Patents by Inventor Richard Opfer

Richard Opfer 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).

  • Publication number: 20250101319
    Abstract: This invention relates to a process for chemically treating a carbon-containing feedstock (e.g., a polymer-based feedstock), comprising contacting (e.g., by a hydrocracking reaction) the carbon-containing feedstock and a hydrogen stream in the presence of at least one hydrocracking catalyst to produce an alkane-containing product stream. The hydrocracking catalyst comprises at least one transition metal or transition metal sulfide supported on an oxide-containing support. This invention also relates to an alkane-containing mixture obtained by the process described herein and a system/apparatus for carrying out the process described herein.
    Type: Application
    Filed: September 26, 2024
    Publication date: March 27, 2025
    Inventors: Vibin Vargheese, Nicholas Wang, Matthew Feeney, Ishant Khurana, Jan Kalfus, Scott Mitchell, Richard Opfer
  • Publication number: 20240166776
    Abstract: A method of forming a light-polyisobutylene may include polymerizing isobutene or an isobutene-containing monomer mixture in presence of a proton-form zeolite catalyst to form a light-polyisobutylene. A light-polyisobutylene may be formed by the method of polymerizing isobutene or an isobutene-containing monomer mixture in presence of a proton-form zeolite catalyst.
    Type: Application
    Filed: November 22, 2023
    Publication date: May 23, 2024
    Applicant: Braskem S.A.
    Inventors: Richard Caulkins, Jiahan Xie, Alicia Brasselle, Richard Opfer, Dan Xie, Maria Giuliana Torraga Uchiyama, Marcio Henrique Dos Santos Andrade, João Capistrano Nobre De Abreu, Danniel Panza, Mauricio Silveira Cadore, Suzana Kupidlowski Boaventura, Jan Kalfus