Patents by Inventor Urs Nyffeler

Urs Nyffeler 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).

  • Make-your-own smoking article with controlled burn rate
    Publication number: 20060021625
    Abstract: The burn rate of a “make-your-own” cigarette is controlled by applying an add-on material such as a refined form of fibrous cellulose to the paper sleeve and/or tobacco rod wrapper that are used to form the assembled cigarette.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Inventor: Urs Nyffeler
  • Cigarette and filter therefor
    Patent number: 5107863
    Abstract: A cigarette filter 12 comprises a rod of filter material having an inner zone 16 of 60% to 90% filter efficiency and an outer zone 18 of 10% to 40% filter efficiency, the inner zone occupying from 30% to 60% of the cross-sectional area of the filter. The filter is attached to a tobacco rod 10 by a tipping 14 having perforations 24 admitting air into the filter.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: April 28, 1992
    Assignee: Fabriques de Tabac Reunies, S.A.
    Inventors: Urs Nyffeler, Roger S. Slagle, Andreas Stathopoulos
  • Filter mouthpiece for a smoking article
    Patent number: 4942887
    Abstract: A filter mouthpiece for a smoking article comprises a rod end portion having a tube extending axially therethrough and a mouth end portion. The tube is open at each end and has perforations in its wall. The peripheral surface of the filter mouthpiece is rendered air permeable in at least one discrete area by means of perforations in an impermeable tipping, to admit air to the filter. When attached to a tobacco rod this filter mouthpiece provides a substantially constant dry particulate matter delivery throughout the smoking of the article.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: July 24, 1990
    Assignee: Fabriques de Tabac Reunies, S.A.
    Inventors: Ahmed Abdelgawad, Daniel Braem, Urs Nyffeler
  • Process for improving tobacco
    Patent number: 4709710
    Abstract: A culture of microorganisms requiring oxygen but capable of living anaerobically while using nitrates and/or nitrites as oxygen source, which are brought to their exponential growth phase under anaerobic conditions, and are made to react under like conditions on the nitrates and/or nitrites, until the nitrates and/or nitrites are reduced to the desired level and the effect of the microorganisms is then stopped.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: December 1, 1987
    Assignee: Fabriques De Tabac Reunies S.A.
    Inventors: Helmut Gaisch, Urs Nyffeler
  • Process for improving tobacco
    Patent number: 4572219
    Abstract: A process for reducing the content of nitrate and/or nitrite salts contained in tobacco is disclosed whereby tobacco is treated, under controlled aerobic conditions, with microorganisms capable of degrading nitrates and/or nitrites to other nitrogen-containing compounds, such as proteins and amino acids.
    Type: Grant
    Filed: January 19, 1979
    Date of Patent: February 25, 1986
    Assignee: Fabriques de Tabac Reunies S.A.
    Inventors: Helmut Gaisch, Urs Nyffeler