Inventor · disambiguated record
Paul C. Johnson
Also filed as: JOHNSON PAUL C · JOHNSON PAUL CARR
13 granted patents·766 citations·filing 1990–2004
94Inventor score
Files withSHELL OIL CO13
Top patents by PatentIndex Score
13 records- 0197US5076727AIn situ decontamination of spills and landfills by focussed microwave/radio frequency heating and a closed-loop vapor flushing and vacuum recovery systemSHELL OIL CO·Filed 1990·Granted Dec 31, 1991·161 cites·20 claims
- 0293US5271693AEnhanced deep soil vapor extraction process and apparatus for removing contaminants trapped in or below the water tableSHELL OIL CO·Filed 1992·Granted Dec 21, 1993·92 cites·9 claims
- 0393US5244310AIn-situ soil heating press/vapor extraction systemSHELL OIL CO·Filed 1991·Granted Sep 14, 1993·87 cites·9 claims
- 0490US5114497ASoil decontaminationSHELL OIL CO·Filed 1991·Granted May 19, 1992·92 cites·7 claims
- 0589US5660500AEnhanced deep soil vapor extraction process and apparatus utilizing sheet metal pilingsSHELL OIL CO·Filed 1995·Granted Aug 26, 1997·72 cites·9 claims
- 0686US5221827AHeater blanket for in-situ soil heatingSHELL OIL CO·Filed 1992·Granted Jun 22, 1993·72 cites·20 claims
- 0785US5193934AIn-situ thermal desorption of contaminated surface soilSHELL OIL CO·Filed 1991·Granted Mar 16, 1993·94 cites·17 claims
- 0882US5169263AIn-situ soil decontamination process with sub-surface vapor recoverySHELL OIL CO·Filed 1991·Granted Dec 8, 1992·44 cites·10 claims
- 0978US5233164AModified heater for in situ soil heatingSHELL OIL CO·Filed 1991·Granted Aug 3, 1993·38 cites·10 claims
- 1054US6503395B1Situ method and apparatus for biodegradation of alkyl ethers and tertiary butyl alcoholSHELL OIL CO·Filed 2000·Granted Jan 7, 2003·14 cites·13 claims
- 1135US7255791B2In situ method and apparatus for biodegradation of alkyl ethers and tertiary butyl alcoholSHELL OIL CO·Filed 2004·Granted Aug 14, 2007·0 cites·18 claims
- 1234US6808632B2In situ method and apparatus for biodegradation of alkyl ethers and tertiary butyl alcoholSHELL OIL CO·Filed 2002·Granted Oct 26, 2004·0 cites·3 claims
- 1334US6776910B2In situ method and apparatus for biodegradation of alkyl ethers and tertiary butyl alcoholSHELL OIL CO·Filed 2002·Granted Aug 17, 2004·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →