Inventor
Michael W. Holcombe
Inventor
Houston, TX, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling50%
H04BTransmission12%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure8%
G01VGeophysics8%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges4%
F16LPipes4%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy4%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
7,336,199'Inductive coupling system'20086,414,905'Method and apparatus for communicating coded messages in a wellbore'20026,273,189'Downhole tractor'20016,269,883'Disconnect tool'20016,021,095'Method and apparatus for remote control of wellbore end devices'20005,959,547'Well control systems employing downhole network'19995,856,790'Remote control for a plug-dropping head'19995,839,508'Downhole apparatus for generating electrical power in a well'19985,833,002'Remote control plug-dropping head'19985,590,713'Remote control for well tool'19975,579,283'Method and apparatus for communicating coded messages in a wellbore'19965,558,153'Method & apparatus for actuating a downhole tool'19965,516,603'Flexible battery pack'19965,435,390'Remote control for a plug-dropping head'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2002Patents assigned to BAKER HUGHES INC (11)· patent assignee history
1995–2008Based in Houston, TX, US· patent location history
1996–2000Based in Katy, TX, US· patent location history
2001–2008Patents assigned to HALLIBURTON ENERGY SERV INC (3)· patent assignee history
2001Based in Spring, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAKER HUGHES INC | 11 | 1995–2002 |
| HALLIBURTON ENERGY SERV INC | 3 | 2001–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 7 | 1995–2008 |
| Katy, Texas, US | 6 | 1996–2000 |
| Spring, Texas, US | 1 | 2001 |