Patents by Inventor Barry Crowe

Barry Crowe 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).

  • Process for the purification of a C.sub.2 to C.sub.4 carboxylic acid and/or anhydride having halide impurities
    Patent number: 5814193
    Abstract: A process for the purification of a C.sub.2 to C.sub.4 carboxylic acid and/or an anhydride thereof having halide impurities, which process comprises the steps of (a) exposing the impure acid and/or anhydride to electromagnetic radiation under conditions of intensity, wavelength and temperature, and for a time, sufficient to convert at least a portion of the halide impurities to lower--and/or higher-boiling halide components and (b) separating the lower--and/or higher-boiling halide components formed in step (a) from the C.sub.2 to C.sub.4 carboxylic acid and/or anhydride. Also, a process for the purification of a C.sub.2 to C.sub.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: September 29, 1998
    Assignee: BP Chemicals Limited
    Inventor: Barry Crowe