Patents by Inventor Stefan Wessel

Stefan Wessel 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).

  • Patent number: 11510865
    Abstract: The present disclosure relates generally to oral compositions and methods for freshening breath and oral cleansing, and more particularly, to oral compositions comprising a combination of an extract of magnolia and a hydrocarbon. The oral compositions are useful for improving oral health, including freshening breath and reducing the adherence of plaque to teeth.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: November 29, 2022
    Assignee: WM. WRIGLEY JR. COMPANY
    Inventors: Henk J. Busscher, Michael W. Dodds, Amarnath Maitra, Stefan Wessel, Henny C. Van Der Mei
  • Patent number: 10106830
    Abstract: The invention provides for methods of extracting and quantitating the number of microorganisms contained on or within in chewing gum.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: October 23, 2018
    Assignee: WM. WRIGLEY JR. COMPANY
    Inventors: Amarnath Maitra, Stefan Wessel, Henny C. Van Der Mei, Henk J. Busscher
  • Publication number: 20180200180
    Abstract: The present disclosure relates generally to oral compositions and methods for freshening breath and oral cleansing, and more particularly, to oral compositions comprising a combination of an extract of magnolia and a hydrocarbon. The oral compositions are useful for improving oral health, including freshening breath and reducing the adherence of plaque to teeth.
    Type: Application
    Filed: July 14, 2016
    Publication date: July 19, 2018
    Inventors: Henk J. BUSSCHER, Michael W. DODDS, Amarnath MAITRA, Stefan WESSEL, Henny C. VAN DER MEI
  • Publication number: 20160326565
    Abstract: The invention provides for methods of extracting and quantitating the number of microorganisms contained on or within in chewing gum.
    Type: Application
    Filed: January 9, 2015
    Publication date: November 10, 2016
    Applicant: WM. WRIGLEY JR. COMPANY
    Inventors: Amarnath MAITRA, Stefan WESSEL, Henny C. VAN DER MEI, Henk J. BUSSCHER
  • Patent number: 6969492
    Abstract: An exhaust-gas cleaning system includes a nitrogen oxide reduction catalytic converter for reducing nitrogen oxides which are contained in the exhaust gas. A reducing agent is introduced into the exhaust-gas flow and is in the form of a vapor. A reducing-agent metering device for the metered addition of the reducing agent or a reducing-agent precursor to the exhaust-gas flow includes a vaporizer, which is arranged in the exhaust system upstream of the nitrogen oxide reduction catalytic converter. As a heat source, the vaporizer has (1) a heatable deflector surface, onto which the reducing agent, which is supplied by a feed unit, is directed under pressure; or (2) a microwave generator.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: November 29, 2005
    Assignees: DaimlerChrysler AG, Dr. Ing. h.c.F. Porsche Aktiengesellschaft, Volkswagen Aktiengesellschaft, Audi Aktiengesellschaft, Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Christian Goerigk, Stefan Wessels
  • Patent number: 6502390
    Abstract: The present invention concerns a method and a system for feeding a reducing agent into a catalyst device. A first reservoir is provided and has a solid reducing agent, a second reservoir is provided and has a solvent for the solid reducing agent, and a reducing agent solutions is produced from the solid reducing agent and the solvent. The reducing agent solution is intermittently stored in a third reservoir, and the reducing agent solution is fed from the third reservoir into the catalyst device.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: January 7, 2003
    Assignees: Dr. Ing. h.c.F. Porsche Aktiengesellschaft, Audi AG, Bayerische Motoren Werke Aktiengesellschaft, DaimlerChrysler AG, Volkswagen AG
    Inventors: Christian Goerigk, Michael Illek, Stefan Wessels
  • Patent number: 6367320
    Abstract: A process for monitoring the operation of a system for the aftertreatment of exhaust gas utilizes respective temperature sensors assigned to catalysts in the exhaust gas system. In addition, a sensor for detecting the NOx content in the exhaust gas is assigned to a reduction catalyst. The detected values, or functions thereof, are in each case compared with the definable reference values and when these definable limit values are exceeded, a corresponding defect information is triggered.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: April 9, 2002
    Assignees: Dr. Ing. h.c.F. Porsche Aktiengellschaft, AUDi AG, Bayerische Motoren Werke Aktiengesellschaft, DaimlerChrysler AG, Volkswagon AG
    Inventors: Paul Kueper, Stefan Dietrich Peter, Michael Illek, Jens Mueller, Christian Goerigk, Stefan Wessels
  • Publication number: 20020023433
    Abstract: The present invention concerns a method and a system for feeding a reducing agent into a catalyst device. A first reservoir is provided and has a solid reducing agent, a second reservoir is provided and has a solvent for the solid reducing agent, and a reducing agent solution is produced from the solid reducing agent and the solvent. The reducing agent solution is intermittently stored in a third reservoir, and the reducing agent solution is fed from the third reservoir into the catalyst device.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 28, 2002
    Inventors: Christian Goerigk, Michael Illek, Stefan Wessels
  • Patent number: 5207515
    Abstract: To produce an inexpensive small size ball bearing, the inner ring races are formed of spherical segments which are connected to each other at flattened connection places. A row of balls is guided by a respective inner ring race contact point on each of the segments in the region of the attachment place between two segments. In a four point ball bearing, the single row of balls contacts two contact points, one on each spherical segment, that define the inner race and contacts two races formed in the outer ring. In a three point bearing, there are two axially spaced apart rows of balls and three spherical segments in an axial row, two of the spherical segments of the inner ring define two of the inner race contact points for one of the ball rows and two other spherical segments of the inner ring defined two of the inner race contact points for the other row of balls. In both embodiments, the outer ring is split into two parts, each having one contact point on it.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: May 4, 1993
    Assignee: FAG Kugelfischer Georg Schafer KGaA
    Inventors: Alois Weissgerber, Reinhard Hock, Stefan Wessel