow improver | Wayne R. Dreher, Kenneth W. Smith, Timothy L. Burden, William F. Harris, Ray L. Johnston +3 more | 2025-03-18 |
| 12187956 | Low glass transition temperature polymer latex drag reducing agent | — | 2025-01-07 |
| 11692119 | Low glass transition temperature polymer latex drag reducing agent | — | 2023-07-04 |
| 11453627 | Method of increasing alpha-olefin content | — | 2022-09-27 |
| 11084969 | Low glass transition temperature polymer latex drag reducing agent | — | 2021-08-10 |
| 11028210 | Core-shell flow improver | Wayne R. Dreher, Kenneth W. Smith, Timothy L. Burden, William F. Harris, Ray L. Johnston +3 more | 2021-06-08 |
| 10633306 | Method of increasing alpha-olefin content | — | 2020-04-28 |
| 10370502 | Disperse non-polyalphaolefin drag reducing polymers | Timothy L. Burden, Ray L. Johnston, William F. Harris, Kenneth W. Smith, Wayne R. Dreher | 2019-08-06 |
| 9783644 | Disperse non-polyalphaolefin drag reducing polymers | Timothy L. Burden, Ray L. Johnston, William F. Harris, Kenneth W. Smith, Wayne R. Dreher | 2017-10-10 |
| 9784414 | Drag reduction of asphaltenic crude oils | Zhiyi Bao, Michael Olechnowicz, Ray L. Johnston, Timothy L. Burden, Kenneth W. Smith +2 more | 2017-10-10 |
| 9676878 | Monomer selection to prepare ultra high molecular weight drag reducer polymer | Zhiyi Bao, Michael Olechnowicz | 2017-06-13 |
| 8916626 | Drag reducing copolymers for cold fluid applications | — | 2014-12-23 |
| 8450251 | Drag reduction of asphaltenic crude oils | Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris | 2013-05-28 |
| 8450250 | Drag reduction of asphaltenic crude oils | Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris | 2013-05-28 |
| 8450249 | Drag reduction of asphaltenic crude oils | Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris | 2013-05-28 |
| 8426498 | Drag reduction of asphaltenic crude oils | Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris | 2013-04-23 |
| 8022118 | Drag reduction of asphaltenic crude oils | Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris | 2011-09-20 |
| 7888407 | Disperse non-polyalphaolefin drag reducing polymers | Timothy L. Burden, Ray L. Johnston, William F. Harris, Kenneth W. Smith, Wayne R. Dreher | 2011-02-15 |
| 7842738 | High polymer content hybrid drag reducers | William F. Harris, Timothy L. Burden | 2010-11-30 |
| 7763671 | Modified latex drag reducer and processes therefor and therewith | William F. Harris, Kenneth W. Smith, Ray L. Johnston, Vincent S. Anderson | 2010-07-27 |
| 7361628 | Remote delivery of latex drag-reducing agent without introduction of immiscible low-viscosity flow facilitator | William F. Harris, Kenneth W. Smith, Timothy L. Burden, Ray L. Johnston, Vincent S. Anderson | 2008-04-22 |
| 7285582 | Modified latex drag reducer and processes therefor and therewith | William F. Harris, Kenneth W. Smith, Ray L. Johnston, Vincent S. Anderson | 2007-10-23 |
| 6939902 | Drag-reducing polymer suspensions | Kenneth W. Smith, Ray L. Johnston | 2005-09-06 |
| 6596832 | Polymer compositions useful as flow improvers in cold fluids | Ray L. Johnston | 2003-07-22 |
| 6576732 | Drag-reducing polymers and drag-reducing polymer suspensions and solutions | Kenneth W. Smith | 2003-06-10 |