Patents by Inventor Donald J. Morrison

Donald J. Morrison 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: 5422799
    Abstract: A flashlight for providing illumination and indicating energization of the light bulb when the bulb is not visible. The inventive device includes a cylindrical main body having a lens and a light bulb coupled to a first end thereof. A plurality of batteries contained within the main body selectively energize the light bulb to provide illumination. A plurality of indicator lights are mounted about a circumference of the main body and are energized in unison with the light bulb. Thus, when the first end of the flash light is positioned upon a ground surface, the indicator lights serve to alert an individual to the light being left on.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: June 6, 1995
    Inventor: Donald J. Morrison, Sr.
  • Patent number: 5151129
    Abstract: A process for the production of a pigment composition comprising precipitating a pigment coupling component from alkaline solution by adding to it an acid, in the presence of a pre-formed, water-soluble azo dyestuff; and subsequently coupling the precipitated coupling component, containing the azo dyestuff, with a pigment diazo or tetrazo component, ensuring that at no time is any substantial amount of uncoupled diazo or tetrazo component present, to form a pigment composition containing the water-soluble azo dyestuff.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: September 29, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Donald J. Morrison, David McGregor, James M. McCrae