Patents by Inventor James B. Campbell, Jr.

James B. Campbell, Jr. 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).

  • Process for preparing pyrazolopyridine compounds
    Patent number: 4563525
    Abstract: Compounds of the formula (I): ##STR1## wherein R.sup.4 is hydrogen, D is oxygen or NR.sup.6, R.sup.1, R.sup.3, R.sup.6, R.sup.7 and R.sup.8 have defined values, and n is 1 or 2 are produced by internally cyclizing a compound of the formula (XV): ##STR2## wherein R.sup.19 is a value of R.sup.1 or hydrogen and, if R.sup.19 is hydrogen, reacting the cyclization product with R.sup.1 --Br and a weak base such as potassium carbonate.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: January 7, 1986
    Assignee: ICI Americas Inc.
    Inventor: James B. Campbell, Jr.
  • Pyrazolopyridine cycloalkanones and process for their preparation
    Patent number: 4546104
    Abstract: Novel tetrahydropyrazolo-[3,4-b]quinolinones, cyclopenta[b]pyrazolo-[4,3-e]pyridinones and cyclohepta[b]-pyrazolo[4,3-e]pyridinones, useful as anxiolytics having reduced side effects, are disclosed, including methods of preparation, pharmaceutical compositions containing them and intermediates used in their preparation.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: October 8, 1985
    Assignee: ICI Americas Inc.
    Inventors: James B. Campbell, Jr., Thomas M. Bare