Patents by Inventor Kevin P. Ramirez

Kevin P. Ramirez 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).

  • Bis(aminophenylphenol) ligands and transition metal catalysts prepared therefrom
    Patent number: 10696641
    Abstract: Disclosed are novel bis(aminophenylphenol) ligands and transition metal compounds derived therefrom. Also disclosed are methods of making the ligands and transition metal compounds.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: June 30, 2020
    Assignee: Univation Technologies, LLC
    Inventors: Catherine Anne Faler, Kevin P. Ramirez
  • Methods for preparing bridged bi-aromatic ligands
    Patent number: 10689314
    Abstract: New methods for preparing bridged bi-aromatic ligands are disclosed. The methods employ aryl coupling of unprotected phenols. The ligands may be used to prepare transition metal compounds useful as catalysts in olefin polymerization.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: June 23, 2020
    Assignee: Univation Technologies, LLC
    Inventors: Catherine Anne Faler, Kevin P. Ramirez
  • Bridged bi-aromatic ligands and transition metal compounds prepared therefrom
    Patent number: 10252967
    Abstract: Disclosed are novel bridged bi-aromatic phenol ligands and transition metal compounds derived therefrom. Also disclosed are methods of making the ligands and transition metal compounds.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: April 9, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Catherine Anne Faler, Kevin P. Ramirez
  • Methods for preparing bridged bi-aromatic ligands
    Patent number: 10239809
    Abstract: New methods of preparing bridged bi-aromatic ligands are disclosed. The methods employ direct di-ortho-lithiation of aromatic rings of bridged protected bi-aromatic diphenols. The ligands may be used to prepare transition metal compounds useful as catalysts in olefin polymerization.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: March 26, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Catherine Anne Faler, C. Jeff Harlan, Kevin P. Ramirez
  • Phenolate transition metal complexes, production and use thereof
    Patent number: 10221260
    Abstract: Phenolate ligands and transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: March 5, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Crisita Carmen H. Atienza, David A. Cano, Catherine A. Faler, Kevin P. Ramirez
  • BIS(AMINOPHENYLPHENOL) LIGANDS AND TRANSITION METAL COMPOUNDS PREPARED THEREFROM
    Publication number: 20180305324
    Abstract: Disclosed are novel bis(aminophenylphenol) ligands and transition metal compounds derived therefrom. Also disclosed are methods of making the ligands and transition metal compounds.
    Type: Application
    Filed: April 25, 2016
    Publication date: October 25, 2018
    Applicant: Univation Technologies, LLC
    Inventors: Catherine Anne Faler, Kevin P. Ramirez
  • METHODS FOR PREPARING BRIDGED BI-AROMATIC LIGANDS
    Publication number: 20180141883
    Abstract: New methods for preparing bridged bi-aromatic ligands are disclosed. The methods employ aryl coupling of unprotected phenols. The ligands may be used to prepare transition metal compounds useful as catalysts in olefin polymerization.
    Type: Application
    Filed: April 18, 2016
    Publication date: May 24, 2018
    Applicant: Univation Technologies, LLC
    Inventors: Catherine Anne FALER, Kevin P. RAMIREZ
  • BRIDGED BI-AROMATIC LIGANDS AND TRANSITION METAL COMPOUNDS PREPARED THEREFROM
    Publication number: 20180086685
    Abstract: Disclosed are novel bridged bi-aromatic phenol ligands and transition metal compounds derived therefrom. Also disclosed are methods of making the ligands and transition metal compounds.
    Type: Application
    Filed: April 19, 2016
    Publication date: March 29, 2018
    Applicant: Univation Technologies, LLC
    Inventors: Catherine Anne Faler, Kevin P. Ramirez
  • METHODS FOR PREPARING BRIDGED BI-AROMATIC LIGANDS
    Publication number: 20180079704
    Abstract: New methods of preparing bridged bi-aromatic ligands are disclosed. The methods employ direct di-ortho-lithiation of aromatic rings of bridged protected bi-aromatic diphenols. The ligands may be used to prepare transition metal compounds useful as catalysts in olefin polymerization.
    Type: Application
    Filed: April 19, 2016
    Publication date: March 22, 2018
    Applicant: Univation Technologies, LLC
    Inventors: Catherine Anne Faler, C. Jeff Harlan, Kevin P. Ramirez
  • Phenolate Transition Metal Complexes, Production and Use Thereof
    Publication number: 20180030167
    Abstract: Phenolate ligands and transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.
    Type: Application
    Filed: July 7, 2017
    Publication date: February 1, 2018
    Inventors: Crisita Carmen H. Atienza, David A. Cano, Catherine A. Faler, Kevin P. Ramirez