Patents by Inventor Ralf Friedrich

Ralf Friedrich 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: 11981304
    Abstract: A multi-circuit, hydraulically open brake system includes a first pressure generator assigned to a main system with a first energy supply and a first evaluation and control unit (ECU), and is connectable via a first shut-off valve to wheel brake(s) of a first brake circuit and via a second shut-off valve to wheel brake(s) of a second brake circuit. A second pressure generator is assigned to a secondary system which includes a second energy supply and a second ECU, and is connectable via a third shut-off valve to wheel brake(s) of the first brake circuit and via a fourth shut-off valve to wheel brake(s) of the second brake circuit. The second ECU controls the second pressure generator. Components of the modulation unit for individual brake pressure modulation are assigned to the main system, and the components are controlled by the first ECU and are supplied by the first energy supply.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: May 14, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Friedrich, Dirk Drotleff, Ralf Kleemann, Daniel Brenndoerfer, Bernd Hienz
  • Publication number: 20240132727
    Abstract: A molecular assembly having a structural formation of amphiphilic molecules is disclosed where the amphiphilic molecules are selected from a group containing amphiphilic molecules which a) have a hydrophobic moiety and a hydrophilic moiety b) are soluble in a polar aprotic solvent and form self-organizing layer structures in the absence of the polar aprotic solvent, and c) orient molecularly in formed layer structures at an interfacial layer, or in an aqueous environment. The amphiphilic molecules in the formed layer structure are in contact with an aqueous environment. A method for coating a solid surface with a molecular assembly is also disclosed, wherein the amphiphilic molecules are dissolved in a polar aprotic solvent, and resulting solution is applied to a solid surface by spin coating.
    Type: Application
    Filed: February 23, 2022
    Publication date: April 25, 2024
    Applicant: LEIBNIZ-INSTITUT FÜR POLYMERFORSCHUNG DRESDEN E. V
    Inventors: JENS FRIEDRICHS, RALF HELBIG, LARS DAVID RENNER, TILO POMPE, JENS-UWE SOMMER, CARSTEN WERNER
  • Patent number: 11460342
    Abstract: To enable a simple mounting and alignment of an optoelectronic measuring device in its operating position, a fastening system is provided for fastening the optoelectronic measuring device. The fastening system includes a fastening section provided at a surface of a housing of the measuring device. An adjustment adapter has a first element for connection to the fastening section and is provided for the alignment of the measuring device in the operating position. The fastening section rises from the surface of the housing and forms a platform having a groove and a latch cutout at at least one side located perpendicular to the surface of the housing. The first element of the adjustment adapter has a tongue element formed with shape matching the groove and a latching protrusion formed with shape matching the latch cutout. The fastening section and the adjustment adapter are latchinigly connectable to one another without tools.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: October 4, 2022
    Assignee: SICK AG
    Inventors: Christof J. Meyer, Ralf Friedrich
  • Publication number: 20220011155
    Abstract: To enable a simple mounting and alignment of an optoelectronic measuring device in its operating position, a fastening system is provided for fastening the optoelectronic measuring device. The fastening system includes a fastening section provided at a surface of a housing of the measuring device. An adjustment adapter has a first element for connection to the fastening section and is provided for the alignment of the measuring device in the operating position. The fastening section rises from the surface of the housing and forms a platform having a groove and a latch cutout at at least one side located perpendicular to the surface of the housing. The first element of the adjustment adapter has a tongue element formed with shape matching the groove and a latching protrusion formed with shape matching the latch cutout. The fastening section and the adjustment adapter are latchinigly connectable to one another without tools.
    Type: Application
    Filed: July 9, 2021
    Publication date: January 13, 2022
    Inventors: Christof J. MEYER, Ralf FRIEDRICH
  • Patent number: 9291303
    Abstract: A fastening apparatus having a base part (4) for fastening and/or adjusting a light grid housing (1) having a partly round housing cross-section (34) in a housing section at an assembly body (12), wherein the base part (4) has an open receiver (24) for the light grid housing (1), wherein the receiver (24) forms a circular section (30) in cross-section and the circular section (30) has an angle (?) of more than 180 degrees, wherein the receiver (24) of the base part (4) is slightly smaller than the partly round housing cross-section (34) of the housing section, wherein the light grid housing (1) is arranged in the receiver (24) and is held by the receiver (24) by force transmission.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: March 22, 2016
    Assignee: SICK AG
    Inventors: Ralf Friedrich, Christof J. Meyer, Christian Klingelhofer
  • Publication number: 20140064825
    Abstract: A fastening apparatus having a base part (4) for fastening and/or adjusting a light grid housing (1) having a partly round housing cross-section (34) in a housing section at an assembly body (12), wherein the base part (4) has an open receiver (24) for the light grid housing (1), wherein the receiver (24) forms a circular section (30) in cross-section and the circular section (30) has an angle (?) of more than 180 degrees, wherein the receiver (24) of the base part (4) is slightly smaller than the partly round housing cross-section (34) of the housing section, wherein the light grid housing (1) is arranged in the receiver (24) and is held by the receiver (24) by force transmission.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 6, 2014
    Applicant: SICK AG
    Inventors: Ralf FRIEDRICH, Christof J. MEYER, Christian KLINGELHOFER
  • Patent number: 8090185
    Abstract: A method for optical inspection, detection and visualization of defects (9) on wafers (2) is disclosed, wherein at least one camera (5) acquires images of at least one portion (11) of the wafer (2) relative to a reference point (12) of the wafer (2), and the Cartesian coordinates of the image data associated with the at least one portion (11) of the wafer (2) are transformed into polar coordinates.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: January 3, 2012
    Assignee: Vistec Semiconductor Systems GmbH
    Inventors: Ralf Friedrich, Daniel Skiera
  • Publication number: 20090292390
    Abstract: An operating device for operating a machine tool has a touch-sensitive contact area and is constructed to generate in response to a contact by an element upon the contact area over a length an output signal in correspondence to the length for controlling a movement of a machine element in a direction of an axis of the machine tool. The operating device is insensitive to particles of dirt, liquids and/or gases which surround the operating device.
    Type: Application
    Filed: May 18, 2009
    Publication date: November 26, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventor: RALF FRIEDRICH
  • Patent number: 7623698
    Abstract: The invention relates to a method of learning a knowledge-based database used in automatic defect classification. According to this method, the user is spared a series of entries as the system carries out an automatic learn mode, which requires a reduced number of user entries.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: November 24, 2009
    Assignee: KLA-Tencor MIE GmbH
    Inventors: Dirk Soenksen, Ralf Friedrich, Andreas Draeger, Detlef Schupp, Thin Van Luu, Wolfgang Langer
  • Publication number: 20090161097
    Abstract: A method for optical inspection, detection and visualization of defects (9) on wafers (2) is disclosed, wherein at least one camera (5) acquires images of at least one portion (11) of the wafer (2) relative to a reference point (12) of the wafer (2), and the Cartesian coordinates of the image data associated with the at least one portion (11) of the wafer (2) are transformed into polar coordinates.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 25, 2009
    Applicant: VISTEC Semiconductor Systems GmbH
    Inventors: Ralf Friedrich, Daniel Skiera
  • Publication number: 20090046066
    Abstract: An operating device for operating a machine tool, a production machine and/or a machine in the form of a robot, includes a screen which is able to simultaneously display a first operating window and a second operating window. A first application for operating the machine can be displayed in the first operating window, and a second application for operating the machine can be displayed in the second operating window. The first application is operated using first operating buttons which are associated with the first operating window, and the second application is operated using second operating buttons which are associated with the second operating window. The first operating buttons are arranged along an individual side or a plurality of sides of the first operating window, and the second operating buttons are arranged along an individual side or a plurality of sides of the second operating window.
    Type: Application
    Filed: August 11, 2008
    Publication date: February 19, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: RALF FRIEDRICH, Klaus Hertinger, Uwe Scheuermann
  • Publication number: 20080208523
    Abstract: A method of determining geometric parameters of a wafer (16) is disclosed. For this purpose, the wafer (16) is inserted in a wafer holder (30). The wafer holder (30) is equipped with at least three mechanical contacting elements (22). The wafer is in mechanical contact with the contacting elements (22). The contacting elements (22) are distributed on the wafer holder (30) in such a way that they define a geometric figure which is configured such that the center point (40) of the wafer (16) comes to lie within the geometric figure. The position of each contacting element (22) is determined. Each desired geometric parameter of the wafer (16) is then calculated from the position of the contacting elements (22).
    Type: Application
    Filed: February 25, 2008
    Publication date: August 28, 2008
    Applicant: VISTEC Semiconductor Systems GmbH
    Inventors: Rene Schenck, Ralf Friedrich, Thomas Iffland, Daniel Skiera
  • Publication number: 20080152820
    Abstract: Peelable polymeric protective films on surfaces, in particular on metallic surfaces, which exhibit an oxygen gradient, and a process for producing such protective films. The films are particularly suitable for providing surfaces with temporary protection.
    Type: Application
    Filed: February 24, 2006
    Publication date: June 26, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Helmut Witteler, Ralf Friedrich, Walter Bertkau, Michael Ehle
  • Patent number: 7348536
    Abstract: A light grid which has a housing made from an extruded profile. An electronic component plate is movably insertable into the interior of the housing and carries the optical components of an emitter unit or a receiver unit, respectively. The housing has a support plate and an intermediate web which connect spaced-apart side walls of the profile and include openings. The support plate also has openings into which corresponding optical function elements are inserted. The openings in the intermediate webs serve as apertures. To precisely align the component plate with the optoelectronic components thereon relative to the housing, positioning pins are inserted through openings in the support plate and the intermediate web and which further engage locating holes in the component plate.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: March 25, 2008
    Assignee: Sick AG
    Inventors: Guenter Bockel, Ralf Friedrich, Christof Meyer, Martin Wuestefeld
  • Publication number: 20060245634
    Abstract: The invention relates to a method of learning a knowledge-based database used in automatic defect classification. According to this method, the user is spared a series of entries as the system carries out an automatic learn mode, which requires a reduced number of user entries.
    Type: Application
    Filed: June 3, 2004
    Publication date: November 2, 2006
    Inventors: Dirk Soenksen, Ralf Friedrich, Andreas Draeger, Detlef Schupp, Thin Van Luu, Wolfgang Langer
  • Patent number: 7085471
    Abstract: A strip-like housing of a light grid has two side walls that extend over its entire housing length and that are joined together by cross braces. The cross braces form a honeycomb structure, in which the transmitting and receiving elements of the light grid are installed.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: August 1, 2006
    Assignee: Sick AG
    Inventors: Guenter Boeckel, Ralf Friedrich, Christof Meyer, Martin Wuestefeld
  • Publication number: 20060068624
    Abstract: A light grid which has a housing made from an extruded profile. An electronic component plate is movably insertable into the interior of the housing and carries the optical components of an emitter unit or a receiver unit, respectively. The housing has a support plate and an intermediate web which connect spaced-apart side walls of the profile and include openings. The support plate also has openings into which corresponding optical function elements are inserted. The openings in the intermediate webs serve as apertures. To precisely align the component plate with the optoelectronic components thereon relative to the housing, positioning pins are inserted through openings in the support plate and the intermediate web and which further engage locating holes in the component plate.
    Type: Application
    Filed: September 22, 2005
    Publication date: March 30, 2006
    Applicant: Sick AG
    Inventors: Guenter Boeckel, Ralf Friedrich, Christof Meyer, Martin Wuestefeld
  • Patent number: D734193
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: July 14, 2015
    Assignee: SICK AG
    Inventors: Ralf Friedrich, Christof J. Meyer, Michael Thurnherr
  • Patent number: D765529
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: September 6, 2016
    Assignee: SICK AG
    Inventors: Ralf Friedrich, Christof J. Meyer, Michael Thurnherr
  • Patent number: D984913
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: May 2, 2023
    Assignee: SICK AG
    Inventors: Ralf Friedrich, Ossama Dreibati