Patents by Inventor Harold Charles Ziegler, Jr.

Harold Charles Ziegler, Jr. 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).

  • Segmental concrete stone unit
    Patent number: D431870
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: October 10, 2000
    Inventor: Harold Charles Ziegler, Jr.