Patents by Inventor Jacob Lee Oberholtzer

Jacob Lee Oberholtzer 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).

  • Polycarbonate copolymer blends, articles formed therefrom, and methods of manufacture
    Patent number: 11926733
    Abstract: A polymer blend including 5 to 95 weight percent of a poly(ester-carbonate-carbonate) comprising 40 to 95 mole percent of ester units comprising low heat bisphenol groups and high heat bisphenol groups, wherein the ester units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of ester units in the poly(ester-carbonate-carbonate), and 5 to 60 mole percent of carbonate units comprising the low heat bisphenol groups and the high heat bisphenol groups, wherein the carbonate units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of carbonate units in the poly(ester-carbonate-carbonate); and 5 to 95 weight percent of a poly(etherimide), wherein the weight percent of each polymer is based on the total weight of the polymers in the blend, and a molded 0.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: March 12, 2024
    Assignee: SHPP GLOBAL TECHNOLOGIES B.V.
    Inventors: Paul Dean Sybert, Norimitsu Yamaguchi, Jacob Lee Oberholtzer, James Alan Mahood
  • POLYCARBONATE COPOLYMER BLENDS, ARTICLES FORMED THEREFROM, AND METHODS OF MANUFACTURE
    Publication number: 20200392331
    Abstract: A polymer blend including 5 to 95 weight percent of a poly(ester-carbonate-carbonate) comprising 40 to 95 mole percent of ester units comprising low heat bisphenol groups and high heat bisphenol groups, wherein the ester units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of ester units in the poly(ester-carbonate-carbonate), and 5 to 60 mole percent of carbonate units comprising the low heat bisphenol groups and the high heat bisphenol groups, wherein the carbonate units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of carbonate units in the poly(ester-carbonate-carbonate); and 5 to 95 weight percent of a poly(etherimide), wherein the weight percent of each polymer is based on the total weight of the polymers in the blend, and a molded 0.
    Type: Application
    Filed: February 21, 2019
    Publication date: December 17, 2020
    Inventors: Paul Dean Sybert, Norimitsu Yamaguchi, Jacob Lee Oberholtzer, James Alan Mahood
  • Method of forming a dry quaternary ammonium salt mixture
    Patent number: 7772435
    Abstract: Disclosed herein is a method comprising: (a) adding an aqueous solution comprising a quaternary ammonium salt to an organic solvent in a vessel under an inert atmosphere, thereby forming a first mixture comprising the quaternary ammonium salt and the solvent; and (b) mixing the first mixture at a temperature and for a time sufficient to remove water and a portion of the solvent from the first mixture, wherein the mixing is performed in an inert atmosphere and the temperature is less than the decomposition temperature of the quaternary ammonium salt.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: August 10, 2010
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Thomas Link Guggenheim, Paul Edward Howson, Farid Fouad Khouri, Lioba Maria Kloppenburg, Matthew Hal Littlejohn, Jacob Lee Oberholtzer, Juan Rodriguez Ordonez, Suresh R. Sriram, David Winfield Woodruff
  • METHOD OF FORMING A DRY QUATERNARY AMMONIUM SALT MIXTURE
    Publication number: 20080161576
    Abstract: Disclosed herein is a method comprising: (a) adding an aqueous solution comprising a quaternary ammonium salt to an organic solvent in a vessel under an inert atmosphere, thereby forming a first mixture comprising the quaternary ammonium salt and the solvent; and (b) mixing the first mixture at a temperature and for a time sufficient to remove water and a portion of the solvent from the first mixture, wherein the mixing is performed in an inert atmosphere and the temperature is less than the decomposition temperature of the quaternary ammonium salt.
    Type: Application
    Filed: December 28, 2006
    Publication date: July 3, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Thomas Link Guggenheim, Paul Edward Howson, Farid Fouad Khouri, Lioba Maria Kloppenburg, Matthew Hal Littlejohn, Jacob Lee Oberholtzer, Juan Rodriguez Ordonez, Suresh R. Sriram, David Winfield Woodruff