Patents by Inventor Alan Renshaw

Alan Renshaw 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).

  • Device for analyzing chemical substance
    Patent number: 4594533
    Abstract: The present invention concerns a device for analyzing chemical substances and monitoring chemical reactions in which cuvettes on a turntable are rapidly scanned by light at test and reference wavelengths and intensity of the light after passage through the cuvettes monitored by a photodetector. The output of the photodetector is logically processed so that measurements can be made of the varying optical densities in the samples scanned.
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: June 10, 1986
    Assignee: National Research Development Corp.
    Inventors: Martin Snook, James M. Rideout, Alan Renshaw
  • Turntable device for analyzing chemical substances
    Patent number: 4329061
    Abstract: The present invention concerns a device for analyzing chemical substances and monitoring chemical reactions in which cuvettes on a turntable are rapidly scanned by light at test and reference wavelengths and intensity of the light after passage through the cuvettes monitored by a photodetector. The output of the photodetector is logically processed so that measurements can be made of the varying optical densities in the samples scanned.
    Type: Grant
    Filed: June 15, 1979
    Date of Patent: May 11, 1982
    Assignee: National Research Development Corporation
    Inventors: Martin Snook, James M. Rideout, Alan Renshaw
  • Micro-sampling device
    Patent number: 4152939
    Abstract: A device for obtaining a micro-sample of a liquid specimen, and includes a specimen container with a longitudinal capillary bore and a solid probe on a support which may be inserted totally or partially into the capillary bore to displace a micro-sample of known volume from the bore of the container. The device may be used for any liquid specimen for which micro-samples are required such as blood plasma.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: May 8, 1979
    Inventor: Alan Renshaw