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).

  • Patent number: 10246622
    Abstract: 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: Grant
    Filed: June 4, 2015
    Date of Patent: April 2, 2019
    Assignee: Arteco NV
    Inventors: Sandra G. Claeys, Serge S. Lievens
  • Patent number: 9714471
    Abstract: 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: Grant
    Filed: November 10, 2011
    Date of Patent: July 25, 2017
    Assignee: Arteco nv
    Inventors: Jurgen P. De Kimpe, Serge S. Lievens
  • Publication number: 20170198185
    Abstract: 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: Application
    Filed: November 10, 2011
    Publication date: July 13, 2017
    Applicant: Chevron U.S.A. Inc.
    Inventors: Jurgen P. De Kimpe, Serge S. Lievens
  • Publication number: 20150267101
    Abstract: 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: Application
    Filed: June 4, 2015
    Publication date: September 24, 2015
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Sandra G. CLAEYS, Serge S. LIEVENS
  • Patent number: 9115302
    Abstract: 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: Grant
    Filed: September 5, 2012
    Date of Patent: August 25, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Sandra G. Claeys, Serge S. Lievens
  • Publication number: 20140061529
    Abstract: 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: Application
    Filed: September 5, 2012
    Publication date: March 6, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Sandra G. Claeys, Serge S. Lievens
  • Patent number: 8591762
    Abstract: 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: Grant
    Filed: October 21, 2011
    Date of Patent: November 26, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: Serge S. Lievens, Jurgen P. De Kimpe
  • Publication number: 20130099169
    Abstract: 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: Application
    Filed: November 30, 2011
    Publication date: April 25, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Regis J. Pellet, Sandra G. Claeys, Serge S. Lievens, Douglas P. Hunsicker
  • Publication number: 20130099157
    Abstract: 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: Application
    Filed: October 21, 2011
    Publication date: April 25, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Serge S. Lievens, Jurgen P. De Kimpe
  • Publication number: 20120286197
    Abstract: 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: Application
    Filed: November 10, 2011
    Publication date: November 15, 2012
    Applicant: Chevron U.S.A. Inc.
    Inventors: Jurgen P. De Kimpe, Serge S. Lievens
  • Publication number: 20120286196
    Abstract: 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: Application
    Filed: November 10, 2011
    Publication date: November 15, 2012
    Applicant: Chevron U.S.A. Inc.
    Inventors: Jurgen P. De Kimpe, Serge S. Lievens
  • Publication number: 20120164506
    Abstract: 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: Application
    Filed: December 23, 2010
    Publication date: June 28, 2012
    Applicant: 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
  • Patent number: 8062545
    Abstract: 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: Grant
    Filed: August 9, 2010
    Date of Patent: November 22, 2011
    Assignee: Chevron U.S.A Inc.
    Inventors: Serge S. Lievens, Jurgen P. DeKimpe
  • Patent number: 8062546
    Abstract: 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: Grant
    Filed: July 8, 2010
    Date of Patent: November 22, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventors: Serge S. Lievens, Jurgen P. DeKimpe
  • Patent number: 8057695
    Abstract: 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: Grant
    Filed: August 26, 2010
    Date of Patent: November 15, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventors: Serge S. Lievens, Jurgen P. De Kimpe
  • Publication number: 20110006250
    Abstract: 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: Application
    Filed: August 9, 2010
    Publication date: January 13, 2011
    Inventors: Serge S. Lievens, Jurgen P. DeKimpe
  • Publication number: 20100320415
    Abstract: 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: Application
    Filed: August 26, 2010
    Publication date: December 23, 2010
    Inventors: Serge S. Lievens, Jurgen P. De Kimpe
  • Publication number: 20100283002
    Abstract: 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: Application
    Filed: July 8, 2010
    Publication date: November 11, 2010
    Inventors: Serge S. Lievens, Jurgen P. DeKimpe
  • Publication number: 20100270493
    Abstract: 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: Application
    Filed: April 22, 2009
    Publication date: October 28, 2010
    Inventors: Jurgen P. De Kimpe, Serge S. Lievens
  • Publication number: 20100270494
    Abstract: 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: Application
    Filed: May 27, 2009
    Publication date: October 28, 2010
    Inventors: Jurgen P. De Kimpe, Serge S. Lievens