Patents by Inventor James A. Brient

James A. Brient 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 post-treatment of amine-based preservative-treated wood
    Publication number: 20080026152
    Abstract: Water-borne amine-based preservative-impregnated wood is post-treated by: (a) contacting the preservative-impregnated wood in a closed vessel with live steam; (b) collecting a water-containing condensate generated in the vessel; and (c) recovering the post-treated wood from the vessel.
    Type: Application
    Filed: July 28, 2006
    Publication date: January 31, 2008
    Inventors: James A. Brient, Kenneth M. Hardy, Gerald E. Davis
  • Removal of acidic organic contaminants from refinery waste water
    Patent number: 5705074
    Abstract: A process is described whereby phenolics and other water soluble, organic materials are removed from certain aqueous refinery waste streams by an extraction process whereby the brine is contacted with a hydrocarbon solvent containing at least about 2% by weight of a trialkylamine.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: January 6, 1998
    Assignee: Merichem Company
    Inventor: James A. Brient
  • Removal of guaiacol from cresylic acid feedstreams by heating with a strong acid
    Patent number: 5177269
    Abstract: A process is described for the removal of guaiacol from naturally occurring cresylic acid feed by heating the feed with a strong acid, particularly hydrochloric acid or sulfuric acid, to produce a purified cresylic acid product essentially free of guaiacol and other methoxy aromatic compounds without significant loss of cresylic acid product.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: January 5, 1993
    Assignee: Merichem Company
    Inventors: John A. Waters, James A. Brient
  • Removal of guaiacol from cresylic acid feedstreams
    Patent number: 5171895
    Abstract: Purification of cresylic acid by guaiacol removal from lignite-based feed as well as other naturally occurring sources of cresylic acid is accomplished by catalytic demethylation in the presence of an alumina catalyst. In the process of this invention, de-pitched, dephenolated creyslic acid is vaporized and passed over a high surface area, alumina catalyst at temperature ranges of between 350.degree. C. to 400.degree. C. and at vapor flow rates measured as liquid hourly space velocity (LHSV), of about 1 hr..sup.-1 to demethylate the guaiacol.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: December 15, 1992
    Assignee: Merichem Company
    Inventor: James A. Brient
  • Pyrolysis of naturally occurring cresylic acid mixtures
    Patent number: 5146010
    Abstract: A process for removing guaiacols from naturally-occurring cresylic acid mixtures by pyrolysis is described.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: September 8, 1992
    Assignee: Merichem Company
    Inventors: James A. Brient, Marvin H. Strunk, Jr.