Patents by Inventor Bart Engendahl

Bart Engendahl 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).

  • Compositions including keto-ester compounds and methods of using the same
    Patent number: 11370996
    Abstract: Compositions that include at least one low molecular weight to oxygen containing solvent and one or more compounds of formula (I) wherein R is a C1-C6 alkyl; X is a C1-C10 alkyl and n is an integer from 0 to 5. Methods of removing polymeric material containing heteroatoms from a surface by contacting the surface with such compositions and wiping the composition at least some portion of the polymeric material from the surface.
    Type: Grant
    Filed: December 22, 2018
    Date of Patent: June 28, 2022
    Assignee: FOURTH PRINCIPLE, LLC
    Inventors: Bart Engendahl, Tess Fennelly
  • COMPOSITIONS INCLUDING KETO-ESTER COMPOUNDS AND METHODS OF USING THE SAME
    Publication number: 20200377823
    Abstract: Compositions that include at least one low molecular weight to oxygen containing solvent and one or more compounds of formula (I) wherein R is a C1-C6 alkyl; X is a C1-C10 alkyl and n is an integer from 0 to 5. Methods of removing polymeric material containing heteroatoms from a surface by contacting the surface with such compositions and wiping the composition at least some portion of the polymeric material from the surface.
    Type: Application
    Filed: December 22, 2018
    Publication date: December 3, 2020
    Inventors: Bart Engendahl, Tess Fennelly