Patents by Inventor Isabel Charles

Isabel Charles 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).

  • Esters of diatrizoic acid as X-ray contrast agents
    Patent number: 4567034
    Abstract: New X-ray contrast agents are provided which are esters of diatrizoic acid having the structure ##STR1## wherein R is an alkyl group of 10 to 22 carbons or a group of the structure ##STR2## wherein R.sup.1 is an alkyl group of 2 to 15 carbons. X-ray contrast medium containing the above X-ray contrast agent and a carrier therefor such as a liposome carrier, and a method for the X-ray visualization of body cavities and organs are also provided.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: January 28, 1986
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Isabel Charles, Malcolm Robinson