Patents by Inventor Howard G. Davies

Howard G. Davies 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).

  • Cyclic imide derivatives, compositions and use
    Patent number: 5252560
    Abstract: Compounds are described of the formula ##STR1## wherein: R.sup.1 is C.sub.3-6 alkyl or C.sub.1-3 alkylthioC.sub.1-3 alkyl;R.sup.2 is an optionally substituted C.sub.1-6 alkyl or C.sub.1-6 alkoxy group, aryl, heteroaryl, arylC.sub.1-4 alkyl, heteroarylC.sub.1-4 alkyl or a side-chain of a natural .alpha.-amino acid;R.sup.3 is hydrogen, C.sub.1-6 alkyl, CHR.sup.4 COR.sup.5 (where R.sup.4 is a side-chain of a natural .alpha.-amino acid and R.sup.5 is hydroxyl, C.sub.1-6 alkoxy or NHR.sup.6 where R.sup.6 represents a hydrogen atom or a C.sub.1-6 alkyl group) or a group (CH.sub.2).sub.n X (where n is 1 to 6 and X is hydroxyl, C.sub.1-4 alkoxy, heteroaryl or a group NR.sup.7 R.sup.8 where R.sup.7 and R.sup.8 are each hydrogen or C.sub.1-6 alkyl or the group NR.sup.7 R.sup.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: October 12, 1993
    Assignee: Glaxo Inc.
    Inventors: Peter L. Myers, Andrew B. McElroy, Michael Gregson, Peter J. Brown, Howard G. Davies, David H. Drewry, Michael A. Foley