Patents by Inventor Sergey A. Selifonov

Sergey A. Selifonov 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: 9206275
    Abstract: The present disclosure relates to the preparation of acrylate, alkacrylate, allyl, and polycarbonate derivatives of hydroxy ketal esters, and uses thereof.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: December 8, 2015
    Assignee: SEGETIS, INC.
    Inventors: Sergey Selifonov, Brian Daniel Mullen, Douglas Alan Wicks, Vivek Badarinarayana
  • Publication number: 20150291567
    Abstract: The present disclosure relates to the preparation of ketal compounds from polyols and oxocarboxylates, and uses thereof.
    Type: Application
    Filed: June 22, 2015
    Publication date: October 15, 2015
    Inventors: Sergey Selifonov, Adam Edward Goetz, Feng Jing
  • Publication number: 20150175568
    Abstract: Disclosed herein are ketal amide compounds. The ketal amide compounds are synthesized by the reaction of ketal acids or ketal esters with amine functional compounds. Also disclosed are methodologies useful to make the ketal amide compounds. Also disclosed herein are formulations and articles containing the ketal amide compounds.
    Type: Application
    Filed: March 3, 2015
    Publication date: June 25, 2015
    Inventors: Sergey SELIFONOV, Adam E. GOETZ, Marc D. SCHOLTEN, Ning ZHOU
  • Patent number: 8969559
    Abstract: Disclosed herein are ketal amide compounds. The ketal amide compounds are synthesized by the reaction of ketal acids or ketal esters with amine functional compounds. Also disclosed are methodologies useful to make the ketal amide compounds. Also disclosed herein are formulations and articles containing the ketal amide compounds.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: March 3, 2015
    Assignee: Segetis, Inc.
    Inventors: Sergey Selifonov, Adam E. Goetz, Marc D. Scholten, Ning Zhou
  • Patent number: 8906961
    Abstract: The present disclosure relates to the preparation of ketal compounds from glycerol and levulinic acid and esters, and uses thereof, in particular the manufacture of polyurethanes.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: December 9, 2014
    Assignee: Segetis, Inc.
    Inventor: Sergey Selifonov
  • Patent number: 8889890
    Abstract: A ketal ester of an oxocarboxylic acid and a process to make the same, where the ketal ester is of Structure (I): wherein a is 0 or an integer from 1 to 12; n is 0 or 1; R1 is a linear alkyl, aryl, arylalkylene, or branched alkyl group with 1-18 carbon atoms; R2 and R5 can be hydrogen, C1-6 straight chain or branched alkyl, phenyl, substituted phenyl, C1-6 alkyl substituted with up to four OH groups, C1-6 alkyl, or acetyl optionally substituted hydrocarbon radicals, or R2 and R4 together with the ?-carbon form a cycloaliphatic or heterocyclic ring with 3-6 carbon atoms and 0-3 heteroatoms, provided that only one of R2 and R5 is hydrogen; R3 is a linear alkyl or branched alkyl group with 1-18 carbon atoms; and R4 is hydrogen, or an alkyl, aryl, aralkyl or branched alkyl group with 1-10 carbon atoms.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: November 18, 2014
    Assignee: Segetis, Inc.
    Inventors: Douglas A. Wicks, Sergey Selifonov, Marc Davis Scholten
  • Publication number: 20140163127
    Abstract: The present disclosure relates to the preparation of acrylate, alkacrylate, allyl, and polycarbonate derivatives of hydroxy ketal esters, and uses thereof.
    Type: Application
    Filed: November 1, 2013
    Publication date: June 12, 2014
    Applicant: SEGETIS, INC.
    Inventors: Sergey SELIFONOV, Brian Daniel MULLEN, Douglas Alan WICKS, Vivek BADARINARAYANA
  • Publication number: 20140135455
    Abstract: The present disclosure relates to the preparation of ketal compounds from polyols and oxocarboxylates, and uses thereof.
    Type: Application
    Filed: January 20, 2014
    Publication date: May 15, 2014
    Applicant: SEGETIS, INC.
    Inventors: Sergey Selifonov, Adam Edward Goetz, Feng Jing
  • Patent number: 8686169
    Abstract: The present disclosure relates to methods of preparation of compounds resulting from the reaction of levulinic esters and epoxidized unsaturated fatty acid esters. The compounds are useful as renewable biomass-based plasticizers for a variety of polymers. Mono-, di- and tri-ketal adducts formed in a reaction between alkyl esters of levulinate and epoxidized unsaturated fatty acid esters derived from vegetable oils are also disclosed.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 1, 2014
    Assignee: Segetis, Inc.
    Inventor: Sergey Selifonov
  • Patent number: 8653223
    Abstract: Ketal compounds of the structure I and a method of preparation of the compound from polyols and oxocarboxylates, as well as uses thereof.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: February 18, 2014
    Assignee: Segetis, Inc.
    Inventors: Sergey Selifonov, Adam Edward Goetz, Feng Jing
  • Patent number: 8604223
    Abstract: The reaction of alcohols with oxocarboxylates to form acetals or ketals is catalyzed by unexpectedly low levels of protic acids. By employing low acid catalyst levels compared to amounts conventionally used, rapid formation of acetal or ketal is facilitated while the formation of oxocarboxylate esters is minimized. Further employing a significant molar excess of oxocarboxylate in conjunction with low acid catalyst level gives rise to the rapid and clean formation of acetals and ketals from oxocarboxylates and alcohols.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: December 10, 2013
    Assignee: Segetis, Inc.
    Inventors: Sergey Selifonov, Scott D. Rothstein, Brian D. Mullen
  • Patent number: 8604077
    Abstract: Novel ketal compounds can be made from an oxocarboxylate and a triol. Novel polymeric structures are, in turn, synthesized from the ketal compounds. Such ketal compounds and associated polymers are useful in a broad range of applications as a substitute for materials derived from petroleum or other such nonrenewable resources.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: December 10, 2013
    Assignee: Segetis, Inc.
    Inventors: Douglas Alan Wicks, Charles Todd Williams, Sergey A. Selifonov
  • Patent number: 8589085
    Abstract: In particular, this invention provides novel methods of populating data structures for use in evolutionary modeling. In particular, this invention provides methods of populating a data structure with a plurality of character strings. The methods involve encoding two or more biological molecules into character strings to provide a collection of two or more different initial character strings; selecting at least two substrings from the pool of character strings; concatenating the substrings to form one or more product strings about the same length as one or more of the initial character strings; adding the product strings to a collection of strings; and optionally repeating this process using one or more of the product strings as an initial string in the collection of initial character strings.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: November 19, 2013
    Assignee: Codexis Mayflower Holdings, LLC
    Inventors: Sergey A. Selifonov, Willem P. C. Stemmer
  • Publication number: 20130303648
    Abstract: The present disclosure relates to the preparation of ketal compounds from glycerol and levulinic acid and esters, and uses thereof, in particular the manufacture of polyurethanes.
    Type: Application
    Filed: July 15, 2013
    Publication date: November 14, 2013
    Inventor: Sergey Selifonov
  • Patent number: 8575367
    Abstract: The present disclosure relates to the preparation of acrylate, alkacrylate, allyl, and polycarbonate derivatives of hydroxy ketal esters, and uses thereof.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: November 5, 2013
    Assignee: Segetis, Inc.
    Inventors: Sergey Selifonov, Brian Daniel Mullen, Douglas Alan Wicks, Vivek Badarinarayana
  • Patent number: 8575371
    Abstract: Glyceryl ether compounds prepared by the reaction of glycerol and olefin epoxides are disclosed. The compounds are renewable biomass-based surfactants useful as detergents and emulsifiers in formulations for cleaning, laundry, personal care, cosmetics, and industrial uses.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: November 5, 2013
    Assignee: Segetis, Inc.
    Inventor: Sergey Selifonov
  • Patent number: 8569523
    Abstract: The reaction of alcohols with oxocarboxylates to form acetals or ketals is catalyzed by unexpectedly low levels of protic acids. By employing low acid catalyst levels compared to amounts conventionally used, rapid formation of acetal or ketal is facilitated while the formation of oxocarboxylate esters is minimized. Further employing a significant molar excess of oxocarboxylate in conjunction with low acid catalyst level gives rise to the rapid and clean formation of acetals and ketals from oxocarboxylates and alcohols.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: October 29, 2013
    Assignee: Segetis, Inc.
    Inventors: Sergey Selifonov, Scott D. Rothstein, Brian D. Mullen
  • Patent number: 8546519
    Abstract: The invention relates to polyketal compounds. The compounds are synthesized by the selective ketalization of oxocarboxylic acids, e.g. keto acids and semialdehydes, and esters thereof with tetrols and higher polyols that products two or more cyclic ketal ester moieties per molecule, wherein the cyclic ketal moieties are situated in a bis-, tris-, or polyketal conformation. The invention further relates to applications of these compounds and subsequent reactions thereof.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: October 1, 2013
    Assignee: Segetis, Inc.
    Inventors: Sergey Selifonov, Scott D. Rothstein, Douglas A. Wicks, Brian D. Mullen, Tara J. Mullen, Jason D. Pratt, Charles T. Williams, Chunyong Wu, Ning Zhou
  • Publication number: 20130233204
    Abstract: The present disclosure relates to methods of preparation of compounds resulting from the reaction of levulinic esters and epoxidized unsaturated fatty acid esters. The compounds are useful as renewable biomass-based plasticizers for a variety of polymers. Mono-, di- and tri-ketal adducts formed in a reaction between alkyl esters of levulinate and epoxidized unsaturated fatty acid esters derived from vegetable oils are also disclosed.
    Type: Application
    Filed: April 8, 2013
    Publication date: September 12, 2013
    Applicant: SEGETIS, Inc.
    Inventor: Sergey Selifonov
  • Patent number: 8492433
    Abstract: The present disclosure relates to the preparation of ketal compounds from glycerol and levulinic acid and esters, and uses thereof, in particular the manufacture of polyurethanes.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: July 23, 2013
    Assignee: Segetis, Inc.
    Inventor: Sergey Selifonov