Inventor · disambiguated record
P. Henrik Wallman
Also filed as: WALLMAN P H · WALLMAN P HENRIK
19 granted patents·784 citations·filing 1980–2009
95Inventor score
Top patents by PatentIndex Score
19 records- 0198US6051125ANatural gas-assisted steam electrolyzerUNIV CALIFORNIA·Filed 1998·Granted Apr 18, 2000·200 cites·19 claims
- 0296US5711147APlasma-assisted catalytic reduction systemUNIV CALIFORNIA·Filed 1996·Granted Jan 27, 1998·129 cites·7 claims
- 0392US4736316AMinimum time, optimizing and stabilizing multivariable control method and system using a constraint associated control codeCHEVRON RES·Filed 1986·Granted Apr 5, 1988·90 cites·103 claims
- 0492US4456504AReactor vessel and process for thermally treating a granular solidCHEVRON RES·Filed 1981·Granted Jun 26, 1984·68 cites·7 claims
- 0590US5893267ACatalytic reduction system for oxygen-rich exhaustUNIV CALIFORNIA·Filed 1997·Granted Apr 13, 1999·75 cites·11 claims
- 0689US5715677ADiesel NOx reduction by plasma-regenerated absorbend bedsUNIV CALIFORNIA·Filed 1996·Granted Feb 10, 1998·93 cites·19 claims
- 0786US4507195ACoking contaminated oil shale or tar sand oil on retorted solid finesCHEVRON RES·Filed 1983·Granted Mar 26, 1985·41 cites·8 claims
- 0872US4521292AProcess for improving quality of pyrolysis oil from oil shales and tar sandsCHEVRON RES·Filed 1982·Granted Jun 4, 1985·22 cites·10 claims
- 0968US4385983AProcess for retorting oil shale mixtures with added carbonaceous materialCHEVRON RES·Filed 1981·Granted May 31, 1983·10 cites·12 claims
- 1056US4337120ABaffle system for staged turbulent bedCHEVRON RES·Filed 1980·Granted Jun 29, 1982·12 cites·5 claims
- 1155US4332669AOil shale retorting process with raw shale preheat prior to pyrolysisCHEVRON RES·Filed 1980·Granted Jun 1, 1982·12 cites·8 claims
- 1251US4456525AProcess for coking contaminated pyrolysis oil on heat transfer materialCHEVRON RES·Filed 1983·Granted Jun 26, 1984·10 cites·8 claims
- 1347US4392942AModified staged turbulent bed process for retorting carbon containing solidsCHEVRON RES·Filed 1981·Granted Jul 12, 1983·8 cites·13 claims
- 1442US4495059ASteam recycle used as stripping gas in oil shale retortingCHEVRON RES·Filed 1983·Granted Jan 22, 1985·6 cites·8 claims
- 1541US9127541B2Heater and method for recovering hydrocarbons from underground depositsBURNHAM ALAN K·Filed 2009·Granted Sep 8, 2015·0 cites·16 claims
- 1634US4722783AConditioning of recycle shale in retorting processCHEVRON RES·Filed 1983·Granted Feb 2, 1988·4 cites·8 claims
- 1734US4432861AFeed mixing chute and packed bed for pyrolyzing hydrocarbonaceous solidsCHEVRON RES·Filed 1983·Granted Feb 21, 1984·1 cites·7 claims
- 1832US4448666ARetorting process for hydrocarbonaceous solidsCHEVRON RES·Filed 1982·Granted May 15, 1984·2 cites·7 claims
- 1930US4440623ARecycle classifier for retorting oil shaleCHEVRON RES·Filed 1982·Granted Apr 3, 1984·1 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →