Patents by Inventor Mark E. Davis

Mark E. Davis 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: 10399858
    Abstract: The present disclosure is directed to producing zeolite structures, especially Zeolite SSZ-39, using organic structure directing agents (OSDAs). In particular, the OSDAs comprise isomeric mixtures of N,N-dialkyl piperidinium cations.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: September 3, 2019
    Assignee: California Institute of Technology
    Inventors: Michiel J. Dusselier, Mark E. Davis, Joel E. Schmidt
  • Publication number: 20190247835
    Abstract: The present disclosure is directed to novel crystalline germanosilicate compositions and methods of producing the same. In particular, the crystalline germanosilicate compositions are extra-large-pore compositions, designated CIT-13 possessing 10- and 14-membered rings. The disclosure describes methods of preparing these compositions using substituted benzyl-imidazolium organic structure-directing agents (OSDAs). Also disclosed are methods of using these crystalline compositions.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Inventors: Joel E. Schmidt, Mark E. Davis, Ben W. Boal, Jong Hun Kang
  • Patent number: 10342879
    Abstract: Carrier nanoparticles comprising a polymer containing a polyol coupled to a polymer containing a boronic acid and a linkage cleavable under reducing conditions, configured to present the polymer containing a boronic acid to an environment external to the nanoparticle and related compositions, methods and systems.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: July 9, 2019
    Assignee: California Institute of Technology
    Inventors: Mark E. Davis, Akinleye Alabi
  • Publication number: 20190202995
    Abstract: The present disclosure is directed to nanoparticle delivery systems for delivering biological agents, pharmaceutical compositions of comprising these nanoparticles, and methods of using these compositions. Certain embodiments of the present disclosure provide nanoparticles comprising polymers comprising alternating charged and uncharged segments comprising one or more of the following structural units of Formula (I) Formula (III): wherein A is an uncharged segment comprising polyalkylene glycol; and B is a cationically charged segment comprising at least one polyhydroxy linkage.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 4, 2019
    Inventors: Mark E. Davis, Dorothy Pan
  • Patent number: 10293330
    Abstract: The present disclosure is directed to novel crystalline germanosilicate compositions and methods of producing the same. In particular, the crystalline germanosilicate compositions are extra-large-pore compositions, designated CIT-13 possessing 10- and 14-membered rings. The disclosure describes methods of preparing these compositions using substituted benzyl-imidazolium organic structure-directing agents (OSDAs). Also disclosed are methods of using these crystalline compositions.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 21, 2019
    Assignee: California Institute of Technology
    Inventors: Joel E. Schmidt, Mark E. Davis, Ben W. Boal, Jong Hun Kang
  • Patent number: 10287401
    Abstract: The present disclosure is directed to polymer and polymer conjugate-based nanoparticle delivery systems for delivering biological agents, and methods of making and using these compositions. Certain embodiments of the present disclosure provide polymers comprising alternating charged and uncharged segments comprising one or more of the following structural units of Formula (I) or Formula (II) or Formula (III): wherein is an uncharged segment comprising polyalkylene glycol; and B is a cationically charged segment comprising at least one polyhydroxy linkage.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: May 14, 2019
    Assignee: California Institute of Technology
    Inventors: Mark E. Davis, Dorothy Pan
  • Publication number: 20190136839
    Abstract: SMA actuators and related methods are described. One embodiment of an actuator includes a base; a plurality of buckle arms; and at least a first shape memory alloy wire coupled with a pair of buckle arms of the plurality of buckle arms. Another embodiment of an actuator includes a base and at least one bimorph actuator including a shape memory alloy material. The bimorph actuator attached to the base.
    Type: Application
    Filed: May 4, 2018
    Publication date: May 9, 2019
    Inventors: Mark A. Miller, Nathaniel K. Behning, Dean E. Myers, Michael W. Davis
  • Publication number: 20190117773
    Abstract: Described herein are carrier nanoparticles comprising a polymer containing a polyol coupled to a polymer containing a nitroboronic boronic acid and a linkage cleavable under reducing conditions, configured to present the polymer containing the nitroboronic acid to an environment external to the nanoparticle. Targeted versions of the described nanoparticles are also described, as are related compositions, methods and systems.
    Type: Application
    Filed: November 26, 2018
    Publication date: April 25, 2019
    Inventors: Mark E. Davis, Han Han
  • Publication number: 20190100480
    Abstract: Described herein are compositions having an eight-membered monocyclic unsaturated hydrocarbon, methods and system to separate the eight-membered monocyclic unsaturated hydrocarbon at from a hydrocarbon mixture including additional nonlinear unsaturated C8H2m hydrocarbons with 4?m?8, by contacting the hydrocarbon mixture with a 10-ring pore molecular sieve having a sieving channel with a 10-ring sieving aperture with a minimum crystallographic free diameter greater than 3 ? and a ratio of the maximum crystallographic free diameter to the minimum crystallographic free diameter between 1 and 2, the molecular sieve having a T1/T2 ratio?20:1 wherein T1 is an element independently selected from Si and Ge, and T2 is an element independently selected from Al, B and Ga, the 10-ring pore molecular sieve further having a counterion selected from NH4+, Na+, K+ and Ca++.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 4, 2019
    Inventors: Julia A. KORNFIELD, Mark E. DAVIS, Ming-Hsin WEI, Simon C. JONES
  • Publication number: 20190083962
    Abstract: The present disclosure is directed to the use of novel crystalline germanosilicate compositions in affecting a range of organic transformations. In particular, the crystalline germanosilicate compositions are extra-large-pore compositions, designated CIT-13 possessing 10- and 14-membered rings.
    Type: Application
    Filed: November 13, 2018
    Publication date: March 21, 2019
    Inventors: Joel E. Schmidt, Mark E. Davis, Ben W. Boal, Jong Hun Kang
  • Patent number: 10182986
    Abstract: Described herein are methods of delivering a nanoparticle across the blood brain barrier to the brain of a subject by administering to the subject a nanoparticle having a nanoparticle core and a targeting agent. A variety of targeting agents may serve to promote delivery of the described nanoparticle.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: January 22, 2019
    Assignee: California Institute of Technology
    Inventors: Devin Wiley, Andrew Clark, Mark E. Davis
  • Patent number: 10173211
    Abstract: The present invention is directed to methods of enhancing the catalytic activities of 8-MR zeolites, the methods comprising treating a precursor 8-MR zeolite that has been prepared without the use of an organic structure directing agent and having an Si/Al ratio of less than 5, with high temperature steam for a period of time sufficient to extract at least a portion of the aluminum from the precursor zeolite framework to form a steam-treated zeolite having an Si/tetrahedral Al ratio of greater than 5, wherein the steam has a temperature in a range of from about 350° C. to about 850° C. The compositions produced by these methods and their use in catalytic reactions are also provided.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: January 8, 2019
    Assignee: California Institute of Technology
    Inventors: Yuewei Ji, Mark A. Deimund, Yashodhan Bhawe, Mark E. Davis
  • Publication number: 20190000990
    Abstract: Carrier nanoparticles comprising a polymer containing a polyol coupled to a polymer containing a boronic acid and a linkage cleavable under reducing conditions, configured to present the polymer containing a boronic acid to an environment external to the nanoparticle and related compositions, methods and systems.
    Type: Application
    Filed: September 7, 2018
    Publication date: January 3, 2019
    Inventors: Mark E. Davis, Akinleye Alabi
  • Patent number: 10166291
    Abstract: Described herein are carrier nanoparticles comprising a polymer containing a polyol coupled to a polymer containing a nitroboronic boronic acid and a linkage cleavable under reducing conditions, configured to present the polymer containing the nitroboronic acid to an environment external to the nanoparticle. Targeted versions of the described nanoparticles are also described, as are related compositions, methods and systems.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: January 1, 2019
    Assignee: California Institute of Technology
    Inventors: Mark E. Davis, Han Han
  • Patent number: 10155051
    Abstract: Carrier nanoparticles comprising a polymer containing a polyol coupled to a polymer containing a boronic acid and a linkage cleavable under reducing conditions, configured to present the polymer containing a boronic acid to an environment external to the nanoparticle and related compositions, methods and systems.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: December 18, 2018
    Assignee: California Institute of Technology
    Inventors: Mark E. Davis, Akinleye Alabi
  • Patent number: 10112878
    Abstract: Described herein are compositions having an eight-membered monocyclic unsaturated hydrocarbon, methods and system to separate the eight-membered monocyclic unsaturated hydrocarbon from a hydrocarbon mixture including additional nonlinear unsaturated C8H2m hydrocarbons with 4?m?8, by contacting the hydrocarbon mixture with a 10-ring pore molecular sieve having a sieving channel with a 10-ring sieving aperture with a minimum crystallographic free diameter greater than 3 ? and a ratio of the maximum crystallographic free diameter to the minimum crystallographic free diameter between 1 and 2, the molecular sieve having a T1/T2 ratio?20:1 wherein T1 is an element independently selected from Si and Ge, and T2 is an element independently selected from Al, B and Ga, the 10-ring pore molecular sieve further having a counterion selected from NH4+, Li+, Na+, K+ and Ca++.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: October 30, 2018
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Julia A. Kornfield, Mark E. Davis, Ming-Hsin Wei, Simon C. Jones
  • Publication number: 20180207625
    Abstract: This disclosure describes enantiomerically enriched chiral molecular sieves and methods of making and using the same. In some embodiments, the molecular sieves are silicates or germanosilicates of STW topology.
    Type: Application
    Filed: January 19, 2018
    Publication date: July 26, 2018
    Inventors: MARK E. DAVIS, STEPHEN KRAMER BRAND, JOEL E. SCHMIDT, MICHAEL W. DEEM
  • Publication number: 20180169265
    Abstract: Carrier nanoparticles comprising a polymer containing a polyol coupled to a polymer containing a boronic acid and a linkage cleavable under reducing conditions, configured to present the polymer containing a boronic acid to an environment external to the nanoparticle and related compositions, methods and systems.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 21, 2018
    Inventors: MARK E. DAVIS, AKINLEYE ALABI
  • Publication number: 20180154342
    Abstract: The present disclosure is directed to methods of producing zincoaluminosilicate structures with AEI, CHA, and GME topologies using organic structure directing agents (OSDAs), and the compositions and structures resulting from these methods.
    Type: Application
    Filed: January 17, 2018
    Publication date: June 7, 2018
    Inventors: MICHIEL J. DUSSELIER, MARK E. DAVIS
  • Publication number: 20180126364
    Abstract: The present disclosure is directed to producing zeolite structures with GME topologies using organic structure directing agents (OSDAs) comprising a piperidinium cation, and the compositions and structures resulting from these methods. In some embodiments, the crystalline products have a molar ratio of a molar ratio of Si:Al that is greater than 3.5.
    Type: Application
    Filed: January 8, 2018
    Publication date: May 10, 2018
    Inventors: MICHIEL J. DUSSELIER, MARK E. DAVIS