Patents by Inventor Christopher N. Bowman

Christopher N. Bowman 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: 12071515
    Abstract: The present invention, in one aspect, relates to monomers and photopolymers that exhibit a high refractive index. The photopolymers of the invention have properties suitable for fabricating holographic optical elements (HOEs).
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: August 27, 2024
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Marvin D. Alim, Christopher N. Bowman, Sudheendran Mavila, Robert R. McLeod
  • Patent number: 12054607
    Abstract: The present invention relates in part to compositions displaying stress relaxation at the polymer-filler interface. The adaptive interface (AI) formed by coupling moieties capable of dynamic covalent chemistry (DCC) within the polymer-filler interface promotes stress relaxation and yields tough, and healable composites.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: August 6, 2024
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Christopher N. Bowman, Nancy Sowan, Lewis M. Cox
  • Publication number: 20240124645
    Abstract: Described herein is a composition for producing a thiol-ene covalent adaptable network (CAN) polymer. The composition includes a first monomer including at least one thiol group; and a second monomer including at least one anhydride functional group and at least one alkene functional group. Also described herein are a polymer produced from the composition, a method of producing the polymer using the composition, a method of fabricating a polymer article using the composition, as well as a method of degrading the polymer.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 18, 2024
    Inventors: Christopher N. Bowman, Brady T. Worrell, Juan J. Hernandez, Matthew K. McBride, Sijia Huang, Maciej Podgorski
  • Publication number: 20230221637
    Abstract: Provided herein are compositions suitable for recording holograms containing thiol and/or thioether functionality, and optionally including additional allyl and/or propargyl functional groups. These monomers can be used to synthesize holographic poly-mers having high Lin values. Also provided herein are methods of making holographic polymers and methods recording holograms using these polymers.
    Type: Application
    Filed: June 9, 2021
    Publication date: July 13, 2023
    Inventors: Christopher N. Bowman, Sudheendran Mavila, Jasmine Sinha, Yunfeng HU, Maciej Podgorski
  • Publication number: 20230159678
    Abstract: Provided herein are methods of using aryl thiols as photoinitiators. The thiol compounds are useful as oxygen insen-sitive photoinitiators for applications such as bulk polymerizations and for specialty polymer synthesis by preparing aromatic thiol functionalized macroinitiators.
    Type: Application
    Filed: June 16, 2021
    Publication date: May 25, 2023
    Inventors: Christopher N. Bowman, Dillon Love
  • Publication number: 20230119934
    Abstract: The present invention relates to covalent adaptable networks (CANs) having exchangeable crosslinks which are able to undergo repeated covalent bond reshuffling through photo-activation at ambient temperatures. The invention provides covalent adaptable network forming compositions as well as methods of forming, remolding and recycling the CANs of the invention.
    Type: Application
    Filed: November 15, 2022
    Publication date: April 20, 2023
    Inventors: CHRISTOPHER N. BOWMAN, BRADY T. WORRELL, GAYLA BERG LYON, MATTHEW K. MCBRIDE, CHEN WANG
  • Patent number: 11535713
    Abstract: The present invention relates to covalent adaptable networks (CANs) having exchangeable crosslinks that are able to undergo repeated covalent bond reshuffling through photo-activation at ambient temperatures. The invention provides covalent adaptable network forming compositions as well as methods of forming, remolding and recycling the CANs of the invention.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: December 27, 2022
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Christopher N. Bowman, Brady T. Worrell, Gayla Berg Lyon, Matthew K. McBride, Chen Wang
  • Publication number: 20220315706
    Abstract: In one aspect, the disclosure relates to compositions comprising semicrystalline, linear photopolymers that possesses extraordinary mechanical properties for application in 3D printing. The photopolymers are rapidly fabricated using low viscosity liquids at ambient conditions.
    Type: Application
    Filed: June 8, 2020
    Publication date: October 6, 2022
    Inventors: CHRISTOPHER N. BOWMAN, MARVIN DION ALIM, MATTHEW K. MCBRIDE, KIMBERLY KAY-CHILDRESS, JUAN J. HERNANDEZ, JEFFREY W. STANSBURY
  • Publication number: 20220119567
    Abstract: The present invention provides in one aspect holographic materials comprising a covalent adaptable networks (CAN) matrix that has exchangeable crosslinks, and at least one writing monomer, wherein upon exposure to a stimulus, the holographic material can undergo photopolymerization and serve as a recording medium.
    Type: Application
    Filed: February 18, 2020
    Publication date: April 21, 2022
    Inventors: CHRISTOPHER N. BOWMAN, MATTHEW K. MCBRIDE, BRADY T. WORRELL, MARVIN DION ALIM, ROBERT R. MCLEOD
  • Publication number: 20210292482
    Abstract: The present invention relates to covalent adaptable networks (CANs) having exchangeable crosslinks that are able to undergo repeated covalent bond reshuffling through photo-activation at ambient temperatures. The invention provides covalent adaptable network forming compositions as well as methods of forming, remolding and recycling the CANs of the invention.
    Type: Application
    Filed: August 23, 2017
    Publication date: September 23, 2021
    Inventors: CHRISTOPHER N. BOWMAN, BRADY T. WORRELL, GAYLA BERG LYON, MATTHEW K. MCBRIDE, CHEN WANG
  • Publication number: 20210246266
    Abstract: The present invention, in one aspect, relates to monomers and photopolymers that exhibit a high refractive index. The photopolymers of the invention have properties suitable for fabricating holographic optical elements (HOEs).
    Type: Application
    Filed: June 10, 2019
    Publication date: August 12, 2021
    Inventors: Marvin D. Alim, Christopher N. Bowman, Sudheendran Mavila, Robert R. McLeod
  • Publication number: 20210002469
    Abstract: The present invention relates in part to compositions displaying stress relaxation at the polymer-filler interface. The adaptive interface (AI) formed by coupling moieties capable of dynamic covalent chemistry (DCC) within the polymer-filler interface promotes stress relaxation and yields tough, and healable composites.
    Type: Application
    Filed: March 19, 2019
    Publication date: January 7, 2021
    Inventors: CHRISTOPHER N. BOWMAN, NANCY SOWAN, LEWIS M. COX
  • Publication number: 20200002479
    Abstract: Disclosed herein are Click Nucleic Acid Polymers (CNA-polymers) that comprise one or more units which can anneal to complementary units in a manner which affords hybridization of the disclosed CNA's to synthetic or naturally occurring polymers. Also disclosed are nanoparticle/CNA conjugate. Further disclosed are methods for preparing the disclosed polymers and nanoparticle/polymer conjugates.
    Type: Application
    Filed: June 27, 2019
    Publication date: January 2, 2020
    Applicant: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
    Inventors: Christopher N. BOWMAN, Xun HAN, Benjamin D. FAIRBANKS
  • Patent number: 10508116
    Abstract: Disclosed herein are Click Nucleic Acid Polymers (CNA-polymers) that comprise repeating dimer, trimer and tetramer units. The disclosed polymers can be used for antisense applications, for example, in treatment of “trinucleotide repeat disorders, i.e., Huntington's Disease and the like.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: December 17, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY
    Inventors: Christopher N. Bowman, Weixian Xi, Sankha Pattanayak
  • Patent number: 10017510
    Abstract: Click thiol-X monomers and polymers containing such monomers are disclosed. The clickable sequence controllable monomers include an optionally protected thiol moiety; an optionally protected Michael acceptor moiety; a primary functional side chain and one ore more secondary functional side chains. A clickable sequence controllable monomer, can have the structure: wherein independently Y and Z are atoms having a valence electrons of 3 or more; n is a integer from 0-10; m is a integer from 0-10; x is a integer from 0-10; PFS is a functional group SFSi; SFS2; and SFS3 are independently a combination of hydrogen, hydroxyl, aromatic, amine, carboxyl, and carbonyls, optionally substituted to form hydrophilic, hydrophobic, amphiphilic, or charged (positive or negative or both) side chains; T is an optionally protected thiol; and TCA is an optionally protected thiol-click acceptor. Methods of using such polymers are also disclosed.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: July 10, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
    Inventors: Christopher N. Bowman, Christopher J. Kloxin, Weixian Xi, Tao Gong, Sankha Pattanayak
  • Publication number: 20180100036
    Abstract: Disclosed herein are Click Nucleic Acid Polymers (CNA-polymers) that comprise repeating dimer, trimer and tetramer units. The disclosed polymers can be used for antisense applications, for example, in treatment of “trinucleotide repeat disorders, i.e., Huntington's Disease and the like.
    Type: Application
    Filed: October 6, 2017
    Publication date: April 12, 2018
    Inventors: Christopher N. Bowman, Weixian Xi, Sankha Pattanayak
  • Patent number: 9879012
    Abstract: Click nucleic acid monomers and polymers containing such monomers are disclosed. The click nucleic acid monomers include an optionally protected thiol moiety, an optionally protected thiol-click acceptor moiety, and an optionally protected nucleobase (NB), which in some examples is an A, G, T, U, or C nucleobase. In some examples, the click nucleic acid monomer includes a N-vinyl thiol acetamide (VTA) backbone. In other examples the click nucleic acid monomer includes a N-vinyl thiol ethylamine (VTE) backbone. Methods of using such polymers, for example in place of naturally occurring nucleic acid polymer applications, such as DNA or RNA, and synthetic nucleic acid polymer applications, such as PNA or morpholino nucleic acids, are also disclosed.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: January 30, 2018
    Assignee: REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
    Inventors: Christopher N. Bowman, Christopher J. Kloxin, Weixian Xi
  • Patent number: 9700492
    Abstract: The invention includes a composition comprising a vinyl sulfone monomer, a thiol monomer, and optionally an isocyanate monomer. The invention further includes a composition comprising a composition comprising the tetra(2-mercapto)silane (SiTSH) monomer and at least one selected from the group consisting of (a) a Michael acceptor, optionally an isocyanate monomer, and optionally at least one catalyst selected from the group consisting of a base, nucleophile, photolabile base, photolabile nucleophile, and mixtures thereof; (b) an ene monomer, and optionally a polymerization photoinitiator. In certain embodiments, once the composition is polymerized, the polymerized system is suitable for use as a dental composite system. In other embodiments, the polymerized system is stable to acidic and basic conditions. In yet other embodiments, the polymerized system forms microparticles. The invention further includes a method of generating a dental polymeric material.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: July 11, 2017
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Christopher N. Bowman, Weixian Xi, Shunsuke Chatani, Tao Gong, Devatha P. Nair, Maciej Podgorski
  • Patent number: 9701792
    Abstract: The present invention includes compositions comprising an alkyne-based substrate, an azide-based substrate, optionally a Cu(II) salt and optionally a photoinducible reducing agent. The present invention further includes a method of preparing composite materials that are suitable for use as dental implants using the compositions of the invention.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: July 11, 2017
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Christopher N. Bowman, Christopher J. Kloxin, Jeffrey Stansbury, Tao Gong, Matthew McBride
  • Publication number: 20170015667
    Abstract: Click thiol-X monomers and polymers containing such monomers are disclosed. The clickable sequence controllable monomers include an optionally protected thiol moiety; an optionally protected Michael acceptor moiety; a primary functional side chain and one ore more secondary functional side chains. A clickable sequence controllable monomer, can have the structure: wherein independently Y and Z are atoms having a valence electrons of 3 or more; n is a integer from 0-10; m is a integer from 0-10; x is a integer from 0-10; PFS is a functional group SFSi; SFS2; and SFS3 are independently a combination of hydrogen, hydroxyl, aromatic, amine, carboxyl, and carbonyls, optionally substituted to form hydrophilic, hydrophobic, amphiphilic, or charged (positive or negative or both) side chains; T is an optionally protected thiol; and TCA is an optionally protected thiol-click acceptor. Methods of using such polymers are also disclosed.
    Type: Application
    Filed: February 6, 2015
    Publication date: January 19, 2017
    Inventors: Christopher N. BOWMAN, Christopher J. KLOXIN, Weixian XI, Tao GONG, Sankha PATTANAYAK