Patents by Inventor Thaddeus H. Walkowicz

Thaddeus H. Walkowicz 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).

  • System for refilling inkjet cartridges
    Patent number: 7780276
    Abstract: Systems and methods for refilling inkjet printer cartridges are described. The system includes at least one rotary valve that contains a plurality of ports and a common port. The system further includes at least one pump in liquid communication with the common port of the rotary valve. At least one ink source is in liquid communication with at least one of the ports of the rotary valve, and at least one dispensing line is connected to at least one of the ports, where the dispensing line is configured to provide ink to an inkjet printer cartridge.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: August 24, 2010
    Assignee: Retail Inkjet Solutions, Inc.
    Inventors: Jason Guhse, Herb Sarnoff, Thaddeus H. Walkowicz, Steve Szabo