Markel; Daniel C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Markel; Daniel C..The latest application filed is for "cathodically-protected plug assembly".
- Markel; Daniel C. - Pearland TX
- Markel; Daniel C. - Orchard Park NY
- Markel; Daniel C. - West Seneca NY
- Markel; Daniel C. - Houston TX
| Patent | Date |
|---|---|
| Downhole plug assembly Grant 10,648,263 - Markel , et al. | 2020-05-12 |
| Downhole Plug Assembly App 20180171744 - Markel; Daniel C. ; et al. | 2018-06-21 |
| Cathodically-protected Plug Assembly App 20180171743 - Markel; Daniel C. ; et al. | 2018-06-21 |
| METHOD FOR PRODUCING 2-CHLORO-3,3,3,-TRIFLUOROPROPENE (HCFC-1233xf) App 20130197282 - Markel; Daniel C. ; et al. | 2013-08-01 |
| Azeotrope-Like Composition of 2-Chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and Hydrogen Fluoride (HF) App 20090211988 - Pham; Hang T. ; et al. | 2009-08-27 |
| Perforating gun Grant 7,413,015 - McKinnon , et al. August 19, 2 | 2008-08-19 |
| Magnetic locator systems and methods of use at a well site Grant 7,347,261 - Markel , et al. March 25, 2 | 2008-03-25 |
| High-pressure explosive retention device Grant 7,197,985 - Markel , et al. April 3, 2 | 2007-04-03 |
| Magnetic Locator Systems and Methods of Use at a Well Site App 20070051512 - Markel; Daniel C. ; et al. | 2007-03-08 |
| Perforating Gun App 20070044968 - McKinnon; Russell ; et al. | 2007-03-01 |
| Flame and Heat Resistant Oilfield Tools App 20050247450 - Ratanasirigulchai, Wanchai ; et al. | 2005-11-10 |
| High-Pressure Explosive Retention Device App 20050178550 - Markel, Daniel C. ; et al. | 2005-08-18 |
| Perforating gun carriers and their methods of manufacture Grant 6,702,039 - Parrott , et al. March 9, 2 | 2004-03-09 |
| Multi-directional gun carrier method and apparatus Grant 6,591,911 - Markel , et al. July 15, 2 | 2003-07-15 |
| Components and methods for use with explosives Grant 6,554,081 - Brooks , et al. April 29, 2 | 2003-04-29 |
| Perforating gun carriers and their methods of manufacture App 20030029639 - Parrott, Robert A. ; et al. | 2003-02-13 |
| Shaped charge capsule Grant 6,453,817 - Markel , et al. September 24, 2 | 2002-09-24 |
| Shock barriers for explosives Grant 6,386,109 - Brooks , et al. May 14, 2 | 2002-05-14 |
| Phased perforating guns Grant 5,816,343 - Markel , et al. October 6, 1 | 1998-10-06 |
| Transfer apparatus adapted for transferring an explosive train through an externally pressurized secondary explosive bulkhead Grant 5,123,356 - Brooks , et al. June 23, 1 | 1992-06-23 |
| Through tubing perforating gun including a plurality of phased capsule charges mounted on a retrievable base strip via a plurality of shatterable support rings Grant 5,095,999 - Markel March 17, 1 | 1992-03-17 |
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