Patents by Inventor Levi NEUFELD

Levi NEUFELD 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).

  • METHOD FOR PREVENTING THE DIFFUSION OF SOIL FUMIGANT
    Publication number: 20220331849
    Abstract: The present disclosure relates to a barrier paper comprising a paper coated with polyvinyl alcohol composition, and a method for reducing diffusion of soil fumigant using the same.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 20, 2022
    Applicant: KURARAY CO., LTD.
    Inventors: Keisuke Morikawa, Pablo Garcia, Levi Neufeld
  • 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 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
  • 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
  • AQUEOUS SEED COATING COMPOSITION
    Publication number: 20190380257
    Abstract: The present invention relates generally to an aqueous seed coating composition based on a specific polyvinyl alcohol copolymer resin as a binder plus a hydrophobic pesticide additive, and seeds coated with such coating composition, which coated seeds have a desirable combination of bulk low dusting, bulk seed flowability and good germination characteristics.
    Type: Application
    Filed: March 26, 2019
    Publication date: December 19, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Ghebrehiwet GHEBREMESKEL, Masaki KATO, Levi NEUFELD