Patents by Inventor William Copenhafer

William Copenhafer 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).

  • Flue Gas Treatment Process
    Publication number: 20150368051
    Abstract: An improved process is disclosed for conveying trona powder to be used in treating flue gas to remove impurities from the flue gas. The trona powder is pneumatically conveyed under controlled conditions wherein a. the temperature of the conveying air is maintained at less than 135 degrees F., preferably less than 130 degrees F., b. the relative humidity of the conveying air is maintained between about 15% and 50% and c.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 24, 2015
    Inventors: William Copenhafer, Gerald Niedringhaus, Aaron Reichl
  • Production of sodium sesquicarbonate and sodium carbonate monohydrate
    Publication number: 20070140945
    Abstract: A process for the production and recovery of crystalline sodium sesquicarbonate and of crystalline sodium carbonate monohydrate from aqueous liquors containing sodium carbonate and sodium bicarbonate. The crystalline products may optionally be heated or calcined to produce soda ash. The process is particularly suited for the recovery of soda ash from aqueous minewater streams obtained from solution mining of subterranean trona ore deposits.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 21, 2007
    Inventor: William Copenhafer
  • Peroxygen laundry bleach
    Patent number: 5194176
    Abstract: The invention provides a process to coat dry particles comprising sodium carbonate perhydrate to provide a stable dry particulate solid which releases hydrogen peroxide when contacted with an aqueous solution. The coated particles are readily soluble in water and/or stable when formulated into a solid detergent.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: March 16, 1993
    Assignee: FMC Corporation
    Inventors: William Copenhafer, Basil A. Guiliano, William A. Hills, Charles V. Juekle, Stephen Tomko