Patents by Inventor Rajgopal S. Menon

Rajgopal S. Menon 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).

  • Filter for gamma ray camera
    Patent number: 4852142
    Abstract: An alloy filter in the form of a plate made from a homogeneous alloy comprising 85-95 wt. % cadmium, 5-15 wt. % copper and up to 3 wt. % of incidental impurities is interposed between a collimator and sodium iodide crystal of a gamma camera. The alloy filter improves image resolution by allowing the passage only of emmissions which impinge substantially perpendicularly on the collimator, while filtering out others which impinge obliquely.
    Type: Grant
    Filed: May 5, 1988
    Date of Patent: July 25, 1989
    Inventors: Marrimuthoo Pillay, Rajgopal S. Menon