Patents by Inventor Thay Ung

Thay Ung 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).

  • Latent, high-activity olefin metathesis catalysts containing an N-heterocyclic carbene ligand
    Patent number: 9238709
    Abstract: The invention provides novel organometallic complexes useful as olefin metathesis catalysts. The complexes have an N-heterocyclic carbene ligand and a chelating carbene ligand associated with a Group 8 transition metal center. The molecular structure of the complexes can be altered so as to provide a substantial latency period. The complexes are particularly useful in catalyzing ring closing metathesis of acyclic olefins and ring opening metathesis polymerization of cyclic olefins.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: January 19, 2016
    Assignees: MATERIA, INC., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Thay Ung, Yann Schrodi, Mark S. Trimmer, Andrew Hejl, Daniel Sanders, Robert H. Grubbs
  • LATENT, HIGH-ACTIVITY OLEFIN METATHESIS CATALYSTS CONTAINING AN N-HETEROCYCLIC CARBENE LIGAND
    Publication number: 20150141603
    Abstract: The invention provides novel organometallic complexes useful as olefin metathesis catalysts. The complexes have an N-heterocyclic carbene ligand and a chelating carbene ligand associated with a Group 8 transition metal center. The molecular structure of the complexes can be altered so as to provide a substantial latency period. The complexes are particularly useful in catalyzing ring closing metathesis of acyclic olefins and ring opening metathesis polymerization of cyclic olefins.
    Type: Application
    Filed: September 26, 2014
    Publication date: May 21, 2015
    Inventors: Thay UNG, Yann SCHRODI, Mark S. TRIMMER, Andrew HEJL, Daniel SANDERS, Robert H. GRUBBS
  • Latent, high-activity olefin metathesis catalysts containing an N-heterocyclic carbene ligand
    Patent number: 8871879
    Abstract: The invention provides novel organometallic complexes useful as olefin metathesis catalysts. The complexes have an N-heterocyclic carbene ligand and a chelating carbene ligand associated with a Group 8 transition metal center. The molecular structure of the complexes can be altered so as to provide a substantial latency period. The complexes are particularly useful in catalyzing ring closing metathesis of acyclic olefins and ring opening metathesis polymerization of cyclic olefins.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 28, 2014
    Assignees: Materia, Inc., California Institute of Technology
    Inventors: Thay Ung, Yann Schrodi, Mark S. Trimmer, Andrew Hejl, Daniel Sanders, Robert H. Grubbs
  • LATENT, HIGH-ACTIVITY OLEFIN METATHESIS CATALYSTS CONTAINING AN N-HETEROCYCLIC CARBENE LIGAND
    Publication number: 20130296511
    Abstract: The invention provides novel organometallic complexes useful as olefin metathesis catalysts. The complexes have an N-heterocyclic carbene ligand and a chelating carbene ligand associated with a Group 8 transition metal center. The molecular structure of the complexes can be altered so as to provide a substantial latency period. The complexes are particularly useful in catalyzing ring closing metathesis of acyclic olefins and ring opening metathesis polymerization of cyclic olefins.
    Type: Application
    Filed: February 27, 2013
    Publication date: November 7, 2013
    Inventors: Thay UNG, Yann SCHRODI, Mark S. TRIMMER, Andrew HEJL, Daniel SANDERS, Robert H. GRUBBS
  • Latent, high-activity olefin metathesis catalysts containing an N-heterocyclic carbene ligand
    Publication number: 20050261451
    Abstract: The invention provides novel organometallic complexes useful as olefin metathesis catalysts. The complexes have an N-heterocyclic carbene ligand and a chelating carbene ligand associated with a Group 8 transition metal center. The molecular structure of the complexes can be altered so as to provide a substantial latency period. The complexes are particularly useful in catalyzing ring closing metathesis of acyclic olefins and ring opening metathesis polymerization of cyclic olefins.
    Type: Application
    Filed: March 29, 2005
    Publication date: November 24, 2005
    Applicant: California Institute of Technology
    Inventors: Thay Ung, Yann Schrodi, Mark Trimmer, Andrew Hejl, Daniel Sanders, Robert Grubbs