Patents by Inventor Stefan A. Wolff

Stefan A. Wolff 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).

  • Publication number: 20240118553
    Abstract: A partial beam splitter includes a substrate including a substrate material; and a coating arranged on at least one main surface of the substrate. Along a first direction which is parallel to a normal vector of the main surface, the substrate and all coatings having a total thickness. For a specific light beam having a specific wavelength within a range of 450 nm and 650 nm which is incident on the partial beam splitter along a second direction with an angle of 32° enclosed between a vector pointing in the first direction and a vector pointing in the second direction, the specific light beam after transmitting through the partial beam splitter has a phase having a phase difference of an absolute value of smaller than or equal to 30° compared to the case in which, under otherwise identical conditions, the partial beam splitter is replaced by a similar reference substrate.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 11, 2024
    Applicants: SCHOTT AG, SCHOTT Suisse SA
    Inventors: Ulf Brauneck, Clemens Ottermann, Frank-Thomas Lentes, Frank Wolff, Stefan Weidlich
  • Patent number: 10053038
    Abstract: A front carriage for a motor vehicle includes a bumper covering and a support structure, which supports the bumper covering. At least one support device supports the bumper covering against the support structure in the direction of the vehicle height (z) and enables a deformation movement of the bumper covering relative to the support structure in longitudinal vehicle direction (x) in the event of a crash.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: August 21, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Stefan Wolff
  • Publication number: 20170247002
    Abstract: A front carriage for a motor vehicle includes a bumper covering and a support structure, which supports the bumper covering. At least one support device supports the bumper covering against the support structure in the direction of the vehicle height (z) and enables a deformation movement of the bumper covering relative to the support structure in longitudinal vehicle direction (x) in the event of a crash.
    Type: Application
    Filed: February 27, 2017
    Publication date: August 31, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Stefan WOLFF
  • Patent number: 9545953
    Abstract: An instrument panel for a vehicle is provided. The instrument panel has a visible side and a rear side. The rear side has at least one free-space portion and at least one fastening portion, and the instrument panel can be fastened in the fastening portion to a vehicle structure of the vehicle. The instrument panel comprises at least one foam body, and the foam body is formed to be elastically deformable. The foam body is arranged between the visible side and the rear side and forms elastically deformable regions on the visible side, and the foam body forms additional elastically deformable regions in the at least one free-space portion on the rear side.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: January 17, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Stefan Wolff, Joachim Schaefer, Stephan Walter
  • Patent number: 9296428
    Abstract: A motor vehicle body is provided. The motor vehicle body includes a plate-like, three-dimensionally shaped cross member, of which a first flange supports a front, lower edge region of a windshield, and a second flange is supported against a structural element of the body. The cross member further encompasses a spacer that joins the two flanges and is elongated in the transverse direction of the vehicle, and which exhibits a sectional profile that extends horizontally along a straight line over the entire length of the cross member.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: March 29, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Stefan Wolff, Joachim Schaefer, Uwe Schmitz
  • Publication number: 20160068316
    Abstract: The invention relates to a welded part (1) made from plastic between the flexible walls of a container, in particular of a bag, with a stub (3) which is formed integrally on the welded part at the top and forms a pouring channel which connects the upper pouring opening of the stub to the lower pouring channel region (3a) of the lower welded region (2), wherein a barrier layer (6) is arranged in the pouring channel, which barrier layer (6) is opened by a projection (8) of a closure cap (7) which can be screwed onto the stub (3), wherein the projection (8) of the closure cap (7), which projection (8) reaches into the pouring channel (4), is fastened to the barrier layer (6), as a result of which the barrier layer (6) is removed completely or partially when the closure cap (7) is screwed open.
    Type: Application
    Filed: April 9, 2014
    Publication date: March 10, 2016
    Inventors: Stefan WOLFF, Ulrich FLEISCHER, Jean-Paul ROOSENDAAL, Frank RÖMER
  • Patent number: 9056632
    Abstract: A motor vehicle has a windshield and a radiator tank assembly that acts on the lower edge of the windshield and exhibits a guide pad extending on an interior side of the windshield. The guide pad is divided into a central and two lateral sections. The lateral sections are more flexible than the central section during exposure to a pressure acting on the windshield from outside.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: June 16, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joachim Schaefer, Uwe Schmitz, Stefan Wolff
  • Publication number: 20150137550
    Abstract: An instrument panel for a vehicle is provided. The instrument panel has a visible side and a rear side. The rear side has at least one free-space portion and at least one fastening portion, and the instrument panel can be fastened in the fastening portion to a vehicle structure of the vehicle. The instrument panel comprises at least one foam body, and the foam body is formed to be elastically deformable. The foam body is arranged between the visible side and the rear side and forms elastically deformable regions on the visible side, and the foam body forms additional elastically deformable regions in the at least one free-space portion on the rear side.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventors: Stefan Wolff, Joachim Schaefer, Stephan Walter
  • Patent number: 8979165
    Abstract: A motor vehicle having a windshield, A-pillars laterally enclosing the windshield and a window cross member connected to the A-pillars is provided. The window cross member supports a lower edge of the windshield in that it comprises a support section touching the windshield. The window cross member includes a point of action fastened to the A-pillar, which is offset in the direction of a surface normal of the windshield against the support section. The window cross member also includes a compressible section that connects the point of action with the support section.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: March 17, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Stefan Wolff, Uwe Schmitz, Joachim Schaefer
  • Patent number: 8926002
    Abstract: A motor vehicle body includes, but is not limited to a front hood, a windshield rising from a rear edge of the front hood and a cross member substantially extending over the width of the windshield, of which a front edge supports a front lower edge of the windshield and a rear edge is supported on a structural element of the body. A top side of the cross member faces the passenger cell and a bottom side faces the engine compartment. Between the front edge and the rear edge the cross member comprises at least one first region, in which the top side is concavely curved in a section plane running in vehicle longitudinal direction and which yields to a load by intensifying the curvature along an apex line yielding towards the engine compartment and pivoting of two zones extending on both sides of the apex line towards each other.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: January 6, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Joachim Schaefer, Uwe Schmitz, Stefan Wolff, Stephan Walter
  • Patent number: 8720978
    Abstract: A motor vehicle body with a front hood, a front window rising from a rear edge of the front hood, and an elongated cross member is provided. The elongated cross member includes a middle region curved channel-like in section in a vehicle longitudinal direction. A contact zone of the elongated cross member supports a lower edge of the front window and a longitudinal end supports the elongated cross member. A transition region is between the longitudinal end and the middle region and, in section in the vehicle longitudinal direction, is less curved than the middle region.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: May 13, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Joachim Schaefer, Uwe Schmitz, Stefan Wolff
  • Publication number: 20130341968
    Abstract: A motor vehicle body is provided. The motor vehicle body includes a plate-like, three-dimensionally shaped cross member, of which a first flange supports a front, lower edge region of a windshield, and a second flange is supported against a structural element of the body. The cross member further encompasses a spacer that joins the two flanges and is elongated in the transverse direction of the vehicle, and which exhibits a sectional profile that extends horizontally along a straight line over the entire length of the cross member.
    Type: Application
    Filed: December 3, 2012
    Publication date: December 26, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Stefan WOLFF, Joachim SCHAEFER, Uwe SCHMITZ
  • Publication number: 20130341964
    Abstract: A motor vehicle body is provided. The motor vehicle body includes a front bonnet, a front window rising out of a rear margin of the front bonnet and a cross member extending in width direction of the front window. A front flange of the cross member supports a front lower margin of the front window, a rear flange being supported on a structural element of the body, and a first intermediate piece extends from an upper rear margin of the front flange towards the rear flange. The rear flange is widened towards the front by a second intermediate piece beyond a support area of the structural element. The intermediate pieces are linked via a bending zone that is convex towards the engine compartment.
    Type: Application
    Filed: December 3, 2012
    Publication date: December 26, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Stefan WOLFF, Joachim SCHAEFER
  • Publication number: 20130257102
    Abstract: A motor vehicle has a windshield and a radiator tank assembly that acts on the lower edge of the windshield and exhibits a guide pad extending on an interior side of the windshield. The guide pad is divided into a central and two lateral sections. The lateral sections are more flexible than the central section during exposure to a pressure acting on the windshield from outside.
    Type: Application
    Filed: March 5, 2013
    Publication date: October 3, 2013
    Inventors: Joachim SCHAEFER, Uwe SCHMITZ, Stefan WOLFF
  • Publication number: 20130049400
    Abstract: A motor vehicle body includes, but is not limited to a front hood, a windshield rising from a rear edge of the front hood and a cross member substantially extending over the width of the windshield, of which a front edge supports a front lower edge of the windshield and a rear edge is supported on a structural element of the body. A top side of the cross member faces the passenger cell and a bottom side faces the engine compartment. Between the front edge and the rear edge the cross member comprises at least one first region, in which the top side is concavely curved in a section plane running in vehicle longitudinal direction and which yields to a load by intensifying the curvature along an apex line yielding towards the engine compartment and pivoting of two zones extending on both sides of the apex line towards each other.
    Type: Application
    Filed: August 20, 2012
    Publication date: February 28, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joachim SCHAEFER, Uwe SCHMITZ, Stefan WOLFF, Stephan WALTER
  • Patent number: 8062525
    Abstract: The process according to the invention for treating water in a treatment plant comprising a reaction chamber in which a biodegradable material present in the water is biodegraded at least partly by microorganisms, in the course of which, at least temporarily, water is transferred out of the reaction chamber into a separating chamber and the biodegradable material and the microorganisms are separated at least partly from the water therein, a return stream comprising biodegradable material and at least some of the microorganisms flowing out of the separating chamber into the reaction chamber via a recycle line, is characterized in that at least some of the following substances: a) the biodegradable material and b) the microorganisms are treated with ozone (O3), an amount of 15 to 150 milligrams of ozone per kilogram of dry substance of the biodegradable material and of the microorganisms being added per hour in the reaction chamber.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: November 22, 2011
    Assignee: L'Air Liquide Societe Anonyme Pour l'Etude Et l'Exploitation des Procedes Georges Claude
    Inventors: Jörg Schwerdt, Stefan Wolff, Jan Parmentier
  • Publication number: 20090301965
    Abstract: The process according to the invention for treating water in a treatment plant comprising a reaction chamber in which a biodegradable material present in the water is biodegraded at least partly by microorganisms, in the course of which, at least temporarily, water is transferred out of the reaction chamber into a separating chamber and the biodegradable material and the microorganisms are separated at least partly from the water therein, a return stream comprising biodegradable material and at least some of the microorganisms flowing out of the separating chamber into the reaction chamber via a recycle line, is characterized in that at least some of the following substances: a) the biodegradable material and b) the microorganisms are treated with ozone (O3), an amount of 15 to 150 milligrams of ozone per kilogram of dry substance of the biodegradable material and of the microorganisms being added per hour in the reaction chamber.
    Type: Application
    Filed: December 12, 2008
    Publication date: December 10, 2009
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Jörg SCHWERDT, Stefan Wolff, Jan Parmentier
  • Patent number: 7022874
    Abstract: A process for the preparation of polyisocyanates which contain one or more biuret groups, by reacting a) an aliphatic or cycloaliphatic isocyanate containing two or more isocyanate groups (isocyanate a) with b) a tertiary alcohol or a mixture of water and a tertiary alcohol (biuretizing agent b) at from 100 to 250° C.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: April 4, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Bruchmann, Stefan Wolff, Wolfgang Heider, Joachim Jähme, Werner Langer, Hans Renz
  • Patent number: 6933801
    Abstract: An apparatus and method for maximizing ac energy delivered to a load by minimizing energy reflected from a load, such as an RF power source coupled to a plasma load for substrate processing chambers, including a matching network, wherein the matching network couples an ac power source and load. The matching network having two transmissions lines that are inductively coupled for a fixed portion of their length, such length being at least one wavelength of the ac energy generated by the ac power source. The matching circuit providing continuously variable impedance matching through the use of fixed components.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: August 23, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Tsutomu Tanaka, Stefan A. Wolff
  • Publication number: 20040261801
    Abstract: Device for wrapping groups of filter segments with a wrapping material. The device includes a rolling channel defined between adjacent stretches of at least one first roller conveyor and at least one second roller conveyor. The rolling channel is structured and arranged to wrap the groups of filter segments with the wrapping material by rolling each of the groups of filter segments. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: April 30, 2004
    Publication date: December 30, 2004
    Inventors: Sonke Horn, Thorsten Scherbarth, Stefan Wolff