Patents by Inventor Larry Filius

Larry Filius 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).

  • Anisole bromination
    Patent number: 5008464
    Abstract: An improved method for the production of 4-bromo-3-alkylanisole, particularly 4-bromo-3-methylanisole is described. The method involves establishing 3-alkylanisole as a vapor in a reaction zone of a reactor and establishing bromine as a vapor. Thereafter the bromine vapor is introduced to the reaction zone of the reactor and commingled with the established 3-alkylanisole vapor. Dibrominated impurity is substantially reduced.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: April 16, 1991
    Assignee: East Short Chemical Company
    Inventor: Larry Filius