Patents by Inventor Steven Cohen

Steven Cohen 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: 20180051114
    Abstract: Oligomers of certain glyceride compounds are generally disclosed herein. In some embodiments, the glyceride compounds include natural oil glycerides, such as glycerides derived from natural oils, such as palm oil, soybean oil, canola oil, and the like. Compositions containing such glyceride oligomers are also disclosed herein. Processes for making such glyceride oligomers are also disclosed herein. In some embodiments, the processes for making such compounds include reacting a plurality of unsaturated glyceride compounds in the presence of a metathesis catalyst.
    Type: Application
    Filed: August 18, 2016
    Publication date: February 22, 2018
    Applicant: Elevance Renewable Sciences, Inc.
    Inventors: Steven A. Cohen, Thomas E. Snead
  • Publication number: 20180044597
    Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.
    Type: Application
    Filed: July 6, 2017
    Publication date: February 15, 2018
    Applicant: Elevance Renewable Sciences, Inc.
    Inventors: Steven A. Cohen, Melvin L. Luetkens, JR., Chander Balakrishnan, Robert Snyder
  • Patent number: 9890348
    Abstract: A metathesized natural oil composition comprising (i) a mixture olefins and/or esters, or (ii) a metathesized natural oil, is disclosed. The metathesized natural oil composition has a number average molecular weight in the range from about 100 g/mol to about 150,000 g/mol, a weight average molecular weight in the range from about 1,000 g/mol to about 100,000 g/mol, a z-average molecular weight in the range from about 5,000 g/mol to about 1,000,000 g/mol, and a polydispersity index of about 1 to about 20. The metathesized natural oil composition is metathesized at least once.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: February 13, 2018
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Steven A. Cohen, M. Michelle Morie-Bebel, Alexander D. Ilseman, Benjamin Bergmann, Stephen A. DiBiase, S. Alexander Christensen
  • Publication number: 20180016519
    Abstract: Methods for making specialty chemical products and chemical intermediates using hydroformylation are generally disclosed. Further, compositions and compounds formed using such methods are also disclosed. In some embodiments, methods are disclosed for refining a renewably sourced material, such as a natural oil, to form compositions, which can be further reacted employing the methods disclosed herein to form certain specialty chemical products or chemical intermediates.
    Type: Application
    Filed: June 27, 2017
    Publication date: January 18, 2018
    Applicant: Elevance Renewable Sciences, Inc.
    Inventors: Thomas E. Snead, Demond L. Gildon, Steven A. Cohen, Leslie V. Beltran, Robin Weitkamp
  • Publication number: 20170349531
    Abstract: Dibasic esters (diesters) and their use in plasticizer compositions are generally disclosed. In some embodiments, the diesters are branched-chain esters of long-chain alkanedioic acids, such as octadecanedioic acid. In some embodiments, such plasticizer compositions are used to increase the plasticity of a polymer resin, such as a vinyl chloride resin or poly vinyl butyral. In some other embodiments, such plasticizer compositions are used to lower the glass transition temperature of a polymer resin. In some embodiments, at least a portion of the plasticizer is derived from a renewable source, such as a natural oil.
    Type: Application
    Filed: April 28, 2017
    Publication date: December 7, 2017
    Applicant: Elevance Renewable Sciences, Inc.
    Inventors: Tessa Pals, Steven A. Cohen, Thomas E. Snead, Allyson Beuhler, Paul A. Bertin
  • Patent number: 9789203
    Abstract: The present invention relates to anti-cKIT antibodies, antibody fragments, antibody drug conjugates, and their uses for the treatment of cancer.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 17, 2017
    Assignee: Novartis AG
    Inventors: Tinya Abrams, Steven Cohen, Christie P. Fanton, Catrin Finner, Thomas Huber, Kathy Miller, Siew Ho Schleyer, Kathrin Ulrike Tissot-Daguette
  • Patent number: 9738853
    Abstract: Methods for making specialty chemical products and chemical intermediates using hydroformylation are generally disclosed. Further, compositions and compounds formed using such methods are also disclosed. In some embodiments, methods are disclosed for refining a renewably sourced material, such as a natural oil, to form compositions, which can be further reacted employing the methods disclosed herein to form certain specialty chemical products or chemical intermediates.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: August 22, 2017
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Thomas E. Snead, Demond L. Gildon, Steven A. Cohen, Leslie V. Beltran, Robin Weitkamp
  • Patent number: 9732282
    Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: August 15, 2017
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder
  • Publication number: 20170183289
    Abstract: Methods of carrying out metathesis reactions of natural oil-derived polyenes (e.g., dienes and trienes), including functionalized polyenes, are generally disclosed herein. In some embodiments, the dienes or trienes contain a terminal carbon-carbon double bond, and the metathesis reaction is selective toward reaction of the terminal carbon-carbon double bonds in the polyene. Compounds made by such methods are also generally disclosed herein.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 29, 2017
    Applicant: Elevance Renewable Sciences, Inc.
    Inventors: Keith M. Wampler, Jane Uy, Steven A. Cohen
  • Patent number: 9670132
    Abstract: Dibasic esters (diesters) and their use in plasticizer compositions are generally disclosed. In some embodiments, the diesters are branched-chain esters of long-chain alkanedioic acids, such as octadecanedioic acid. In some embodiments, such plasticizer compositions are used to increase the plasticity of a polymer resin, such as a vinyl chloride resin or poly vinyl butyral. In some other embodiments, such plasticizer compositions are used to lower the glass transition temperature of a polymer resin. In some embodiments, at least a portion of the plasticizer is derived from a renewable source, such as a natural oil.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: June 6, 2017
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Tessa Pals, Steven A. Cohen, Thomas E. Snead, Allyson Beuhler, Paul A. Bertin
  • Patent number: 9643989
    Abstract: A method for preparing a ruthenium carbene complex precursor includes reacting a ruthenium refinery salt with a hydrogen halide to form a ruthenium intermediate, and reacting the ruthenium intermediate with an L-type ligand to form the ruthenium carbene complex precursor. A method for preparing a ruthenium vinylcarbene complex includes converting a ruthenium carbene complex precursor into a ruthenium hydrido halide complex, and reacting the ruthenium hydrido halide complex with a propargyl halide to form the ruthenium vinylcarbene complex. A method for preparing a ruthenium carbene complex includes converting a ruthenium carbene complex precursor into a ruthenium carbene complex having a structure (PR1R2R3)2Cl2Ru?CH—R4, wherein R1, R2, R3, and R4 are alike or different, and wherein covalent bonds may optionally exist between two or more of R1, R2, and R3.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: May 9, 2017
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Linda A. Kunz, Steven A. Cohen, Melvin L. Luetkens, Jr.
  • Patent number: 9637510
    Abstract: A method for preparing a ruthenium carbene complex precursor includes reacting a ruthenium refinery salt with a hydrogen halide to form a ruthenium intermediate, and reacting the ruthenium intermediate with an L-type ligand to form the ruthenium carbene complex precursor. A method for preparing a ruthenium vinylcarbene complex includes converting a ruthenium carbene complex precursor into a ruthenium hydrido halide complex, and reacting the ruthenium hydrido halide complex with a propargyl halide to form the ruthenium vinylcarbene complex. A method for preparing a ruthenium carbene complex includes converting a ruthenium carbene complex precursor into a ruthenium carbene complex having a structure (PR1R2R3)2Cl2Ru?CH—R4, wherein R1, R2, R3, and R4 are alike or different, and wherein covalent bonds may optionally exist between two or more of R1, R2, and R3 and/or two of R1, R2, and R3 taken together may optionally form a ring with phosphorous.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: May 2, 2017
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Linda A. Kunz, Steven A. Cohen
  • Publication number: 20170114084
    Abstract: Methods of preparing ruthenium carbene complex precursors are disclosed herein. In some embodiments, the methods include reacting a ruthenium refinery salt with an L-type ligand and a reducing agent to form the ruthenium carbene complex precursor. Methods of preparing a ruthenium vinylcarbene complex are also disclosed. In some embodiments, preparing a ruthenium carbene complex includes converting a ruthenium carbene complex precursor into a ruthenium carbene complex having a structure (PR1R2R3)2Cl2Ru?CH—R4, wherein R1, R2, R3, and R4 are defined herein.
    Type: Application
    Filed: October 26, 2016
    Publication date: April 27, 2017
    Applicant: Elevance Renewable Sciences, Inc.
    Inventors: Linda A. Kunz, Steven A. Cohen
  • Publication number: 20170096383
    Abstract: High-purity dibasic acid compositions are generally disclosed. In some embodiments, the dibasic acid compositions are solutions or suspensions. In some other embodiments, the compositions are solid-state compositions. In some such embodiments, the solid-state compositions include a dibasic acid as a crystalline solid and further include a low quantity of certain impurities, such as monobasic acids, various esters, and the like. Methods and systems for making such high-purity dibasic acid compositions are also disclosed.
    Type: Application
    Filed: October 7, 2016
    Publication date: April 6, 2017
    Applicant: Elevance Renewable Sciences, Inc.
    Inventors: Alpeshkumar K. Patel, Brian Pease, Bradon J. Dreyer, Yenamandra Viswanath, Brian Albert, Steven A. Cohen, Thomas E. Snead, Demond L. Gildon
  • Publication number: 20170066972
    Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.
    Type: Application
    Filed: September 19, 2016
    Publication date: March 9, 2017
    Applicant: Elevance Renewable Sciences, Inc.
    Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder
  • Publication number: 20170066993
    Abstract: A method for treating a substrate prior to a metathesis reaction includes treating the substrate with a first agent configured to mitigate potentially adverse effects of one or more contaminants in the substrate on a catalyst used to catalyze the metathesis reaction. The treating reduces a level of the one or more contaminants by an amount sufficient to enable the metathesis reaction to proceed at a substrate-to-catalyst molar ratio of at least about 7,500 to 1. Methods for metathesizing substrates are described.
    Type: Application
    Filed: June 16, 2016
    Publication date: March 9, 2017
    Applicant: Elevance Renewable Sciences, Inc.
    Inventors: Keith M. Wampler, Steven A. Cohen, Georg E. Frater, Levente Ondi, Jeno Varga
  • Patent number: 9518002
    Abstract: Methods of carrying out metathesis reactions of natural oil-derived polyenes (e.g., dienes and trienes), including functionalized polyenes, are generally disclosed herein. In some embodiments, the dienes or trienes contain a terminal carbon-carbon double bond, and the metathesis reaction is selective toward reaction of the terminal carbon-carbon double bonds in the polyene. Compounds made by such methods are also generally disclosed herein.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: December 13, 2016
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Keith M. Wampler, Jane Uy, Steven A. Cohen
  • Patent number: 9512157
    Abstract: Methods of preparing ruthenium carbene complex precursors are disclosed herein. In some embodiments, the methods include reacting a ruthenium refinery salt with an L-type ligand and a reducing agent to form the ruthenium carbene complex precursor. Methods of preparing a ruthenium vinylcarbene complex are also disclosed. In some embodiments, preparing a ruthenium carbene complex includes converting a ruthenium carbene complex precursor into a ruthenium carbene complex having a structure (PR1R2R3)2Cl2Ru?CH—R4, wherein R1, R2, R3, and R4 are defined herein.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: December 6, 2016
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Linda A. Kunz, Steven A. Cohen
  • Patent number: 9468480
    Abstract: A method for early stabilizing of distracted connective tissue. A distraction site is at least partially covered with biodegradable, bioerodible or bioresorbable materials before a distraction procedure takes place. Distraction is performed on a connective tissue at the distraction site. The distracted connective tissue is stabilized using the biodegradable, bioerodible or bioresorbable materials.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: October 18, 2016
    Assignee: Medtronic PS Medical, Inc.
    Inventors: Steven Cohen, Ralph Holmes, J Peter Amis, Horst Fichtner
  • Patent number: 9469827
    Abstract: Methods are provided for refining natural oil feedstocks. The methods comprise reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters. In certain embodiments, the methods further comprise separating the olefins from the esters in the metathesized product. In certain embodiments, the methods further comprise hydrogenating the olefins under conditions sufficient to form a fuel composition. In certain embodiments, the methods further comprise transesterifying the esters in the presence of an alcohol to form a transesterified product.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: October 18, 2016
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Steven A. Cohen, Melvin L. Luetkens, Jr., Chander Balakrishnan, Robert Snyder