Patents by Inventor David W. Duan

David W. Duan 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).

  • Methods and compositions for fining fermentable beverages
    Patent number: 11015158
    Abstract: The present disclosure relates to methods and compositions for fining fermentable beverages, such as alcoholic fermentable beverages, for example, wine, beer, lager, ale, cider, perry, spirit and liqueur. The compositions herein comprise a pectin and carrageenan which are used to treat the beverage prior to fermentation.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: May 25, 2021
    Assignee: DANSTAR FERMENT AG
    Inventors: David W. Duan, Peter J. Rogers, Eric Wilkes
  • CALCIUM REDUCING AGENTS AND METHODS
    Publication number: 20180265828
    Abstract: The present disclosure relates to agents and methods for reducing calcium in beverages, in particular alcoholic and fermented beverages such as wine, beer, lager, ale, cider and perry. The agent comprises a pectin in a powder form or a salt thereof.
    Type: Application
    Filed: May 1, 2018
    Publication date: September 20, 2018
    Inventors: David W. DUAN, Peter J. ROGERS, Eric WILKES
  • CALCIUM REDUCING AGENTS AND METHODS
    Publication number: 20150353877
    Abstract: The present disclosure relates to agents and methods for reducing calcium in beverages, in particular alcoholic and fermented beverages such as wine, beer, lager, ale, cider and perry. The agent comprises a pectin in a powder form or a salt thereof.
    Type: Application
    Filed: April 10, 2015
    Publication date: December 10, 2015
    Inventors: DAVID W. DUAN, PETER J. ROGERS, ERIC WILKES
  • METHODS AND COMPOSITIONS FOR FINING FERMENTABLE BEVERAGES
    Publication number: 20150353878
    Abstract: The present disclosure relates to methods and compositions for fining fermentable beverages, such as alcoholic fermentable beverages, for example, wine, beer, lager, ale, cider, perry, spirit and liqueur. The compositions herein comprise a pectin and carrageenan which are used to treat the beverage prior to fermentation.
    Type: Application
    Filed: April 10, 2015
    Publication date: December 10, 2015
    Inventors: DAVID W. DUAN, Peter J. Rogers, Eric Wilkes
  • METHODS AND COMPOSITIONS FOR FINING FERMENTABLE BEVERAGES
    Publication number: 20100178384
    Abstract: The present disclosure relates to methods and compositions for fining fermentable beverages, such as alcoholic fermentable beverages, for example, wine, beer, lager, ale, cider, perry, spirit and liqueur. The compositions herein comprise a pectin and carrageenan which are used to treat the beverage prior to fermentation.
    Type: Application
    Filed: June 4, 2008
    Publication date: July 15, 2010
    Inventors: David W. Duan, Peter J. Rogers, Eric Wilkes
  • CALCIUM REDUCING AGENTS AND METHODS
    Publication number: 20100040756
    Abstract: The present invention relates to agents and methods for reducing calcium in beverages, in particular alcoholic and fermented beverages such as wine, beer, larger, ale, cider and perry. The agent comprises a pectin or a salt thereof.
    Type: Application
    Filed: January 25, 2008
    Publication date: February 18, 2010
    Inventors: David W. Duan, Peter J. Rogers, Eric Wilkes