Patents by Inventor Stephen Halem

Stephen Halem 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).

  • Fluid dispensing and mixing device
    Patent number: 5004158
    Abstract: A device intended primarily for use in a shower stall that is adapted to dispense a predetermined total amount of a selected additive into a water stream, with the rate of mixing of the additive and water being controlled as a function of the water pressure. A positive displacement pump is used to dispense the additive from a storage chamber, and the additive is dispensed via a controllable applicator device.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: April 2, 1991
    Inventors: Stephen Halem, Philip R. Lichtman