Patents by Inventor Douglas James Birkholz

Douglas James Birkholz 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).

  • Pressure container with actuator overcap
    Patent number: D501794
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: February 15, 2005
    Assignee: S.C. Johnson & Son, Inc.
    Inventors: Edward J. Kunesh, Allen D. Miller, Douglas James Birkholz, James Charles Boda
  • Aerosol container with actuator overcap
    Patent number: D470402
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: February 18, 2003
    Assignee: S.C. Johnson & Son, Inc.
    Inventors: Edward J. Kunesh, Allen D. Miller, Douglas James Birkholz, James Charles Boda
  • Aerosol container with actuator overcap and dust cover
    Patent number: D470752
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: February 25, 2003
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Edward J. Kunesh, Allen D. Miller, Douglas James Birkholz, James Charles Boda
  • Aerosol container
    Patent number: D470753
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: February 25, 2003
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Edward J. Kunesh, Allen D. Miller, Douglas James Birkholz, James Charles Boda
  • Pressure container with actuator overcap and dust cover
    Patent number: D481935
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: November 11, 2003
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Edward J. Kunesh, Allen D. Miller, Douglas James Birkholz, James Charles Boda
  • Bottle holder
    Patent number: D581010
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: November 18, 2008
    Assignee: S.C. Johnson & Son, Inc.
    Inventors: Evan A. Sparks, Timothy R. Ordiway, Stephen B. Leonard, Douglas James Birkholz
  • Shopping cart shelf
    Patent number: D806976
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: January 2, 2018
    Assignee: TARGET BRANDS, INC.
    Inventors: Robert D. Peota, Mitchell W. Knoll, Dale Selsor Di Iulio, Douglas James Birkholz, Jeffrey Michael Lallensack
  • Shopping cart shelf
    Patent number: D850754
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 4, 2019
    Assignee: TARGET BRANDS, INC.
    Inventors: Robert D. Peota, Mitchell W. Knoll, Dale Selsor Di Iulio, Douglas James Birkholz, Jeffrey Michael Lallensack