Patents by Inventor Anthony L. M. Riley

Anthony L. M. Riley 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).

  • Investigating body function
    Patent number: 4202876
    Abstract: Body function of a mammal is investigated using a .gamma.-emitting .sup.75 Se or .sup.123m Te labelled derivative of a bile acid or bile salt. Thus bowel function may be investigated by oral administration of the labelled compound followed, after a suitable period of time, by either a whole body count or a faecal count of radioactivity. Preferred bile acids and salts are substituted either at the 19-position or in the C-17 side chain.
    Type: Grant
    Filed: January 4, 1978
    Date of Patent: May 13, 1980
    Assignee: The Radiochemical Centre Limited
    Inventors: Reginald Monks, Anthony L. M. Riley
  • Labelled bile acids
    Patent number: 4172085
    Abstract: The present invention provides compounds having the general formula ##STR1## wherein R is ##STR2## and A is 0 or 1,B is 0 to 4,C is 0 to 4,Z is Se or Te,R.sup.6 is --OH or an amino acid residue,R.sup.7 is hydrogen or saturated C.sub.1 to C.sub.4 alkyl group, when A is 1,R.sup.8 is hydrogen or saturated C.sub.1 to C.sub.4 alkyl group,N is 0 or 1,R.sup.2, r.sup.3, r.sup.4 and R.sup.5 are independently hydrogen or an .alpha.- or .beta.-hydroxyl group, or an oxo group,H.sup.5 is an .alpha.- or .beta.-H.The subject compounds, particularly the gamma emitting isotopes, are useful in the investigation of body functions.
    Type: Grant
    Filed: January 4, 1978
    Date of Patent: October 23, 1979
    Assignee: The Radiochemical Centre Limited
    Inventors: Reginald Monks, Anthony L. M. Riley