Inventor
Douglas J. Murray
Inventor
Humble, TX, US
Overview
Patents· 58 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling71%
Y10TTechnical subjects covered by former us classification10%
F16KValves9%
A47GHousehold or table equipment1%
B08BCleaning in general1%
B62BHand-propelled vehicles, e.g. hand carts or perambulators1%
E06CLadders1%
G09FDisplaying1%
H01FMagnets1%
H04MTelephonic communication1%
PatentTitleYear
9,045,956'Apparatus and methods utilizing nonexplosive energetic materials for downhole applications'20158,939,221'High pressure lock assembly'20158,733,450'Tubular seating system and method of seating a plug'20148,662,187'Permanent magnet linear motor actuated safety valve and method'20148,607,860'Flexible collet anchor assembly with compressive load transfer feature'20138,327,933'Arrangement and method for sending and/or sealing cement at a liner hanger'20128,291,982'Multi-position valve for fracturing and sand control and associated completion methods'20128,171,994'Multi-position valve for fracturing and sand control and associated completion methods'20127,971,646'Multi-position valve for fracturing and sand control and associated completion methods'20117,806,193'Swellable packer with back-up systems'20107,766,089'Packer system and method'20107,703,532'Tubing retrievable injection valve'20107,661,471'Self energized backup system for packer sealing elements'20107,604,062'Electric pressure actuating tool and method'20097,591,312'Completion method for fracturing and gravel packing'20097,552,777'Self-energized downhole tool'20097,552,779'Downhole method using multiple plugs'20097,503,388'Circumferentially loaded slip-type overshot retrieval tool'20097,497,264'Multilateral production apparatus and method'20097,478,678'Time release downhole trigger'20097,395,856'Disappearing plug'20087,392,841'Self boosting packing element'20087,387,158'Self energized packer'20087,367,405'Electric pressure actuating tool and method'20087,325,617'Frac system without intervention'20087,231,980'Self orienting lateral junction system'20077,104,332'Method and apparatus for creating a cemented lateral junction system'20067,066,270'Multilateral reference point sleeve and method of orienting a tool'20066,868,909'Drillable junction joint and method of use'20056,691,777'Self-lubricating swage'20046,679,329'Sand barrier for a level 3 multilateral wellbore junction'20046,640,895'Expandable tubing joint and through-tubing multilateral completion method'20036,619,398'Cement diverter system for multilateral junctions and method for cementing a junction'20036,612,547'Downhole flow control devices'20036,561,279'Method and apparatus for completing a wellbore'20036,535,585'System and method for notification upon successful message delivery'20036,484,800'Downhole flow control devices'20026,450,255'Downhole flow control devices'20026,419,026'Method and apparatus for completing a wellbore'20026,334,486'Downhole flow control devices'20026,260,616'Downhole flow control devices'20016,041,857'Motor drive actuator for downhole flow control devices'20006,012,526'Method for sealing the junctions in multilateral wells'20005,944,108'Method for multi-lateral completion and cementing the juncture with lateral wellbores'19995,906,238'Downhole flow control devices'19995,832,996'Electro hydraulic downhole control device'19985,549,161'Overpull shifting tool'19965,425,424'Casing valve'19955,318,121'Method and apparatus for locating and re-entering one or more horizontal wells using whipstock with sealable bores'19945,318,122'Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells using deformable sealing means'19945,316,084'Well tool with sealing means'19945,156,220'Well tool with sealing means'19924,967,841'Horizontal well circulation tool'19904,949,791'Method and apparatus for securing and releasing continuous tubing in a subterranean well'19904,928,770'Mechanical manipulation tool with hydraulic hammer'19904,917,191'Method and apparatus for selectively shifting a tool member'19904,258,826'Combination stepladder and load lifting apparatus'19814,017,989'Wall frames with interlocking clips'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1981Based in Portland, OR, US· patent location history
1981–2015Patents assigned to MURRAY DOUGLAS J (8)· patent assignee history
1990–2015Patents assigned to BAKER HUGHES INC (55)· patent assignee history
1990Based in Tulsa, OK, US· patent location history
1992–2010Based in Humble, TX, US· patent location history
2009–2015Based in Magnolia, TX, US· patent location history
2012Patents assigned to FAY PETER J (2)· patent assignee history
2012Patents assigned to GAUDETTE SEAN L (2)· patent assignee history
2012–2015Patents assigned to LYNDE GERALD D (2)· patent assignee history
2015Based in Christiansburg, VA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAKER HUGHES INC | 55 | 1990–2015 |
| MURRAY DOUGLAS Jself | 8 | 1981–2015 |
| FAY PETER J | 2 | 2012 |
| GAUDETTE SEAN L | 2 | 2012 |
| LYNDE GERALD D | 2 | 2012–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Humble, Texas, US | 38 | 1992–2010 |
| Magnolia, Texas, US | 12 | 2009–2015 |
| Tulsa, OK, US | 4 | 1990 |
| Portland, OR, US | 2 | 1977–1981 |
| Christiansburg, Virginia, US | 1 | 2015 |