Inventor · disambiguated record
John M. Michaels
Also filed as: MICHAELS JOHN M · MICHAELS JOHN MARK
22 granted patents·1,945 citations·filing 1975–2008
97Inventor score
Top patents by PatentIndex Score
22 records- 0196US6581455B1Modified formation testing apparatus with borehole grippers and method of formation testingBAKER HUGHES INC·Filed 2000·Granted Jun 24, 2003·193 cites·19 claims
- 0294US6609568B2Closed-loop drawdown apparatus and method for in-situ analysis of formation fluidsBAKER HUGHES INC·Filed 2001·Granted Aug 26, 2003·144 cites·29 claims
- 0394US6585045B2Formation testing while drilling apparatus with axially and spirally mounted portsBAKER HUGHES INC·Filed 2001·Granted Jul 1, 2003·153 cites·17 claims
- 0493US5473939AMethod and apparatus for pressure, volume, and temperature measurement and characterization of subsurface formationsWESTERN ATLAS INT INC·Filed 1993·Granted Dec 12, 1995·197 cites·29 claims
- 0593US5377755AMethod and apparatus for acquiring and processing subsurface samples of connate fluidWESTERN ATLAS INT INC·Filed 1994·Granted Jan 3, 1995·194 cites·24 claims
- 0693US5303775AMethod and apparatus for acquiring and processing subsurface samples of connate fluidWESTERN ATLAS INT INC·Filed 1992·Granted Apr 19, 1994·197 cites·15 claims
- 0789US4507957AApparatus for testing earth formationsDRESSER IND·Filed 1983·Granted Apr 2, 1985·89 cites·16 claims
- 0889US4025425APurification apparatusDRESSER IND·Filed 1975·Granted May 24, 1977·51 cites·18 claims
- 0988US5635631ADetermining fluid properties from pressure, volume and temperature measurements made by electric wireline formation testing toolsWESTERN ATLAS INT INC·Filed 1995·Granted Jun 3, 1997·158 cites·6 claims
- 1087US7621325B2Dual piston, single phase sampling mechanism and procedureBAKER HUGHES INC·Filed 2007·Granted Nov 24, 2009·27 cites·18 claims
- 1187US6478096B1Apparatus and method for formation testing while drilling with minimum system volumeBAKER HUGHES INC·Filed 2000·Granted Nov 12, 2002·71 cites·24 claims
- 1286US7346460B2Downhole PV tests for bubble point pressureBAKER HUGHES INC·Filed 2004·Granted Mar 18, 2008·26 cites·29 claims
- 1382US7905286B2Method and apparatus for sealing a hole made with a cased hole formation testerBAKER HUGHES INC·Filed 2008·Granted Mar 15, 2011·20 cites·21 claims
- 1482US4132649AGasket arrangement for purification apparatusDRESSER IND·Filed 1977·Granted Jan 2, 1979·39 cites·6 claims
- 1581US4576715AMembrane pack and method of makingDRESSER IND·Filed 1981·Granted Mar 18, 1986·39 cites·10 claims
- 1680US5549159AFormation testing method and apparatus using multiple radially-segmented fluid probesWESTERN ATLAS INT INC·Filed 1995·Granted Aug 27, 1996·96 cites·20 claims
- 1777US5770798AVariable diameter probe for detecting formation damageWESTERN ATLAS INT INC·Filed 1996·Granted Jun 23, 1998·74 cites·28 claims
- 1877US5587525AFormation fluid flow rate determination method and apparatus for electric wireline formation testing toolsWESTERN ATLAS INT INC·Filed 1995·Granted Dec 24, 1996·80 cites·7 claims
- 1974US6640908B2Apparatus and method for formation testing while drilling with minimum system volumeBAKER HUGHES INC·Filed 2002·Granted Nov 4, 2003·36 cites·12 claims
- 2070US8118099B2Method and apparatus for forming and sealing a hole in a sidewall of a boreholeMOODY MICHAEL J·Filed 2008·Granted Feb 21, 2012·13 cites·20 claims
- 2163US7246664B2Dual piston, single phase sampling mechanism and procedureBAKER HUGHES INC·Filed 2002·Granted Jul 24, 2007·23 cites·20 claims
- 2247US5549162AElectric wireline formation testing tool having temperature stabilized sample tankWESTERN ATLAS INT INC·Filed 1995·Granted Aug 27, 1996·25 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →