Patents by Inventor Jean-Claude Villettaz

Jean-Claude Villettaz 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).

  • Method and equipment for measuring global volatile substances
    Patent number: 6397658
    Abstract: Measurement of volatile substances in a global manner with no prior separation of the different compounds, wherein the volatiles produced are collected by adsorption on an adsorbent surface, the collected substances are next desorbed directly in a detector, or desorbed and conveyed by means of an inert gas through a capillary tube to a detector, for analysis of the signals obtained.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: June 4, 2002
    Assignee: Brechbuhler AG
    Inventors: Jean-Claude Villettaz, Jean-Luc Luisier, Ramin Azodanlou
  • Method for production of a low alcoholic wine
    Patent number: 4675191
    Abstract: Generating a low alcohol content wine by oxidizing the glucose content in unfermented grape juice to gluconic acid through treatment of the juice with glucose oxidase in the presence of oxygen followed by fermentation.The process may be carried out to adjust the acidity of the wine, in which only a small proportion of the glucose is oxidized.
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: June 23, 1987
    Assignee: Novo Industri A/S
    Inventor: Jean-Claude Villettaz
  • Enzymatic treatment of wine and must
    Patent number: 4439455
    Abstract: The filterability of wine and must obtained from grapes infected with the mold Botrytis cinerea is improved by treatment thereof with an enzyme product produced by cultivating the microorganism Trichoderma harzianum. The enzyme product exhibits both alpha- and beta-glucanase activity.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: March 27, 1984
    Assignee: Novo Industri A/S
    Inventor: Jean-Claude Villettaz