Patents by Inventor Michael J. Sommerfeld

Michael J. Sommerfeld 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).

  • Rosette iron
    Patent number: D257111
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: September 30, 1980
    Inventor: Michael J. Sommerfeld
  • Rosette iron
    Patent number: D257112
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: September 30, 1980
    Inventor: Michael J. Sommerfeld
  • Rosette iron
    Patent number: D259383
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: June 2, 1981
    Inventor: Michael J. Sommerfeld
  • Rosette iron
    Patent number: D260128
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: August 11, 1981
    Inventor: Michael J. Sommerfeld