Patents by Inventor John J. Whalen, Jr.

John J. Whalen, 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).

  • Marking devices
    Patent number: 3972629
    Abstract: An improved marking device consisting of an absorbent reservoir, an absorbent wick, means for maintaining the concentration of marking fluid in the wick at a preset level and a writing tip, in contact with said wick for applying a marking fluid.
    Type: Grant
    Filed: June 3, 1975
    Date of Patent: August 3, 1976
    Inventor: John J. Whalen, Jr.