Patents by Inventor Dennis G. Johnson

Dennis G. Johnson 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).

  • Oil cap remover
    Patent number: 4059033
    Abstract: A twelve inch straight rod manually actuated by a cross bar handle fixed to one end thereof, the opposite end of said rod having mounted thereon a device for engaging and hooking onto a certain type of oil cap widely used by American automobile manufacturers, and for unscrewing, removing and then replacing said cap without having to touch the cap with the hands, said device then being readily detachable from the cap.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: November 22, 1977
    Inventor: Dennis G. Johnson
  • Sanding tool
    Patent number: D834912
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: December 4, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: John G. Petersen, Dennis G. Johnson, Dwight B. Schoenherr
  • Cleaning tool
    Patent number: D862821
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: October 8, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Thomas C. Meier, Mark W. Baldwin, Mario A. Davenport, Daniel J. Rebecca, Dennis G. Johnson, Lac V. Nguyen, George H. Kormanos
  • Cleaning tool
    Patent number: D864510
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: October 22, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Thomas C. Meier, Mark W. Baldwin, Mario A. Davenport, Zachary A. Schaefer, Daniel J. Rebecca, Dennis G. Johnson, Lac V. Nguyen, George H. Kormanos