Patents by Inventor John M. Bloomer

John M. Bloomer 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).

  • Chemical process
    Patent number: 5209459
    Abstract: Process for the preparation of compounds of formula (I):Y--Mg--X (I)wherein Y is an optionally substituted phenyl or benzyl, and X is a halogen, by reaction of a compound of formula (II):Y--X (II)wherein Y and X have the meanings given above, with magnesium in a solvent, characterized in that the solvent is an acetal of formula (III): ##STR1## wherein R.sup.1 and R.sup.2 are independently alkyl having from 1 to 6 carbon atoms or when taken together form a dioxolane ring, and R.sup.3 is hydrogen or alkyl having from 1 to 6 carbon atoms.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: May 11, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Raymond V. H. Jones, John M. Bloomer