Inventor · disambiguated record
Gregory S. Hewgill
Also filed as: HEWGILL GREGORY · HEWGILL GREGORY S
8 granted patents·306 citations·filing 1985–2014
90Inventor score
Top patents by PatentIndex Score
8 records- 0193US4787453APermeability stabilization in subterranean formations containing particulate matterUNION OIL CO·Filed 1986·Granted Nov 29, 1988·98 cites·29 claims
- 0286US4708207AScale removal treatmentUNION OIL CO·Filed 1985·Granted Nov 24, 1987·46 cites·25 claims
- 0385US4646835AAcidizing methodUNION OIL CO·Filed 1985·Granted Mar 3, 1987·56 cites·25 claims
- 0478US5051197AScale removal treatmentUNION OIL CO·Filed 1990·Granted Sep 24, 1991·37 cites·16 claims
- 0575US5105887AEnhanced oil recovery technique using hydrogen precursorsUNION OIL CO·Filed 1991·Granted Apr 21, 1992·39 cites·19 claims
- 0671US8986461B2De-carbonizing process for combustion component cleaningILLINOIS TOOL WORKS·Filed 2014·Granted Mar 24, 2015·4 cites·14 claims
- 0766US4992182AScale removal treatmentUNION OIL CO·Filed 1989·Granted Feb 12, 1991·16 cites·30 claims
- 0851US5039434AAcidizing composition comprising organosilicon compoundUNION OIL CO·Filed 1990·Granted Aug 13, 1991·10 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →