Patents by Inventor Deepak Dugar

Deepak Dugar 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).

  • Publication number: 20260159663
    Abstract: Described herein are solvents and co-solvents comprising anhydromevalonolactone (aMVL) and various industrial applications for such solvents. aMVL has a number of advantageous properties for use in solvent, including high boiling point, low melting point, low viscosity, non-flammability, water solubility, exceptionally low volatility, and excellent solvation capability. Exemplary industrial applications for solvents comprising aMVL include polymer manufacturing, polymer recycling, mold production, fiber production, membrane manufacturing, thermosetting paint manufacturing, coating manufacturing, coating removal, paint strippers, cleaning products, degreasing products, nitrile synthesis, alkylation, production of syngas, carbon-carbon cross-coupling reactions, metal organic framework synthesis, halogenation reactions, formation of pharmaceuticals, formation of fungicides and/or herbicides, seed treatment products, bioregulators, and electrolytes in batteries or capacitors.
    Type: Application
    Filed: April 15, 2025
    Publication date: June 11, 2026
    Inventors: Deepak Dugar, Mustafa J. Bootwala, Cecelia A. Rivera, Chance Plaskett
  • Patent number: 12600835
    Abstract: Described herein are solvents and co-solvents comprising anhydromevalonolactone (aMVL) and various industrial applications for such solvents. aMVL has a number of advantageous properties for use in solvent, including high boiling point, low melting point, low viscosity, non-flammability, water solubility, exceptionally low volatility, and excellent solvation capability. Exemplary industrial applications for solvents comprising aMVL include polymer manufacturing, polymer recycling, mold production, fiber production, membrane manufacturing, thermosetting paint manufacturing, coating manufacturing, coating removal, paint strippers, cleaning products, degreasing products, nitrile synthesis, alkylation, production of syngas, carbon-carbon cross-coupling reactions, metal organic framework synthesis, halogenation reactions, formation of pharmaceuticals, formation of fungicides and/or herbicides, seed treatment products, bioregulators, and electrolytes in batteries or capacitors.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: April 14, 2026
    Assignee: Visolis, Inc.
    Inventors: Deepak Dugar, Mustafa J. Bootwala, Cecelia Rivera, Chance Plaskett
  • Publication number: 20260092228
    Abstract: The invention provides a composition used for fuel blending made by a process for reacting a reactant mixture at a reaction temperature to form the composition, wherein the reactant mixture comprises a first compound; a heat transfer fluid; and at least one stabilizer. The composition made from the reactant mixture is found to be substantially free of C7 hydrocarbons. The invention also provides a fuel composition comprising the composition of the invention.
    Type: Application
    Filed: July 27, 2025
    Publication date: April 2, 2026
    Inventors: Deepak DUGAR, Shylesh Sankaranarayanapilla
  • Publication number: 20260092130
    Abstract: The invention is related to a process for synthesizing a polymer composition. The process comprises providing a reactant mixture for conducting multistep reactions to produce products with high selectivity and yields. The reactant mixture comprises a first reactant composition comprising at least one precursor compound for conversion to a hydrocarbon molecule with at least one carbon carbon double bond; a heat transfer fluid; and at least one stabilizer. The process then involves reacting the first reactant composition in the presence of a heat transfer agent, following by purification to provide a monomer composition. The monomer composition may then be optionally fractionated. Then, the monomer composition is polymerized to provide the final polymer composition.
    Type: Application
    Filed: July 27, 2025
    Publication date: April 2, 2026
    Inventors: Deepak DUGAR, Shylesh Sankaranarayanapilla
  • Publication number: 20260092023
    Abstract: The invention is related to a process for synthesizing a sustainable aviation fuel composition. The process comprises providing a reaction mixture comprising a first compound that is at least one of mevalonolactone, mevalonic acid, mevalonate salt, dehydromevalonic acid, dehydromevalonate salt, dehydromevalonolactone or combinations thereof. The process then involves converting the first compound in the reaction mixture to provide a first intermediate comprising isoprene. Then, the isoprene in the first intermediate is reacted in the presence of a first heat transfer agent to provide a second intermediate comprising terpenes. Finally, the second intermediate is allowed to react in the presence of a second heat transfer agent, or alternatively in neat conditions, and optionally in presence of a catalyst to provide the sustainable fuel composition.
    Type: Application
    Filed: July 27, 2025
    Publication date: April 2, 2026
    Inventors: Deepak DUGAR, Shylesh Sankaranarayanapilla
  • Publication number: 20260055330
    Abstract: The invention is related to a process for synthesizing a sustainable aviation fuel composition. The process comprises providing a reaction mixture comprising a first compound that is at least one of mevalonolactone, mevalonic acid, mevalonate salt, dehydromevalonic acid, dehydromevalonate salt, levulinic acid, levulinate salt, caproic acid, caprolactone, caproate salt, or combinations thereof. The process then involves converting the first compound in the reaction mixture to provide a first intermediate comprising isoprene. Then, the isoprene in the first intermediate is reacted in the presence of a first heat transfer agent to provide a second intermediate comprising terpenes. Finally, the second intermediate is allowed to react to in the presence of a second heat transfer agent, or alternatively in neat conditions, and optionally in presence of a catalyst to provide the sustainable aviation fuel composition.
    Type: Application
    Filed: July 27, 2025
    Publication date: February 26, 2026
    Inventors: Deepak DUGAR, Shylesh Sankaranarayanapilla
  • Publication number: 20260028433
    Abstract: The invention is related to a process for synthesizing a polymer for various uses including as a tackifying composition. The process comprises providing a reactant mixture for conducting multistep reactions to produce products with high selectivity and yields. The reactant mixture comprises a first compound comprising at least one carbon-carbon double bond or a precursor therefor; a heat transfer fluid; and at least one stabilizer. The process comprises reacting the first compound or the precursor with a first intermediate mixture in the presence of a heat transfer agent to provide a monomer composition. Optionally the obtained monomer composition may be fractionated. Then, the process involves polymerising one or more fractions of the monomer composition to provide the polymer composition that can be tuned to be tackifying or longer chain.
    Type: Application
    Filed: July 27, 2025
    Publication date: January 29, 2026
    Inventors: Deepak DUGAR, Shylesh Sankaranarayanapilla
  • Publication number: 20260028539
    Abstract: The invention provides a reactant mixture for conducting multistep reactions to produce products with high selectivity and yields. The mixture comprises a first compound comprising at least one carbon-carbon double bond or a precursor therefor; a heat transfer fluid; and at least one stabilizer. The reactant mixture has been found to enable synthesis of target compounds with high selectivity and yields, and improves catalyst performance by reduced coke formation. Thus, reactions spanning longer periods of time can be run, and the reagents can be recycled a number of times without compromising on yields and selectivity.
    Type: Application
    Filed: July 27, 2025
    Publication date: January 29, 2026
    Inventors: Deepak DUGAR, Shylesh Sankaranarayanapilla
  • Publication number: 20260028540
    Abstract: The invention is related to a process for synthesizing a sustainable aviation fuel composition. The process comprises providing a first intermediate mixture comprising a first compound that comprises at least one carbon-carbon double bond; followed by reacting the first compound in the first intermediate mixture in the presence of a first heat transfer agent to provide a second intermediate. Finally, the second intermediate is allowed to react in the presence of a second heat transfer agent, or alternatively in neat conditions, and optionally in presence of a catalyst to provide the sustainable fuel composition. The sustainable aviation fuel composition made available from the process of the invention is found to comprise monocyclic aromatic hydrocarbons (MAHs) at useful concentration ranges (along with cycloalkanes) while they are substantially devoid of Polycyclic aromatic hydrocarbons (PAHs).
    Type: Application
    Filed: July 27, 2025
    Publication date: January 29, 2026
    Inventors: Deepak DUGAR, Shylesh Sankaranarayanapilla
  • Publication number: 20260028545
    Abstract: The invention is related to a sustainable aviation fuel composition that comprises monocyclic aromatic hydrocarbons (MAHs) and substantially devoid of polycyclic aromatic hydrocarbons (PAHs). In some embodiments, the MAHs are present in a concentration ranging from about 1% by volume to about 25% by volume; and the PAHs are present in a concentration ranging from about 0% by volume to about 5% by volume. The renewable content as indicated by the Carbon-12 to Carbon-14 isotope ratio is at least about 10%. The sustainable aviation fuel is also substantially devoid of sulfur content. Other properties such as freezing point, lower heating value, seal swelling properties, and the like are consistent as required for any typical aviation fuel.
    Type: Application
    Filed: July 27, 2025
    Publication date: January 29, 2026
    Inventors: Deepak DUGAR, Shylesh Sankaranarayanapilla
  • Publication number: 20260015481
    Abstract: Described herein are solvents and co-solvents comprising anhydromevalonolactone (aMVL) and various industrial applications for such solvents. aMVL has a number of advantageous properties for use in solvent, including high boiling point, low melting point, low viscosity, non-flammability, water solubility, exceptionally low volatility, and excellent solvation capability. Exemplary industrial applications for solvents comprising aMVL include polymer manufacturing, polymer recycling, mold production, fiber production, membrane manufacturing, thermosetting paint manufacturing, coating manufacturing, coating removal, paint strippers, cleaning products, degreasing products, nitrile synthesis, alkylation, production of syngas, carbon-carbon cross-coupling reactions, metal organic framework synthesis, halogenation reactions, formation of pharmaceuticals, formation of fungicides and/or herbicides, seed treatment products, bioregulators, and electrolytes in batteries or capacitors.
    Type: Application
    Filed: September 24, 2025
    Publication date: January 15, 2026
    Inventors: Deepak Dugar, Mustafa J. Bootwala, Cecelia Rivera, Chance Plaskett
  • Patent number: 12226379
    Abstract: Formulations containing biologically-produced, high-purity R-mevalonolactone are provided for modulating the expression of genes and metabolism related to epidermal turnover, hyaluronic acid synthesis, barrier function, anti-aging elasticity, extracellular matrix degradation, inflammation, stress, and pigmentation in human skin. The biologically-produced, high-purity R-mevalonolactone may be used as an ingredient in pharmaceutical, food, or cosmetic products and may be applied topically or ingested for modulation of gene expression and metabolism.
    Type: Grant
    Filed: February 8, 2023
    Date of Patent: February 18, 2025
    Assignee: VISOLIS, INC.
    Inventor: Deepak Dugar
  • Publication number: 20240218117
    Abstract: Described herein polymer precursor compounds (aka polymer building blocks) of derived from biobased compounds, and specifically biobased mevalonolactone and its related derivatives. Through oxidation these biobased precursors can be reacted to yield building blocks for (unsaturated-) polyesters, polyester polyols and polyamides, as well as precursors for glycidyl esters and omega-alkenyl esters. Through reduction, these biobased precursors can be reacted to yield building blocks for (unsaturated-) polyesters, polyester polyols, polycarbonates, as well as precursors for glycidyl ethers and omega-alkenyl ethers. Through nucleophilic ring opening and/or amidation, these biobased precursors can be reacted to yield building blocks for polyester polyols, chain-extender for polyurethanes, or polyester-amides.
    Type: Application
    Filed: March 19, 2024
    Publication date: July 4, 2024
    Inventors: Deepak Dugar, Tobias Friedberger
  • Publication number: 20230248677
    Abstract: Formulations containing biologically-produced, high-purity R-mevalonolactone are provided for modulating the expression of genes and metabolism related to epidermal turnover, hyaluronic acid synthesis, barrier function, anti-aging elasticity, extracellular matrix degradation, inflammation, stress, and pigmentation in human skin. The biologically-produced, high-purity R-mevalonolactone may be used as an ingredient in pharmaceutical, food, or cosmetic products and may be applied topically or ingested for modulation of gene expression and metabolism.
    Type: Application
    Filed: February 8, 2023
    Publication date: August 10, 2023
    Inventor: Deepak Dugar
  • Patent number: 11492339
    Abstract: A process is provided for converting mevalonic acid into various useful products and derivatives. More particularly, the process comprises reacting mevalonic acid, or a solution comprising mevalonic acid, in the presence of a solid catalyst at an elevated temperature and pressure to thereby form various biobased products. The process may also comprise: (a) providing a microbial organism that expresses a biosynthetic mevalonic acid pathway; (b) growing the microbial organism in fermentation medium comprising suitable carbon substrates, whereby biobased mevalonic acid is produced; and (c) reacting the biobased mevalonic acid in the presence of a solid catalyst at an elevated temperature and pressure to yield various biobased products.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: November 8, 2022
    Assignee: Visolis, Inc.
    Inventors: Deepak Dugar, Brian Neltner
  • Publication number: 20220010091
    Abstract: Described herein are solvents and co-solvents comprising anhydromevalonolactone (aMVL) and various industrial applications for such solvents. aMVL has a number of advantageous properties for use in solvent, including high boiling point, low melting point, low viscosity, non-flammability, water solubility, exceptionally low volatility, and excellent solvation capability. Exemplary industrial applications for solvents comprising aMVL include polymer manufacturing, polymer recycling, mold production, fiber production, membrane manufacturing, thermosetting paint manufacturing, coating manufacturing, coating removal, paint strippers, cleaning products, degreasing products, nitrile synthesis, alkylation, production of syngas, carbon-carbon cross-coupling reactions, metal organic framework synthesis, halogenation reactions, formation of pharmaceuticals, formation of fungicides and/or herbicides, seed treatment products, bioregulators, and electrolytes in batteries or capacitors.
    Type: Application
    Filed: November 8, 2019
    Publication date: January 13, 2022
    Inventors: Deepak Dugar, Mustafa J. Bootwala, Cecelia Rivera, Chance Plaskett
  • Publication number: 20210078966
    Abstract: A process is provided for converting mevalonic acid into various useful products and derivatives. More particularly, the process comprises reacting mevalonic acid, or a solution comprising mevalonic acid, in the presence of a solid catalyst at an elevated temperature and pressure to thereby form various biobased products. The process may also comprise: (a) providing a microbial organism that expresses a biosynthetic mevalonic acid pathway; (b) growing the microbial organism in fermentation medium comprising suitable carbon substrates, whereby biobased mevalonic acid is produced; and (c) reacting the biobased mevalonic acid in the presence of a solid catalyst at an elevated temperature and pressure to yield various biobased products.
    Type: Application
    Filed: September 18, 2020
    Publication date: March 18, 2021
    Inventors: Deepak Dugar, Brian Neltner
  • Publication number: 20200369827
    Abstract: Described herein polymer precursor compounds (aka polymer building blocks) of derived from biobased compounds, and specifically biobased mevalonolactone and its related derivatives. Through oxidation these biobased precursors can be reacted to yield building blocks for (unsaturated-) polyesters, polyester polyols and polyamides, as well as precursors for glycidyl esters and omega-alkenyl esters. Through reduction, these biobased precursors can be reacted to yield building blocks for (unsaturated-) polyesters, polyester polyols, polycarbonates, as well as precursors for glycidyl ethers and omega-alkenyl ethers. Through nucleophilic ring opening and/or amidation, these biobased precursors can be reacted to yield building blocks for polyester polyols, chain-extender for polyurethanes, or polyester-amides.
    Type: Application
    Filed: August 14, 2020
    Publication date: November 26, 2020
    Inventors: Deepak Dugar, Tobias Friedberger
  • Patent number: 10807963
    Abstract: A process is provided for converting mevalonic acid into various useful products and derivatives. More particularly, the process comprises reacting mevalonic acid, or a solution comprising mevalonic acid, in the presence of a solid catalyst at an elevated temperature and pressure to thereby form various biobased products. The process may also comprise: (a) providing a microbial organism that expresses a biosynthetic mevalonic acid pathway; (b) growing the microbial organism in fermentation medium comprising suitable carbon substrates, whereby biobased mevalonic acid is produced; and (c) reacting the biobased mevalonic acid in the presence of a solid catalyst at an elevated temperature and pressure to yield various biobased products.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: October 20, 2020
    Assignee: Visolis, Inc.
    Inventors: Deepak Dugar, Brian Neltner
  • Publication number: 20190169153
    Abstract: The invention relates to a process comprising reacting mevalonic acid, or a solution comprising mevalonic acid, to yield a first product or first product mixture, optionally in the presence of a solid catalyst and/or at elevated temperature and/or pressure. The invention further relates to a process comprising: (a) providing a microbial organism that expresses a biosynthetic mevalonic acid pathway; (b) growing the microbial organism in fermentation medium comprising suitable carbon substrates, whereby biobased mevalonic acid is produced; and (c) reacting said biobased mevalonic acid to yield a first product or first product mixture.
    Type: Application
    Filed: February 18, 2019
    Publication date: June 6, 2019
    Inventors: Deepak Dugar, Brian Neltner