Patents by Inventor Jon Lee Howell
Jon Lee Howell 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: 11851602Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: August 23, 2021Date of Patent: December 26, 2023Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Andrew Edward Feiring, Viacheslav A Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C Mouli, Thomas Joseph Leck, Jon Lee Howell
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Publication number: 20210380859Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Applicant: The Chemours Company FC, LLCInventors: Andrew Edward FEIRING, Viacheslav A. Petrov, Barbara Haviland Minor, Mario Joseph Napp, Nandini C. Mouli, Thomas Joseph Leck, Jon Lee Howell
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Patent number: 11130894Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling to apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: December 16, 2019Date of Patent: September 28, 2021Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Andrew Edward Feiring, Viacheslav A. Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Thomas Joseph Leck, Jon Lee Howell
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Publication number: 20200115605Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling to apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: ApplicationFiled: December 16, 2019Publication date: April 16, 2020Applicant: THE CHEMOURS COMPANY FC, LLCInventors: Andrew Edward Feiring, Viacheslav A. Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Thomas Joseph Leck, Jon Lee Howell
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Patent number: 10550302Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: August 29, 2017Date of Patent: February 4, 2020Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Andrew Edward Feiring, Viacheslav A Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Thomas Joseph Leck, Jon Lee Howell
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Patent number: 10093880Abstract: This disclosure relates to a process for extracting a perfluoropolyether. The process involves: (a) contacting a solvent comprising a liquid or supercritical carbon dioxide with a lubricating grease comprising a thickener and the perfluoropolyether in an extraction zone to form an extraction solution comprising an extracted perfluoropolyether; and (b) recovering the extracted perfluoropolyether from the extraction solution; wherein the recovered extracted perfluoropolyether comprises no more than about 2 wt % of the thickener.Type: GrantFiled: December 23, 2014Date of Patent: October 9, 2018Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Keith W. Hutchenson, Sharon Ann Libert, Jon Lee Howell, Xian Liang
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Patent number: 10087393Abstract: This disclosure relates to a process for extracting a perfluoropolyether. The process involves: (a) contacting a solvent comprising a liquid or supercritical carbon dioxide with a lubricating grease comprising a thickener, an extraction aid material, and the perfluoropolyether in an extraction zone to form an extraction solution comprising an extracted perfluoropolyether; and (b) recovering the extracted perfluoropolyether from the extraction solution; wherein the recovered extracted perfluoropolyether comprises no more than about 2 wt % of the thickener.Type: GrantFiled: December 23, 2014Date of Patent: October 2, 2018Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Keith W Hutchenson, Sharon Ann Libert, Jon Lee Howell, Xian Liang, Val Krukonis, Hans Schonemann
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Publication number: 20170362483Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: ApplicationFiled: August 29, 2017Publication date: December 21, 2017Inventors: Andrew Edward Feiring, Viacheslav A. Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Thomas Joseph Leck, Jon Lee Howell
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Patent number: 9777204Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: August 4, 2015Date of Patent: October 3, 2017Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Andrew Edward Feiring, Viacheslav A Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C Mouli, Thomas Joseph Leck, Jon Lee Howell
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Patent number: 9732212Abstract: A composition comprising a mixture of fluoropolyether acids or salts having a number average value of about 800 to about 2500 g/mol. The amount of fluoropolyether acids or salt in the mixture having a molecular weight of not more than 500 g/mol is not more than 50 ppm by weight of the total amount of fluoropolyether acids or salts in the mixture. The amount of fluoropolyether acids or salts in the mixture having a molecular weight of 2500 g/mol or greater is not more than 40% by weight of the total amount of fluoropolyether acids or salts in the mixture. Preferably the fluoropolyether acids or salts comprise an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion and phosphonate. Also disclosed is an aqueous dispersion polymerization process for fluoropolymer manufacture employing polymerization agent comprising the specified mixture of fluoropolyether acids or salts.Type: GrantFiled: February 20, 2015Date of Patent: August 15, 2017Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Paul Douglas Brothers, Subhash Vishnu Gangal, Gregory Allen Chapman, Jon Lee Howell, Adam Paul Smith
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Patent number: 9725456Abstract: The present invention relates to anhydrous tetraalkyl pnictogen perfluoroalkoxy salts and a process to produce anhydrous tetraalkyl pnictogen perfluoroalkoxy salts. The process involves contacting a hydrofluoroether and an amine to produce a tetraalkyl pnictogen perfluoroalkoxy salt in the presence of a solvent. The present invention also relates to processes of preparing fluoroalkyl ether acid fluoride polymers using tetraalkyl pnictogen perfluoroalkoxy salt. The present invention further relates to some novel fluorinated alkyl polyether polymers.Type: GrantFiled: January 10, 2014Date of Patent: August 8, 2017Assignees: THE CHEMOURS COMPANY FC, LLC, TRINITY WESTERN UNIVERSITYInventors: Jon Lee Howell, Chadron Mark Friesen, Benson Jacob Jelier
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Patent number: 9133381Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: August 15, 2013Date of Patent: September 15, 2015Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Andrew Edward Feiring, Viacheslav A Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C Mouli, Thomas Joseph Leck, Jon Lee Howell
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Patent number: 8895681Abstract: Amorphous hydrofluoroolefin telomers are prepared by a free-radical polymerization process conducted at high temperature and pressure in the presence of non-monomeric chain transfer agent.Type: GrantFiled: December 21, 2006Date of Patent: November 25, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Jon Lee Howell, Clay Woodward Jones, Robert Clayton Wheland
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Patent number: 8668791Abstract: The present disclosure relates to compositions comprising at least one fluoroolefin and an effective amount of a stabilizer comprising at least one ascorbic acid, terephthalate, or nitromethane, or mixtures thereof. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: December 7, 2011Date of Patent: March 11, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Thomas J. Leck, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Jon Lee Howell
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Patent number: 8663494Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be a terpene, terpenoid or fullerene; or a mixture of a terpene, terpenoid or fullerene with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: December 14, 2011Date of Patent: March 4, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Jon Lee Howell, Velliyur Nott Mallikarjuna Rao, Thomas J. Leck, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Ekaterina N. Swearingen, Andrew Edward Feiring
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Publication number: 20140020416Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: ApplicationFiled: August 15, 2013Publication date: January 23, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Andrew Edward Feiring, Viacheslav A. Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C Mouli, Thomas Joseph Leck, Jon Lee Howell
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Patent number: 8535556Abstract: The present invention relates to compositions comprising iodotrifluoromethane and an effective amount of at least one stabilizer selected from the group consisting of hindered phenols, thiophosphates, butylated triphenylphosphorothionates, organo phosphates, phosphites, aryl alkyl ethers, terpenes, terpenoids, epoxides, fluorinated epoxides, oxetanes, ascorbic acid, thiols, lactones, thioethers, amines, nitromethane, alkylsilanes, benzophenone derivatives, aryl sulfides, divinyl terephalic acid, diphenyl terephalic acid, ionic liquids, and mixtures thereof. These stabilized iodotrifluoromethane compositions may be useful as working fluids in multiple applications including cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps.Type: GrantFiled: March 26, 2007Date of Patent: September 17, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Thomas J. Leck, Nandini C. Mouli, Jon Lee Howell, Velliyur Nott Mallikarjuna Rao, Andrew Edward Feiring, Viacheslav A. Petrov, Allen Capron Sievert, Mario Joseph Nappa, Barbara Haviland Minor, Ekaterina N. Swearingen, Schmitz Corneille, Deepak Perti
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Patent number: 8535555Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: August 31, 2007Date of Patent: September 17, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Andrew Edward Feiring, Viacheslav A. Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Thomas J. Leck, Jon Lee Howell
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Patent number: 8529786Abstract: The present disclosure relates to compositions comprising at least one fluoroolefin and an effective amount of a stabilizer comprising at least one phosphorus-containing compound selected from the group consisting of thiophosphates, butylated triphenylphosphorothionates, and organophosphates. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: August 31, 2007Date of Patent: September 10, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Thomas J. Leck, Nandini C. Mouli, Barbara Haviland Minor, Mario Joseph Nappa, Jon Lee Howell
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Patent number: 8372486Abstract: Liquid hydrofluorocarbons provide low corrosivity lubrication of metallic surfaces especially at elevated temperatures.Type: GrantFiled: December 17, 2007Date of Patent: February 12, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Gregory A. Bell, Jon Lee Howell, Clay Woodward Jones, Robert Clayton Wheland