Patents by Inventor Richard F. Buchholz

Richard F. Buchholz 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).

  • Spray-dried urea-formaldehyde and lignosulfonate compositions
    Patent number: 5501720
    Abstract: A delayed release fertilizer composition consisting essentially of a mixture of a urea-formaldehyde resin and a lignosulfonate prepared by spray-drying an aqueous mixture of a urea-formaldehyde resin and a lignosulfonate. The composition of this invention, is also use as a fertilizer carrier as a replacement for expanded vermiculite fertilizers.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: March 26, 1996
    Assignee: Georgia-Pacific Corporation
    Inventor: Richard F. Buchholz
  • Particulate fertilizer dust control
    Patent number: 5360465
    Abstract: Fugitive dust emission from granular inorganic fertilizers is controlled by applying a solution of urea and lignosulfonate.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: November 1, 1994
    Assignee: Georgia-Pacific Corporation
    Inventors: Richard F. Buchholz, Dale W. Quinn
  • Drying cellulosic pulp
    Patent number: 5114534
    Abstract: A process for reducing the energy requirements for drying a cellulosic pulp slurry by contacting a pulp slurry with sodium sulfate before web formation, dewatering and drying.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: May 19, 1992
    Assignee: Georgia-Pacific Corporation
    Inventors: Donald G. Rachor, Richard F. Buchholz