Patents Represented by Attorney Louis J. Knobbe

Find this attorney in the Justia Lawyer Directory

  • Pool cue tip file
    Patent number: D242896
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: January 4, 1977
    Inventor: Richard D. Poliquin
  • Pressure relief valve for a low pressure cuffed tracheostomy tube
    Patent number: D243412
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: February 15, 1977
    Assignee: Shiley Laboratories, Inc.
    Inventors: Kenneth K. Krueger, Todor Pavlov
  • Roof screen support system
    Patent number: D243853
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: March 29, 1977
    Inventor: Olgierd Z. Ejchorszt
  • Disposable recording pen
    Patent number: D244025
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: April 12, 1977
    Assignee: Kingmann-White, Inc.
    Inventor: Jerald Carl Raahauge
  • Can lid punch
    Patent number: D244079
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: April 19, 1977
    Inventor: Robert H. Heckroth