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Inventor

Curtis B. Campbell

Inventor
Hercules, CA, US

Overview

51→
Patents
1981–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 51 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C10Mprimary
C10MLubricating compositions29%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions17%
C07CAcyclic or carbocyclic compounds14%
C10LFuels not otherwise provided for13%
C09KMaterials for miscellaneous applications, not provided for elsewhere5%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%
C07GCompounds of unknown constitution3%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%
C10GCracking hydrocarbon oils3%
C11DDetergent compositions3%
PatentTitleYear
10,683,460Ethylene oligomerization process for making hydrocarbon liquids20209,938,473Ethylene oligomerization process for making hydrocarbon liquids20189,803,154'Process for preparing a para-branched alkyl-substituted hydroxyaromatic compound'20179,745,259'Process for preparing alcohol ether sulfates'20179,376,359'Process for preparing a para-linear alkyl-substituted hydroxyaromatic compound'20169,328,309'Solvent extraction for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition'20169,249,091'Post-treated sulfurized salt of an alkyl-substituted hydroxyaromatic composition'20169,249,092'Isomerized alpha olefin sulfonate and method of making the same'20168,993,798'Isomerized alpha olefin sulfonate and method of making the same'20158,778,856'Low temperature performance lubricating oil detergents and method of making the same'20148,772,209'Process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition'20148,704,006'Skewed and middle attached linear chain alkylphenol and method of making the same'20148,664,170'Low temperature performance lubricating oil detergents and method of making the same'20148,486,877'Alkylated hydroxyaromatic compound substantially free of endocrine disruptive chemicals'20138,399,388'Low temperature performance lubricating oil detergents and method of making the same'20138,299,289'Isomerized alpha olefin sulfonate and method of making the same'20128,293,688'Enhanced oil recovery surfactant composition and method of making the same'20128,283,491'Isomerized alpha olefin sulfonate and method of making the same'20128,163,678'Enhanced oil recovery surfactant formulation and method of making the same'20128,076,272'Method of making a synthetic alkylaryl sulfonate'20117,956,022'Low sulfur metal detergent-dispersants'20117,943,796'Lubricating oil additive and lubricating oil composition containing same'20117,770,641'Method for enhancing oil recovery with an improved oil recovery surfactant'20107,435,709'Linear alkylphenol derived detergent substantially free of endocrine disruptive chemicals'20086,670,513'Process for producing alkylated hydroxyl-containing aromatic compounds'20036,551,967'Low overbased alkylaryl sulfonates'20036,410,491'Polyalkenyl sulfonates'20026,368,370'Fuel compositions containing hydroxyalkyl-substituted amines'20026,346,129'Fuel compositions containing hydroxyalkyl-substituted polyamines'20026,337,310'Alkylbenzene from preisomerized NAO usable in LOB and HOB sulfonate'20026,269,881'Oil recovery method for waxy crude oil using alkylaryl sulfonate surfactants derived from alpha-olefins and the alpha-olefin compositions'20015,759,966'High overbased metal sulfurized alkyphenates'19985,434,293'Alkylation of alkyl salicylate using a long chain carbon feed'19955,415,792'Overbased alkylated alkyl salicylates'19955,330,663'Neutral and low overbased alkylphenoxy sulfonate additive compositions'19945,330,664'Neutral and low overbased alkylphenoxy sulfonate additive compositions derived from alkylphenols prepared by reacting an olefin or an alcohol with phenol in the presence of an acidic alkylation catalyst'19945,320,762'Low viscosity Group II metal overbased sulfurized C.sub.12 to C.sub.22 alkylphenate compositions'19945,320,763'Low viscosity group II metal overbased sulfurized C.sub.10 to C.sub.16 alkylphenate compositions'19945,318,710'Low viscosity Group II metal overbased sulfurized C.sub.16 to C.sub.22 alkylphenate compositions'19945,232,616'Lubricating compositions'19934,877,416'Synergistic fuel compositions'19894,696,755'Lubricating oil compositions containing hydroxy polyether polyamines'19874,604,103'Deposit control additives--polyether polyamine ethanes'19864,600,409'Quaternary deposit control additives'19864,581,151'Quaternary deposit control additives'19864,564,372'Quaternary deposit control additives'19864,537,693'Lubricating oil compositions containing methylol polyether amino ethanes'19854,527,996'Deposit control additives - hydroxy polyether polyamines'19854,526,587'Deposit control additives-methylol polyether amino ethanes'19854,438,022'Lubricating oil compositions containing polyether polyamine ethanes'19844,270,930'Clean combustion chamber fuel composition'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1989Patents assigned to CHEVRON RES (11)· patent assignee history
1981Based in Pinole, CA, US· patent location history
1984–1989Based in Rodeo, CA, US· patent location history
1993–1994Patents assigned to CHEVRON RES & TECH (6)· patent assignee history
1993–2020Based in Hercules, CA, US· patent location history
2001–2020Patents assigned to CHEVRON USA INC (6)· patent assignee history
2001Based in Hercuies, CA, US· patent location history
2002–2020Patents assigned to CHEVRON ORONITE CO (26)· patent assignee history
2011–2020Patents assigned to CAMPBELL CURTIS BAY (11)· patent assignee history
2016Based in Contra Costa, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHEVRON ORONITE CO262002–2020
CAMPBELL CURTIS BAYself112011–2020
CHEVRON RES111981–1989
CHEVRON RES & TECH61993–1994
CHEVRON USA INC62001–2020
Locations
LocationPatentsSpan
Hercules, California, US371993–2020
Rodeo, California, US101984–1989
Contra Costa, California, US22016
Hercuies, California, US12001
Pinole, California, US11981