Patents by Inventor Thomas E. Wiggens

Thomas E. Wiggens 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).

  • Patent number: 5157144
    Abstract: Compounds of the formula (I): ##STR1## and stereoisomers thereof, wherein X is halogen, alkyl, cycloalkyl, aralkyl, aryloxyalkyl, alkenyl, alkynyl, aryl, amino, arylazo, heteroarylalkyl, heteroaryloxyalkyl, acylamino nitro, nitrile, trifluoromethyl, --OR.sup.1, SR.sup.1, --CO.sub.2 R.sup.2, --CONR.sup.3 R.sup.4, --COR.sup.5, --CR.sup.6 .dbd.NR.sup.7, --N.dbd.CR8R.sup.9, --SOR.sup.10 or --SO.sub.2 R.sup.11 ; W, Y and Z, which may be the same or different, are any of the atoms or groups listed for X above and, in addition, may be hydrogen atoms; or any two of the groups W, X, Y and Z, in adjacent positions on the phenyl ring, optionally join to form a fused ring, either aromatic or aliphatic, optionally containing one or more heteroatoms; R.sup.1 is alkyl, or cycloalkyl optionally containing a heteroatom in the cycloalkyl ring, alkenyl, acyl, aryl, heteroaryl, aralkyl or heteroarylalkyl; R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.8, R.sup.9, R.sup.10 and R.sup.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: October 20, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventors: Vivienne M. Anthony, John M. Clough, Christopher R. A. Godfrey, Thomas E. Wiggens