Patents by Inventor Pralad Mistry

Pralad Mistry 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).

  • Anthanthrone derivatives
    Patent number: 5099071
    Abstract: A charge generating compound for use in electrophotographic devices of the formula: ##STR1## wherein: A and A.sup.1 are each independently selected from phenyl, substituted phenyl, quinolino, naphthyl and substituted naphthyl wherein the substituents are independently selected from halo, alkyl, alkoxy, alkylthio, phenyl, phenoxy, phenylthio, CF.sub.3, CH.sub.2 OH, CO.sub.2 R.sup.1, NHCOR.sup.1, COR.sup.1, NO.sub.2 and NR.sup.1 R.sup.2 ;R.sup.1 and R.sup.2 are each independently H or C.sub.1-6 -alkyl.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: March 24, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventors: Pralad Mistry, Prakash Patel