Patents by Inventor Michael J. Leck

Michael J. Leck 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 and apparatus for the measurement of airborne fibres
    Patent number: 5442190
    Abstract: Apparatus for measuring the quantity of fibers present in a gaseous fluid includes a pair of sloping shield electrodes (21) to shield charged fibers from the influence of a precipitating field other than in the region adjacent an optical detector (26).
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: August 15, 1995
    Assignee: British Technology Group Ltd.
    Inventor: Michael J. Leck