Rodney L Cravey from 10802 Leslie Ln, Manvel, TX 77578, age 73, Phone: (281)3317514

Citric Acid Based Emulsifiers For Oilfield Applications Exhibiting Low Fluorescence
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US Patent:

7691960, Apr 6, 2010
Filed:

May 19, 2004
Appl. No.:

10/556021
Inventors:

Rodney Lee Cravey - Manvel TX, US
Assignee:

Akzo Nobel N.V. - Arnhem
International Classification:

C08G 69/08
US Classification:

528310, 507129, 507130
Abstract:

The present invention relates to a composition of citric acid based emulsifiers comprising polyamides for oilfield drilling applications that exhibit very low fluorescence, and to a process for their preparation.

Pour Point Depressant Additives For Oil Compositions
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US Patent:

7942941, May 17, 2011
Filed:

Apr 5, 2005
Appl. No.:

11/547349
Inventors:

Rodney Lee Cravey - Manvel TX, US
Stephen L. Mead - Danbury CT, US
Assignee:

Akzo Nobel N.V. - Arnhem
International Classification:

C10L 1/236
C10M 149/06
US Classification:

44392, 44342, 44346, 44393, 44418, 507 90, 508287, 508468, 508476
Abstract:

The present invention generally relates to oil compositions, primarily to fuel oil and petroleum compositions produced there from susceptible to wax formation at low temperatures, to polymeric amides for use with such fuel oil compositions, and to methods for their manufacture.

Polymeric Imides As Pour Point Depressant Additives For Oil Compositions
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US Patent:

20070173419, Jul 26, 2007
Filed:

Feb 8, 2007
Appl. No.:

11/703972
Inventors:

Stephen Mead - Danbury CT, US
Rodney Cravey - Manvel TX, US
Mohammad Rahman - Pomona NY, US
Assignee:

Akzo Nobel N.V. - Arnhem
International Classification:

C10M 169/04
US Classification:

508287000
Abstract:

The present invention generally relates to oil compositions, primarily to fuel oil and petroleum compositions produced there from susceptible to wax formation at low temperatures, to polymeric imides for use with such fuel oil compositions, and to methods for their manufacture.

Polymeric Imides As Pour Point Depressant Additives For Oil Compositions
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US Patent:

20130219775, Aug 29, 2013
Filed:

Mar 18, 2013
Appl. No.:

13/846110
Inventors:

Rodney Lee Cravey - Manvel TX, US
Mohammad Abdur Rahman - Pomona NY, US
Assignee:

AKZO NOBEL N.V. - Arnhem
International Classification:

C10L 10/16
C10L 1/232
US Classification:

44347, 548547
Abstract:

The present invention generally relates to oil compositions, primarily to fuel oil and petroleum compositions produced there from susceptible to wax formation at low temperatures, to polymeric imides for use with such fuel oil compositions, and to methods for their manufacture.

Alkoxylated Alkyl Substituted Phenol Sulfonates Compounds And Compositions, The Preparation Thereof And Their Use In Various Applications
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US Patent:

50493116, Sep 17, 1991
Filed:

Dec 12, 1990
Appl. No.:

7/626382
Inventors:

Khalid Rasheed - Missouri City TX
Rodney Cravey - Manvel TX
Paul D. Berger - Missouri City TX
Edwin O'Brien - Rosharon TX
Assignee:

Witco Corporation - New York NY
International Classification:

C23F 1110
US Classification:

25238952
Abstract:

The present invention relates to novel compounds of the formula ##STR1## wherein R. sub. 1 is an alkyl group, M. sup. + is a cation, R. sub. 2 is an alkylene oxide and n is an integer from 1 to 4. Surfactant compositions containing these novel compounds, the process of preparing these novel compounds as well as the methods of using these surfactant compounds in enhanced oil recovery, as emulsifiers, in emulsion polymerization, as hydrotropes, in foamed drilling fluids, as dye carriers, as textile detergents, as foaming agents for concrete formation and as fiber lubricants are also disclosed.

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Rodney Cravey Rodney Cravey Robin Cravey Robin Cravey Robin Cravey

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Rodney L Cravey