Patents by Inventor Christian Hoffmann

Christian Hoffmann 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 FOR PRODUCING CONNECTING ELEMENTS BY WAY OF A PRESSURE WELDING PROCESS AND CONNECTING ELEMENT
    Publication number: 20110293363
    Abstract: The method is used to produce connecting elements (1). The connecting elements (1) are intended for coupling functional elements for applications in the field of oil drilling technology. The connecting element comprises two end pieces (2, 3) and at least one spacer (4) connecting the end pieces to each other. At least one spacer (4) is connected to at least one of the end pieces (2, 3) by pressure welding.
    Type: Application
    Filed: July 18, 2009
    Publication date: December 1, 2011
    Applicant: BLOHM + VOSS REPAIR GMBH
    Inventors: Jens Lutzhöft, Jörn Grotherr, Christian Hoffmann, Heiko Junge
  • Magnetic field and field gradient enhanced centrifugation solid-liquid separations
    Patent number: 8012357
    Abstract: This invention relates to a continuous or batch centrifugation solid-liquid separation process comprising simultaneously subjecting the solid-liquid mixture to localized magnetic field gradients and the centrifugation and to improved centrifugation solid-liquid separation processes wherein the improvement comprises simultaneously subjecting the solid-liquid mixture to a homogeneous magnetic field, a magnetic field gradient or both prior to and/or during the centrifugation.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: September 6, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Benjamin C. Fuchs, Christian Hoffmann, Karsten Keller, Christopher M. Rey
  • Transdermal therapeutic system
    Patent number: 7991464
    Abstract: The present invention relates to a transdermal therapeutic system for the controllable release of an active ingredient, particularly a substance promoting wound healing, to a chronic wound or for chemotherapy, with at least one waveguide, wherein the active ingredient is deposited on the waveguide via a bond that is cleavable by electromagnetic pulses in the waveguide.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: August 2, 2011
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Katrin Schmitt, Christian Hoffmann
  • Transformer arrangement with a piezoelectric transformer
    Patent number: 7990028
    Abstract: A transformer arrangement with a piezoelectric transformer and a carrier will be disclosed. The transformer has a body in the form of a board. The transformer operates with thickness mode vibrations. The body is rigidly connected to the carrier in at least one peripheral region in which anti-nodes of a horizontal oscillation of the body appear.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: August 2, 2011
    Assignee: EPCOS AG
    Inventors: Christian Hoffmann, Igor Kartashev, Patrick Schmidt-Winkel
  • REMOVABLE ANTIMICROBIAL COATING COMPOSITIONS CONTAINING ACID-ACTIVATED RHEOLOGY AGENT AND METHODS OF USE
    Publication number: 20110182959
    Abstract: A method is provided for controlling microorganisms comprising coating a surface with a removable, antimicrobial film-forming composition. More specifically, the removable, antimicrobial film-forming composition comprises at least one antimicrobial agent and at least one acid-activated rheology agent.
    Type: Application
    Filed: July 26, 2010
    Publication date: July 28, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY.
    Inventors: William R. Cahill, Carl W. Erkenbrecher, JR., Christian Hoffmann, Shaun F. Malone
  • REMOVABLE ANTIMICROBIAL COATING COMPOSITIONS CONTAINING CATIONIC RHEOLOGY AGENT AND METHODS OF USE
    Publication number: 20110177146
    Abstract: A method is provided for controlling microorganisms comprising coating a surface with a removable, antimicrobial film-forming composition. More specifically, the method relates to a removable antimicrobial coating composition comprising a cationic rheology agent.
    Type: Application
    Filed: July 26, 2010
    Publication date: July 21, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: William R. Cahill, Carl W. Erkenbrecher, JR., Christian Hoffmann, Shaun F. Malone
  • ENZYMATIC IN SITU PREPARATION OF PERACID-BASED REMOVABLE ANTIMICROBIAL COATING COMPOSITIONS AND METHODS OF USE
    Publication number: 20110177148
    Abstract: In-situ enzymatic preparation of peracid-based removable antimicrobial coating compositions and their methods of use for controlling microorganisms at various loci are disclosed.
    Type: Application
    Filed: July 26, 2010
    Publication date: July 21, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Robert Dicosimo, Carl W. Erkenbrecher, JR., Christian Hoffmann, Lynn Leger, Mark S. Payne, Christina S. Stauffer
  • PROCESSES FOR PRODUCING POLYTRIMETHYLENE ETHER GLYCOL AND COPOLYMERS THEREOF
    Publication number: 20110152498
    Abstract: Processes for producing polytrimethylene ether glycol and copolymers thereof are provided wherein, by condensing and recycling at least a portion of the vapor phase produced as the reaction progresses, the yield loss and polymer color are reduced.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 23, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Christian Hoffmann, Scott Christopher Jackson, Edward R. Murphy, Bhuma Rajagopalan
  • ENANTIOSELECTIVE ZWITTERIONIC ION-EXCHANGE MATERIAL
    Publication number: 20110121229
    Abstract: An enantioselective zwitterionic ion-exchange material comprising a chiral selector component (SO) comprising at least one cation exchange group and at least one anion exchange group and a carrier, carrying said selector component, wherein the chiral selector component comprises at least one chiral linker moiety to connect said ion exchange groups in a non-macro-cyclic fashion, and said chiral linker moiety contains at least one ?-? interaction site.
    Type: Application
    Filed: May 11, 2009
    Publication date: May 26, 2011
    Applicant: UNIVERSITAET WIEN
    Inventors: Wolfgang Lindner, Michael Laemmerhofer, Christian Hoffmann
  • Method for determining an air ratio in a burner for a fuel cell heater, a fuel cell heater
    Patent number: 7931467
    Abstract: A method for determining an air ratio in a burner for a fuel cell heater having an ionization sensor in the range of the flame and which is fed with two different gases for combustion, one of said gases being obtained from a gas treatment, wherein a measurement signal of the ionization sensor is converted into an actual value for the air ratio depending on one or more variable of states of the gas treatment.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: April 26, 2011
    Assignee: Baxi Innotech GmbH
    Inventors: Lutz Schilling, Philipp Klose, Christian Hoffmann
  • METHODS AND COMPOSITIONS FOR TREATING FERTILIZED AVIAN EGGS
    Publication number: 20100186674
    Abstract: The methods and compositions provide for increasing the productivity of quality hatchery eggs by applying a coating to the outer surface of the eggs. The liquid coating compositions and methods described herein facilitate mechanical enforcement of the shell, protection against adverse environmental conditions, prevention of contamination, differentiation of egg parentage and allow for appropriate gas exchange during storage or shipping periods.
    Type: Application
    Filed: January 25, 2010
    Publication date: July 29, 2010
    Applicant: E. I. du Pont de Nemours and Company
    Inventors: William R. Cahill, JR., Christian Hoffmann, Donna Lynn Leger, Shaun Francis Malone, Phillip Walker Strange, Katherine Lee Wilson
  • Transformer Arrangement with a Piezoelectric Transformer
    Publication number: 20100026435
    Abstract: A transformer arrangement with a piezoelectric transformer and a carrier will be disclosed. The transformer has a body in the form of a board. The transformer operates with thickness mode vibrations. The body is rigidly connected to the carrier in at least one peripheral region in which anti-nodes of a horizontal oscillation of the body appear.
    Type: Application
    Filed: August 26, 2009
    Publication date: February 4, 2010
    Inventors: Christian Hoffmann, Igor Kartashev, Patrick Schmidt-Winkel
  • Swirl tube separator
    Patent number: 7648544
    Abstract: Swirl tube separator for separating solids from a gas-solid containing feed comprising a tubular housing, an inlet for introducing a gas-solids mixture at one end of said housing, a solids outlet opening at the opposite end of said housing, and a co-axial positioned tubular gas outlet conduit placed at an end of said housing, wherein along the axis of the tubular housing a vortex extender pin is present.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: January 19, 2010
    Assignee: Shell Oil Company
    Inventors: Thomas Shawn Dewitz, Hubertus Wilhelmus Albertus Dries, Andreas Ekker, Jan Kater, Richard Addison Sanborn, Alex Christian Hoffmann, Weiming Peng
  • Piezoelectric Transformer
    Publication number: 20090236948
    Abstract: A piezoelectric transformer with a body that includes a first functional part and a second functional part is disclosed. The second functional part has inner electrodes, located in the body, which are connected to outer electrodes of this part. The first outer electrode of the first functional part is arranged parallel to the inner electrodes of the second functional part, wherein the minimum distance between the first outer electrode of the first functional part and the respective outer electrodes of the second functional part is selected greater than the distance between the first outer electrode of the first functional part and a terminal inner electrode of the second functional part facing it.
    Type: Application
    Filed: April 21, 2009
    Publication date: September 24, 2009
    Inventors: Christian Hoffmann, Igor Kartashev
  • TRANSDERMAL THERAPEUTIC SYSTEM
    Publication number: 20090208561
    Abstract: The present invention relates to a transdermal therapeutic system for the controllable release of an active ingredient, particularly a substance promoting wound healing, to a chronic wound or for chemotherapy, with at least one waveguide, wherein the active ingredient is deposited on the waveguide via a bond that is cleavable by electromagnetic pulses in the waveguide.
    Type: Application
    Filed: April 5, 2007
    Publication date: August 20, 2009
    Inventors: Katrin Schmitt, Christian Hoffmann
  • Module with Flat Construction and Method for Placing Components
    Publication number: 20090174054
    Abstract: A module for electrical components is proposed in which connection surfaces that can be bonded are provided on a multi-layer substrate with integrated wiring; a component chip is bonded on the top that has bond pads on its surface pointing upward and that contacts the substrate by means of bonding wires. Here, the wire guide of the bonding wires is so that they are each bonded with a ball on a connection surface and with the wedge directly on one of the bond pads.
    Type: Application
    Filed: January 12, 2009
    Publication date: July 9, 2009
    Inventors: Christian Block, Sebastian Brunner, Christian Hoffmann
  • Ceramic Material, Sintered Ceramic and Component Made Therefrom, Production Method and Use of the Ceramic
    Publication number: 20090155624
    Abstract: A ceramic mixed system is proposed that includes a two-phase mixture of pure components A and B, wherein phase A is based on the cubic to tetragonal modification of Bi3NbO7 and phase B is based on a monoclinic pyrochlore modification of Bi2(Zn2/3Nb4/3)O7. The electrical properties of ceramics produced therefrom make the material suitable for components having a multilayer structure in which capacitors and inductors are integrated and which can be used in data processing or signal processing.
    Type: Application
    Filed: November 21, 2008
    Publication date: June 18, 2009
    Inventors: Pavol Dudesek, Christian Hoffmann, Matjaz Valant, Danilo Suvorov
  • METHOD FOR DETERMINING AN AIR RATIO IN A BURNER FOR A FUEL CELL HEATER, A FUEL CELL HEATER
    Publication number: 20090130616
    Abstract: A method for determining an air ratio in a burner for a fuel cell heater having an ionization sensor in the range of the flame and which is fed with two different gases for combustion, one of said gases being obtained from a gas treatment, wherein a measurement signal of the ionization sensor is converted into an actual value for the air ratio depending on one or more variable of states of the gas treatment.
    Type: Application
    Filed: December 8, 2005
    Publication date: May 21, 2009
    Applicant: BAXI Innotech GmbH
    Inventors: Lutz Schilling, Philipp Klose, Christian Hoffmann
  • PREPARATION OF POLYTRIMETHYLENE ETHER GLYCOL OR COPOLYMERS THEREOF
    Publication number: 20090118464
    Abstract: This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof having a number-average molecular weight of at least about 250 g/mole by a polycondensation reaction using at least one acid catalyst.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 7, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Christian Hoffmann, Scott Christopher Jackson, Edward R. Murphy, Rupert Spence
  • PREPARATION OF POLYTRIMTHYLENE ETHER GLYCOL OR COPOLYMERS THEREOF
    Publication number: 20090118465
    Abstract: This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof by a polycondensation reaction using at least one acid catalyst, wherein the temperature of the reaction is controlled such that the average temperature during the first half of the reaction is higher than the average temperature during the second half of the reaction.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 7, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: David C. Confer, Mark Andrew Harmer, Christian Hoffmann, Scott Christopher Jackson, Sigridur Soley Kristjansdottir, Rupert Spence