Patents by Inventor Jurgen Lehmann

Jurgen Lehmann 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: 20160290112
    Abstract: There is provided a process of stimulating a subterranean formation via a wellbore fluid passage of a cased wellbore. The process includes, with a perforating gun, perforating at least casing to form at least one or more perforations effecting fluid communication, via the wellbore fluid passage, between a first zone of the subterranean formation and a treatment fluid source. Treatment fluid is then injected via the wellbore fluid passage, from the treatment fluid source to the first zone such that fracturing of the first zone is effected. The injecting of the treatment fluid is then suspended. A perforating gun is then deployed within the wellbore fluid passage via wireline. The casing is then perforated to form at least one or more perforations effecting fluid communication, via the wellbore fluid passage, between a second zone of the subterranean formation and the treatment fluid source.
    Type: Application
    Filed: April 2, 2015
    Publication date: October 6, 2016
    Inventors: James Frederick PYECROFT, Peter CHERNIK, Jurgen LEHMANN, David MEEKS
  • Publication number: 20060019693
    Abstract: The present invention is based on the fundamental idea that, in many applications, the intended communication partner differs, such as by his position or other features, which are easily influenced by the user, from all other potential and unintended communication partners (third parties) in such a manner that the transmission features of the contactless interface (that is, for example, of the radio channel) between him/her and a first radio station (FS1), which is seeking to set up the connection, fulfill a specified quality criterion that is not fulfilled by all other potential communication partners or in such a manner that such a difference in the transmission features can be brought about at least by modifying at least one operating parameter of the first radio station (FS1).
    Type: Application
    Filed: June 18, 2003
    Publication date: January 26, 2006
    Inventors: Peter Kopetzky, Jurgen Lehmann, Matthias Schneider-Hufschmidt
  • Patent number: 6767013
    Abstract: A turning device for individual sheets has at least one transport unit transporting individual sheets. At least one turning unit turns the individual sheets by 180° to turned sheets while they are being transported to a processing station arranged downstream. At least one vacuum element is arranged proximal to the at least one turning unit and transports the turned sheets in a direction toward the processing station arranged downstream.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: July 27, 2004
    Assignee: Mathias Bäuerle GmbH
    Inventor: Jürgen Lehmann
  • Publication number: 20040108643
    Abstract: An inserting device has at least one transport device having at least one first transport element for transporting envelopes. At least one downstream station is arranged downstream of the at least one transport device. The envelopes are supplied to the at least one downstream station such that the envelopes are deposited in the at least one downstream station in an overlap arrangement. The overlap arrangement can be an imbricated arrangement or a stacked overlap arrangement. An inserting unit is arranged downstream of the at least one downstream station, and the envelopes are supplied to the inserting unit in the overlap arrangement.
    Type: Application
    Filed: August 8, 2003
    Publication date: June 10, 2004
    Inventors: Ralph Pittelkow, Willi Markgraf, Jurgen Lehmann
  • Patent number: 6746015
    Abstract: A transport device for transporting flat goods has at least one transport belt having longitudinal edges and a transport area. At least one vacuum device and at least one guide with sidewalls are provided. The transport area of the at least one transport belt is arranged in the at least one guide such that at least one vacuum slot is formed between at least one of the longitudinal edges of the transport belt and one of the sidewalls neighboring the at least one longitudinal edge. The at least one transport belt has a profiling configured such that vacuum acts on the flat goods via the profiling.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: June 8, 2004
    Assignee: Mathias Bäuerle GmbH
    Inventor: Jürgen Lehmann
  • Publication number: 20030041571
    Abstract: A device for enveloping inserts in an envelope has at least one feeder for supplying first and second articles. A transporting device for the first and second articles received from the at least one feeder is arranged downstream of the at least one feeder. A first adhesive station with at least one applicator unit is configured to apply an adhesive onto the first article provided for forming an envelope, wherein the envelope is produced from the first article without waste. The at least one applicator unit is stationary during application of the adhesive onto the first article.
    Type: Application
    Filed: August 19, 2002
    Publication date: March 6, 2003
    Applicant: Mathias Bauerle GmbH
    Inventors: Jurg Paul Haller, Jurgen Lehmann, Willi Markgraf, Ralph Pittelkow, Robert Schlipf
  • Publication number: 20020171195
    Abstract: A turning device for individual sheets has at least one transport unit transporting individual sheets. At least one turning unit turns the individual sheets by 180° to turned sheets while they are being transported to a processing station arranged downstream. At least one vacuum element is arranged proximal to the at least one turning unit and transports the turned sheets in a direction toward the processing station arranged downstream.
    Type: Application
    Filed: May 3, 2002
    Publication date: November 21, 2002
    Applicant: Mathias Bauerle GmbH
    Inventor: Jurgen Lehmann
  • Publication number: 20020171196
    Abstract: A transport device for transporting flat goods has at least one transport belt having longitudinal edges and a transport area. At least one vacuum device and at least one guide with sidewalls are provided. The transport area of the at least one transport belt is arranged in the at least one guide such that at least one vacuum slot is formed between at least one of the longitudinal edges of the transport belt and one of the sidewalls neighboring the at least one longitudinal edge. The at least one transport belt has a profiling configured such that vacuum acts on the flat goods via the profiling.
    Type: Application
    Filed: May 9, 2002
    Publication date: November 21, 2002
    Applicant: Mathias Bauerle GmbH
    Inventor: Jurgen Lehmann
  • Patent number: 6211409
    Abstract: A process is disclosed for preparing di- or oligoamide alkoxylates. Diamides are prepared from carboxylic acids or carboxylic acid alkyl esters and di-, oligo-, or polyamines and are alkoxylated as a melt directly after their preparation, without any further intermediate preparation process.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: April 3, 2001
    Assignee: RWE-DEA Aktiengesellschaft fuer Mineraloel und Chemie
    Inventors: Ulrike Jacobs, Uwe Kaltwasser, Klaus Kwetkat, Ernst-Jürgen Lehmann
  • Patent number: 5032524
    Abstract: The invention relates to an apparatus and a process for the bubble-free gassing of liquids, especially of culture media for propagating tissue cultures by means of a porous membrane filament system, whereby liquid media and gas are introduced into the culture. The porous membrane filaments include both hydrophobic and hydrophobic filaments.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: July 16, 1991
    Assignee: Gesellschaft fur biotechnologische Forschung mbH (GBF)
    Inventors: Heino Buntemeyer, Jurgen Lehmann
  • Patent number: 4870018
    Abstract: In a process and an apparatus for the bubble-free gassing of liquids, especially of culture media for propagating tissue cultures, in which process and apparatus a gas exchange occurs across an immersed membrane sheet, to achieve simple, effective and as uniform as possible a distribution of the gas introduction and gas desorption without mechanical damage to the liquid constituents, a tubular membrane cage formed by hollow membrane filaments is suspended flexibly in the medium to be gassed and moved in a circular oscillating movement without true rotation. The gassing rate is controlled by altering the angular oscillating movement frequency and/or the radius of the circular path, or alternatively by altering the gas concentration and/or the pressure of the gas flowing into the membrane cage.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: September 26, 1989
    Assignee: Gesellschaft fur Biotechnologische Forschung mbH (GBF)
    Inventor: Jurgen Lehmann
  • Patent number: 4774187
    Abstract: The invention concerns an apparatus for growing cell cultures wherein the cultures are located in at least one liquid nutrient medium and the nutrient medium or media are introduced through at least one pump-driven feed line, and where a gas (oxygen, nitrogen, air or the like) is introduced into the head room above the liquid level of the closed container, the gas pressure being kept constant in the head room, this apparatus being designed in such a manner as to prevent effectively injury to the free cells perforce ejected when evacuating the nutrient media. To that end the invention provides an overflow line communicating with the liquid in the container and terminating outside this container, its free end being located so much above the liquid level in the container that the pressure generated by the liquid column in the overflow line balances the gas pressure in the container head room.
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: September 27, 1988
    Assignees: S Diessel Gmbh & Co., GBF Gesellschaft fuer biotechnologische Forschung mbH
    Inventor: Jurgen Lehmann
  • Patent number: 4477521
    Abstract: What is disclosed is a light-transparent body comprising a first coextruded layer of a first extrudable light-transparent synthetic resin and a second coextruded layer of a second extrudable light-transparent synthetic resin different from said first resin, wherein said first and second coextruded layers are adjacent and wherein at least said first layer contains a dyestuff capable of fluorescing in the visible region and said second, adjacent, layer is free of the dyestuff present in said first layer.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: October 16, 1984
    Assignee: Rohm GmbH
    Inventors: Jurgen Lehmann, Heinz Vetter, Wolfgang Arnold
  • Patent number: 3936317
    Abstract: A dishwashing and cleansing agent composition for manual dishwashing based upon anionic surface-active surfactants consists essentially of (A) from 20% to 90% by weight of a higher sulfonate or sulfate of the group of the alkyl sulfonates, olefin sulfonates, .alpha.-sulfofatty acid alkyl esters, dialkyl sulfosuccinic esters, alkylbenzene sulfonates and alkyl sulfates, each having 8 to 20 carbon atoms in the hydrophobic moiety, and (B) from 10% to 80% by weight of a mono- or polyglycol ether sulfate of a higher 1,2-alkanediol having 10 to 22 carbon atoms; as well as a dishwashing concentrate containing this composition and a method of using this composition.
    Type: Grant
    Filed: February 21, 1975
    Date of Patent: February 3, 1976
    Assignee: Henkel & Cie G.m.b.H.
    Inventors: Hans-Jurgen Lehmann, Martin Bischoff, Horst Baumann, Peter Krings