Patents by Inventor Michael John Readhead

Michael John Readhead 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).

  • Quaternary ammonium compounds
    Patent number: 3998843
    Abstract: Compounds of the formula: ##STR1## wherein n is an integer selected from 3, 4 and 5 and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and A represent certain specified substituent groups. The compounds are inhibitors of acetylcholinesterase. Particularly preferred compounds are cis-2-(3-hydroxyphenyl)-1-pyrrolidinocyclohexane methobromide and cis-2-(3,6-dihydroxyphenyl)-1-pyrrolidinocyclohexane methiodide.
    Type: Grant
    Filed: June 4, 1973
    Date of Patent: December 21, 1976
    Assignee: Reckitt & Colman Products Limited
    Inventors: John William Lewis, Michael John Readhead