Patents by Inventor Aamir Ashraf

Aamir Ashraf 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).

  • Dual beam acousto-optic tunable spectrometer
    Patent number: 5039855
    Abstract: A dual beam acousto-optic tunable spectrometer utilizes an optics system to isolate the two radiation beams tuned by an acousto-optic filter, one of which is used to analyze a sample, the other of which is used as a reference. The tuning of the filter and the analysis of the signals is conducted by a microprocessor, which corrects for the many possible sources of noise. A new fluid sample cell utilizing glass balls to collimate radiation incident on the sample and focus radiation transmitted from the sample, is also disclosed.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: August 13, 1991
    Assignee: Bran+Luebbe Analyzing Technologies, Inc.
    Inventors: Gabor J. Kemeny, Carl G. Soryn, Howard Mark, Robert E. Rachlis, James Evans, Aamir Ashraf