Inventor · disambiguated record
James J. W. Nahm
Also filed as: NAHM JAMES J W · NAHM JAMES JANG WOO
27 granted patents·2,453 citations·filing 1973–2003
98Inventor score
Top patents by PatentIndex Score
27 records- 0199US5464060AUniversal fluids for drilling and cementing wellsSHELL OIL CO·Filed 1994·Granted Nov 7, 1995·235 cites·8 claims
- 0299US5314022ADilution of drilling fluid in forming cement slurriesSHELL OIL CO·Filed 1992·Granted May 24, 1994·273 cites·30 claims
- 0399US5226961AHigh temperature wellbore cement slurrySHELL OIL CO·Filed 1992·Granted Jul 13, 1993·345 cites·13 claims
- 0498US5213160AMethod for conversion of oil-base mud to oil mud-cementSHELL OIL CO·Filed 1992·Granted May 25, 1993·163 cites·10 claims
- 0597US5476144AConversion of oil-base mud to oil mud-cementSHELL OIL CO·Filed 1994·Granted Dec 19, 1995·107 cites·1 claims
- 0697US5358049AConversion of emulsion mud to cementSHELL OIL CO·Filed 1994·Granted Oct 25, 1994·110 cites·15 claims
- 0796US6557640B1Lubrication and self-cleaning system for expansion mandrelSHELL OIL CO·Filed 2000·Granted May 6, 2003·146 cites·52 claims
- 0896US5305831ABlast furnace slag transition fluidSHELL OIL CO·Filed 1993·Granted Apr 26, 1994·99 cites·20 claims
- 0995US5382290AConversion of oil-base mud to oil mud-cementSHELL OIL CO·Filed 1994·Granted Jan 17, 1995·137 cites·7 claims
- 1095US3956140ADrilling fluidsDRESSER IND·Filed 1973·Granted May 11, 1976·53 cites·56 claims
- 1190US5515921AWater-base mud conversion for high tempratice cementingSHELL OIL CO·Filed 1994·Granted May 14, 1996·120 cites·3 claims
- 1289US6063737AAqueous displacement fluid compositions for use in wellboresSHELL OIL CO·Filed 1997·Granted May 16, 2000·136 cites·35 claims
- 1388US5314031ADirectional drilling plugSHELL OIL CO·Filed 1992·Granted May 24, 1994·63 cites·5 claims
- 1486US5488991AAlumina wellbore cement compositionSHELL OIL CO·Filed 1994·Granted Feb 6, 1996·52 cites·12 claims
- 1586US5307876AMethod to cement a wellbore in the presence of carbon dioxideSHELL OIL CO·Filed 1992·Granted May 3, 1994·60 cites·18 claims
- 1685US5316083ABlast furnace slag spacerSHELL OIL CO·Filed 1992·Granted May 31, 1994·51 cites·20 claims
- 1785US5309999ACement slurry composition and method to cement wellbore casings in salt formationsSHELL OIL CO·Filed 1992·Granted May 10, 1994·39 cites·17 claims
- 1881US7108072B2Lubrication and self-cleaning system for expansion mandrelSHELL OIL CO·Filed 2003·Granted Sep 19, 2006·38 cites·40 claims
- 1980US5277519AWell drilling cuttings disposalSHELL OIL CO·Filed 1992·Granted Jan 11, 1994·31 cites·12 claims
- 2076US5351759ASlag-cement displacement by direct fluid contactSHELL OIL CO·Filed 1992·Granted Oct 4, 1994·37 cites·21 claims
- 2173US5309997AWell fluid for in-situ borehole repairSHELL OIL CO·Filed 1992·Granted May 10, 1994·23 cites·18 claims
- 2271US6085839AMethod of thermally insulating a wellboreSHELL OIL CO·Filed 1998·Granted Jul 11, 2000·28 cites·20 claims
- 2369US5333690ACementing with blast furnace slag using spacerSHELL OIL CO·Filed 1992·Granted Aug 2, 1994·21 cites·19 claims
- 2461US5332040AProcess to cement a casing in a wellboreSHELL OIL CO·Filed 1992·Granted Jul 26, 1994·14 cites·15 claims
- 2560US5330006AOil mud displacement with blast furnace slag/surfactantSHELL OIL CO·Filed 1993·Granted Jul 19, 1994·33 cites·20 claims
- 2654US5370181AAnti gas-migration cementingSHELL OIL CO·Filed 1993·Granted Dec 6, 1994·28 cites·21 claims
- 2750US5275511AMethod for installation of piles in offshore locationsSHELL OIL CO·Filed 1992·Granted Jan 4, 1994·11 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →