Patents by Inventor Serge S. Lievens
Serge S. Lievens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10246622Abstract: It has been found that the chemical reactivity of the metal surface of heat exchangers with coolants in presence of nitrites can be reduced by the addition of additives such as phosphonates or phosphinates. Aluminum, other Group III metals, as well as other metals commonly used in cooling systems, such as those of automobile engines, may thus be effectively protected.Type: GrantFiled: June 4, 2015Date of Patent: April 2, 2019Assignee: Arteco NVInventors: Sandra G. Claeys, Serge S. Lievens
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Patent number: 9714471Abstract: This invention covers a formulation providing protection against corrosion in liquid and vapor phase. Such formulations are used in applications where engine parts or fuel cell systems are subjected to a “running-in” or “hot-test” prior to final assembly or storage. The invention includes a concentrate as well as a dilute solution. The synergistic combination of inorganic ammonium derivatives in combination with monocarboxylic or dicarboxylic acids increases the period of protection. This enables storage for a longer period when the engine parts are shipped or stored prior to assembling. The use of the described invention pre-conditions the metal surface and provides protection even if afterwards the liquid is almost completely removed.Type: GrantFiled: November 10, 2011Date of Patent: July 25, 2017Assignee: Arteco nvInventors: Jurgen P. De Kimpe, Serge S. Lievens
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Publication number: 20170198185Abstract: This invention covers a formulation providing protection against corrosion in liquid and vapor phase. Such formulations are used in applications where engine parts or fuel cell systems are subjected to a “running-in” or “hot-test” prior to final assembly or storage. The invention includes a concentrate as well as a dilute solution. The synergistic combination of inorganic ammonium derivatives in combination with monocarboxylic or dicarboxylic acids increases the period of protection. This enables storage for a longer period when the engine parts are shipped or stored prior to assembling. The use of the described invention pre-conditions the metal surface and provides protection even if afterwards the liquid is almost completely removed.Type: ApplicationFiled: November 10, 2011Publication date: July 13, 2017Applicant: Chevron U.S.A. Inc.Inventors: Jurgen P. De Kimpe, Serge S. Lievens
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Publication number: 20150267101Abstract: It has been found that the chemical reactivity of the metal surface of heat exchangers with coolants in presence of nitrites can be reduced by the addition of additives such as phosphonates or phosphinates. Aluminum, other Group III metals, as well as other metals commonly used in cooling systems, such as those of automobile engines, may thus be effectively protected.Type: ApplicationFiled: June 4, 2015Publication date: September 24, 2015Applicant: CHEVRON U.S.A. INC.Inventors: Sandra G. CLAEYS, Serge S. LIEVENS
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Patent number: 9115302Abstract: It has been found that the chemical reactivity of the metal surface of heat exchangers with coolants in presence of nitrites can be reduced by the addition of additives such as phosphonates or phosphinates. Aluminum, other Group III metals, as well as other metals commonly used in cooling systems, such as those of automobile engines, may thus be effectively protected.Type: GrantFiled: September 5, 2012Date of Patent: August 25, 2015Assignee: Chevron U.S.A. Inc.Inventors: Sandra G. Claeys, Serge S. Lievens
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Publication number: 20140061529Abstract: It has been found that the chemical reactivity of the metal surface of heat exchangers with coolants in presence of nitrites can be reduced by the addition of additives such as phosphonates or phosphinates. Aluminum , other Group III metals, as well as other metals commonly used in cooling systems, such as those of automobile engines, may thus be effectively protected.Type: ApplicationFiled: September 5, 2012Publication date: March 6, 2014Applicant: Chevron U.S.A. Inc.Inventors: Sandra G. Claeys, Serge S. Lievens
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Patent number: 8591762Abstract: The technology of this invention relates to an aqueous heat transfer solution exhibiting enhanced stability as well as thermal conductivity. The solution comprises silicon oxide nanoparticles, to which a freezing point depressant may potentially be added. The solution provides protection against forms of corrosion for use in applications where cooling is critical. The invention also covers the use of a concentrate as well as the dilution made from the concentrate.Type: GrantFiled: October 21, 2011Date of Patent: November 26, 2013Assignee: Chevron U.S.A. Inc.Inventors: Serge S. Lievens, Jurgen P. De Kimpe
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Publication number: 20130099169Abstract: A process for extending the life of coolant fluids by passivating surfaces of components and parts in heat exchanger systems that employ coolants for heat transfer. In the method, heat exchanger parts with metal surfaces which chemically and detrimentally interact with additives in coolant fluids in the heat exchanger system are treated by contacting the metal surfaces with a phosphate-containing solution for the phosphate-containing solution to passivate the metal surface for subsequent contact with the coolant fluids.Type: ApplicationFiled: November 30, 2011Publication date: April 25, 2013Applicant: Chevron U.S.A. Inc.Inventors: Regis J. Pellet, Sandra G. Claeys, Serge S. Lievens, Douglas P. Hunsicker
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Publication number: 20130099157Abstract: The technology of this invention relates to an aqueous heat transfer solution exhibiting enhanced stability as well as thermal conductivity. The solution comprises silicon oxide nanoparticles, to which a freezing point depressant may potentially be added. The solution provides protection against forms of corrosion for use in applications where cooling is critical. The invention also covers the use of a concentrate as well as the dilution made from the concentrate.Type: ApplicationFiled: October 21, 2011Publication date: April 25, 2013Applicant: Chevron U.S.A. Inc.Inventors: Serge S. Lievens, Jurgen P. De Kimpe
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Publication number: 20120286196Abstract: This invention covers a formulation providing protection against corrosion in liquid and vapor phase. Such formulations are used in applications where engine parts or fuel cell systems are subjected to a “running-in” or “hot-test” prior to final assembly or storage. The invention includes a concentrate as well as a dilute solution. The synergistic combination of inorganic ammonium derivatives in combination with monocarboxylic or dicarboxylic acids increases the period of protection. This enables storage for a longer period when the engine parts are shipped or stored prior to assembling. The use of the described invention pre-conditions the metal surface and provides protection even if afterwards the liquid is almost completely removed.Type: ApplicationFiled: November 10, 2011Publication date: November 15, 2012Applicant: Chevron U.S.A. Inc.Inventors: Jurgen P. De Kimpe, Serge S. Lievens
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Publication number: 20120286197Abstract: This invention covers formulation providing protection against corrosion in both the liquid and vapor phase. Such formulations are used in applications where engine parts or fuel cell systems are subjected to a “running-in” or “hot test” prior to final assembly or storage. The invention includes a concentrate as well as a dilute solution. The synergistic combination of inorganic ammonium derivatives in combination with monocarboxylic or dicarboxylic acids and a silicate dramatically increases the period of protection for both ferrous and aluminum alloys. This enables storage for a longer period when the engine parts are shipped or stored prior to assembling.Type: ApplicationFiled: November 10, 2011Publication date: November 15, 2012Applicant: Chevron U.S.A. Inc.Inventors: Jurgen P. De Kimpe, Serge S. Lievens
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Publication number: 20120164506Abstract: Provided is a heat transfer fluid formulation comprising at least one diester or triester species having ester links on adjacent carbons. The formulation exhibits an excellent balance of dielectric and heat transfer properties, and is useful as a coolant for electric vehicles.Type: ApplicationFiled: December 23, 2010Publication date: June 28, 2012Applicant: Chevron U.S.A. Inc.Inventors: Sandra G. Claeys, Serge S. Lievens, Paul Van De Ven, Zhen Zhou, Stephen J. Miller, Ryan J. Schexnaydre, Saleh Elomari
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Patent number: 8062545Abstract: An antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze concentrate composition comprises from 50 to 99.8 wt. % of a glycol-based freezing point depressant selected from the group of: alkylene glycols, glycol monoethers, glycerins, and mixtures thereof; 0.01 to 10 wt. % of at least one of a 2-ethylhexanoic acid, isononanoic acid and 3,5,5-trimethylhexanoic acid; and 0.01 to 5 wt. % of at least one of octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, neodecanoic acid, benzoic acid, 2-hydroxybenzoic acid, p-terbutylbenzoic acid, and mixtures thereof. In one embodiment, the composition is employed as a concentrate in admixture with 10 to 90 wt. % water. In one embodiment no more than one dicarboxylic acid is used as an additive. In another embodiment no dicarboxylic acid is present.Type: GrantFiled: August 9, 2010Date of Patent: November 22, 2011Assignee: Chevron U.S.A Inc.Inventors: Serge S. Lievens, Jurgen P. DeKimpe
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Patent number: 8062546Abstract: A molybdate-free antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze concentrate composition comprises from 50 to 99 wt. % of a glycol-based freezing point depressant selected from the group of: alkylene glycols, glycol monoethers, glycerins, and mixtures thereof; 0.01 to 10 wt. % of at least one of a 2-ethylhexanoic acid, isononanoic acid and 3,5,5-trimethylhexanoic acid; and 0.01 to 5 wt. % of at least one of heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, neodecanoic acid, 2-hydroxybenzoic acid, p-terbutylbenzoic acid, and mixtures thereof. In one embodiment, the composition is employed as a concentrate in admixture with 10 to 90 wt. % water.Type: GrantFiled: July 8, 2010Date of Patent: November 22, 2011Assignee: Chevron U.S.A. Inc.Inventors: Serge S. Lievens, Jurgen P. DeKimpe
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Patent number: 8057695Abstract: A toxicological friendly antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze composition comprises from 5 to 80 wt. % of an aqueous freezing point depressant selected from alkali metal salts of acetates, formates, proprionates, adipiates, and succinates, and mixtures thereof; 0.1 to 10 wt. % of at least one of a 2-ethylhexanoic acid, isononanoic acid and 3,5,5-trimethylhexanoic acid; and 0.1 to 10 wt. % of at least one of octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, neodecanoic acid, benzoic acid, 2-hydroxybenzoic acid, p-terbutylbenzoic acid, and mixtures thereof. In one embodiment, the composition is employed as a concentrate in admixture with 10 to 90 wt. % water. The composition may be totally free of glycol, or, in an alternate embodiment, possess a glycol:non-glycol base ratio of 1:2 to 1:20.Type: GrantFiled: August 26, 2010Date of Patent: November 15, 2011Assignee: Chevron U.S.A. Inc.Inventors: Serge S. Lievens, Jurgen P. De Kimpe
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Publication number: 20110006250Abstract: An antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze concentrate composition comprises from 50 to 99.8 wt. % of a glycol-based freezing point depressant selected from the group of: alkylene glycols, glycol monoethers, glycerins, and mixtures thereof; 0.01 to 10 wt. % of at least one of a 2-ethylhexanoic acid, isononanoic acid and 3,5,5-trimethylhexanoic acid; and 0.01 to 5 wt. % of at least one of octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, neodecanoic acid, benzoic acid, 2-hydroxybenzoic acid, p-terbutylbenzoic acid, and mixtures thereof. In one embodiment, the composition is employed as a concentrate in admixture with 10 to 90 wt. % water. In one embodiment no more than one dicarboxylic acid is used as an additive. In another embodiment no dicarboxylic acid is present.Type: ApplicationFiled: August 9, 2010Publication date: January 13, 2011Inventors: Serge S. Lievens, Jurgen P. DeKimpe
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Publication number: 20100320415Abstract: A toxicological friendly antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze composition comprises from 5 to 80 wt. % of an aqueous freezing point depressant selected from alkali metal salts of acetates, formates, proprionates, adipiates, and succinates, and mixtures thereof; 0.1 to 10 wt. % of at least one of a 2-ethylhexanoic acid, isononanoic acid and 3,5,5-trimethylhexanoic acid; and 0.1 to 10 wt. % of at least one of octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, neodecanoic acid, benzoic acid, 2-hydroxybenzoic acid, p-terbutylbenzoic acid, and mixtures thereof. In one embodiment, the composition is employed as a concentrate in admixture with 10 to 90 wt. % water. The composition may be totally free of glycol, or, in an alternate embodiment, possess a glycol:non-glycol base ratio of 1:2 to 1:20.Type: ApplicationFiled: August 26, 2010Publication date: December 23, 2010Inventors: Serge S. Lievens, Jurgen P. De Kimpe
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Publication number: 20100283002Abstract: A molybdate-free antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze concentrate composition comprises from 50 to 99 wt. % of a glycol-based freezing point depressant selected from the group of: alkylene glycols, glycol monoethers, glycerins, and mixtures thereof; 0.01 to 10 wt. % of at least one of a 2-ethylhexanoic acid, isononanoic acid and 3,5,5-trimethylhexanoic acid; and 0.01 to 5 wt. % of at least one of heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, neodecanoic acid, 2-hydroxybenzoic acid, p-terbutylbenzoic acid, and mixtures thereof. In one embodiment, the composition is employed as a concentrate in admixture with 10 to 90 wt. % water.Type: ApplicationFiled: July 8, 2010Publication date: November 11, 2010Inventors: Serge S. Lievens, Jurgen P. DeKimpe
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Publication number: 20100270494Abstract: This invention relates to a solution that provides protection against forms of corrosion. Such solutions are intended for use in applications where cooling system parts are hot tested or the engine is run-in prior to it being stored and/or assembled in the final vehicle or engine configuration. The invention includes a concentrate as well as a dilute solution made from the concentrate. The synergistic combination of inorganic ammonium derivatives in combination with monocarboxylic or dicarboxylic acids has proven to dramatically increase the period of protection, thus enabling storage for a longer period when the engine parts are shipped or stored prior to assembling. The use of the described invention shows a pre-conditioning of the metal surface and provides protection even if afterwards the liquid is almost completely removed.Type: ApplicationFiled: May 27, 2009Publication date: October 28, 2010Inventors: Jurgen P. De Kimpe, Serge S. Lievens
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Publication number: 20100270493Abstract: The technology of this invention relates to a solution that provides protection against forms of corrosion. Such solutions are intended for use in applications where cooling system parts are hot tested or the engine is run-in prior to it being stored and/or assembled in the final vehicle or engine configuration. The invention covers a concentrate as well as a dilute solution made from the concentrate. The synergistic combination of inorganic ammonium derivatives with monocarboxylic or dicarboxylic acids has proven to dramatically increase the protection time, thus enabling storage for a longer period when the engine parts are shipped or stored prior to assembling. When silicate is added to the above formulation, excellent protection from liquid and vapor corrosion is provided on ferrous liner alloys as well as on aluminum alloys. Aluminum alloys are used in engine heads.Type: ApplicationFiled: April 22, 2009Publication date: October 28, 2010Inventors: Jurgen P. De Kimpe, Serge S. Lievens