Patents by Inventor William J. Stein

William J. 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).

  • System and method for producing nebulized sample analyte containing solution for introduction to sample analysis systems
    Patent number: 6002097
    Abstract: The present invention is a system for nebulizing sample analyte containing solutions which allows liquid solution and gas entry, and is tyically utilized in combination or integration with an interface for directing sample analyte containing solution which is nebulized. The present invention provides improvement in the form of system design that prevents sample delivery tube component damage, sample solution electrical charging, sample solution "re-nebulization" effects, and sample analyte carry-over memory effects during a present invention method of use for introducing nebulized sample analyte containing solution into, for instance, a mass-spectrometer sample analysis system.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: December 14, 1999
    Assignees: Transgenomic, Inc., Yokogawa Analytical Systems, Inc.
    Inventors: Akihiro Morioka, Junichi Takahashi, Toshikazu Amano, William J. Stein, Robert C. Fry