MARKWEST ENERGY PARTNERS L P Active Patents
7 granted patents the USPTO still lists as patented, newest filing first, as the USPTO Open Data Portal records them; the company is the first-named applicant. The application number opens the full record at Patent Center.
- 2018-12-17: Application 16221701; Invention HEAVY COMPRESSOR VALVE LIFTING TOOL AND ASSOCIATED METHODS; Applicant MARKWEST ENERGY PARTNERS, L.P.; Status Patented Case.
- 2018-11-14: Application 16190577; Invention SYSTEM, METHOD, AND APPARATUS FOR DETERMINING AIR EMISSIONS DURING PIG RECEIVER DEPRESSURIZATION; Applicant MARKWEST ENERGY PARTNERS, L.P.; Status Patented Case.
- 2018-10-03: Application 16150454; Invention PIG RAMP, SYSTEM AND METHOD; Applicant MARKWEST ENERGY PARTNERS, L.P.; Status Patented Case.
- 2018-06-08: Application 16003250; Invention SYSTEM, METHOD, AND APPARATUS FOR DETERMINING AIR EMISSIONS DURING PIG RECEIVER DEPRESSURIZATION; Applicant MARKWEST ENERGY PARTNERS, L.P.; Status Patented Case.
| Filed | Application | Invention | Applicant | Status | Granted | Patent | Published as | Inventor name | Inventor country | Examiner |
|---|---|---|---|---|---|---|---|---|---|---|
| 2018-12-17 | 16221701 | HEAVY COMPRESSOR VALVE LIFTING TOOL AND ASSOCIATED METHODS | MARKWEST ENERGY PARTNERS, L.P. | Patented Case | 2019-11-26 | 10486946 | Ernie Wells | United States | TRAVERS, MATTHEW P | |
| 2018-11-14 | 16190577 | SYSTEM, METHOD, AND APPARATUS FOR DETERMINING AIR EMISSIONS DURING PIG RECEIVER DEPRESSURIZATION | MARKWEST ENERGY PARTNERS, L.P. | Patented Case | 2019-04-02 | 10247643 | David Johnsen | United States | LARKIN, DANIEL SEAN | |
| 2018-10-03 | 16150454 | PIG RAMP, SYSTEM AND METHOD | MARKWEST ENERGY PARTNERS, L.P. | Patented Case | 2019-09-10 | 10408377 | Danny Lee Dray Bryan Anthony Crowe David Abraham Fitch William Lee Sprowls John Charles Mollenkopf Dustin Michael Howell | United States United States United States United States United States United States | GUIDOTTI, LAURA COLE | |
| 2018-06-08 | 16003250 | SYSTEM, METHOD, AND APPARATUS FOR DETERMINING AIR EMISSIONS DURING PIG RECEIVER DEPRESSURIZATION | MARKWEST ENERGY PARTNERS, L.P. | Patented Case | 2019-01-01 | 10168255 | David Johnsen | United States | PATEL, HARSHAD R | |
| 2018-05-23 | 15987057 | PIG RAMP, SYSTEM AND METHOD | MARKWEST ENERGY PARTNERS, L.P. | Patented Case | 2019-02-05 | 10197206 | Danny Lee Dray Bryan Anthony Crowe David Abraham Fitch William Lee Sprowls John Charles Mollenkopf Dustin Michael Howell | United States United States United States United States United States United States | GUIDOTTI, LAURA COLE | |
| 2018-02-28 | 15907582 | HEAVY COMPRESSOR VALVE LIFTING TOOL AND ASSOCIATED METHODS | MarkWest Energy Partners, L.P. | Patented Case | 2019-02-05 | 10196243 | Ernie Wells | United States | TRAVERS, MATTHEW P | |
| 2018-02-14 | 15896149 | PIG RAMP, SYSTEM AND METHOD | MarkWest Energy Partners, L.P. | Patented Case | 2018-10-09 | 10094508 | Danny Lee Dray Bryan Anthony Crowe David Abraham Fitch William Lee Sprowls John Charles Mollenkopf Dustin Michael Howell | United States United States United States United States United States United States | GUIDOTTI, LAURA COLE |