Patents by Inventor Donald R. Collins

Donald R. Collins 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: 6003389
    Abstract: A scanning differential mobility analysis system having a charging device, a scanning differential mobility analyzer, a flow control, and a particle detector. The charging probability and the flow rates can be dynamically adjusted according to the instant size of the particles under measurement.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: December 21, 1999
    Assignee: California Institute of Technology
    Inventors: Richard C. Flagan, Donald R. Collins