Patents by Inventor Robert D. Stein

Robert D. Stein 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).

  • Patent number: 5394506
    Abstract: A fragrance dispenser for a vehicle, such as an automobile, that utilizes the automobile's cigarette lighter as a heating source. The fragrance dispenser includes a housing for plugging it into the cigarette lighter socket and a wedge-shaped divergent housing that has an open, or mostly open, top portion that allows for dispensing of the fragrance, while at the same time providing visual inspection of the remaining material. The system utilizes a replaceable cartridge of a volatile fragrance emitting material.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: February 28, 1995
    Inventors: Robert D. Stein, Sherry B. Gunsberger