Patents by Inventor Mary J. Wegener

Mary J. Wegener 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).

  • Method of forming infrared-sensitive photoconductors of cadmium salt crystallites
    Patent number: 4434222
    Abstract: A photoconductor material having high sensitivity to infrared light is provided therefore making it suitable for use in laser printers. The photoconductor of this invention has a dark decay of approximately 40 volts/second, thereby enhancing the use of this invention with infrared laser printers as compared to prior art infrared sensitive photoconductors. The photoconductor of this invention comprises cadmium sulfide (CdS), cadmium selenide (CdSe), cadmium carbonate (CdCO.sub.3) and cadmium oxide (CdO) in a binder, and preferably also includes a small amount of copper dopant. The photoconductor of this invention is prepared by adding ammonia to a suspension of cadmium sulfide/cadmium carbonate in water and then adding hydrogen selenide to this suspended solution.
    Type: Grant
    Filed: May 15, 1981
    Date of Patent: February 28, 1984
    Assignee: Benson, Inc.
    Inventors: Mary J. Wegener, Morris Feinleib