Patents by Inventor Brittany SPELL

Brittany SPELL 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).

  • Polyvinyl alcohol based diverting agents
    Patent number: 11118105
    Abstract: Provided are particulate polyvinyl alcohol-based diverting agents for use in subterranean treatments, which are prepared by compacting a specified polyvinyl alcohol copolymer optionally with certain specified additives and optionally other polyvinyl alcohols.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: September 14, 2021
    Assignee: KURARAY CO., LTD.
    Inventors: Ghebrehiwet Ghebremeskel, Masaki Kato, Levi Neufeld, Brittany Spell
  • POLYVINYL ALCOHOL BASED DIVERTING AGENTS
    Publication number: 20200071605
    Abstract: Provided are particulate polyvinyl alcohol-based diverting agents for use in subterranean treatments, which are prepared by compacting a specified polyvinyl alcohol copolymer optionally with certain specified additives and optionally other polyvinyl alcohols.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 5, 2020
    Applicant: KURARAY CO. , LTD.
    Inventors: Ghebrehiwet GHEBREMESKEL, Masaki KATO, Levi NEUFELD, Brittany SPELL
  • POLYVINYL ALCOHOL BASED LOST CIRCULATION MATERIALS
    Publication number: 20200071597
    Abstract: Provided are particulate polyvinyl alcohol-based loss circulation control compositions for use in subterranean treatments, which are prepared by compacting a specified polyvinyl alcohol copolymer with an acid-soluble weighting agent, optionally with other specified additives and other polyvinyl alcohols.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 5, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Ghebrehiwet GHEBREMESKEL, Masaki KATO, Levi NEUFELD, Brittany SPELL