Patents by Inventor Carl B. Howard

Carl B. Howard 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).

  • Automatically adjustable modern pipe wrench
    Patent number: 4903555
    Abstract: A pipe wrench that is readily fitted to a desired size by engagement of rack-like teeth on a stem portion with a movable jaw with co-engaging rack-like teeth, the pipe wrench being of a modern type and including means for retrofitting conventional modern pipe wrenches.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: February 27, 1990
    Assignee: Nowata Agricultural Management Co., Inc.
    Inventor: Carl B. Howard