Patents by Inventor Ludwig Maier

Ludwig Maier 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: 11585303
    Abstract: A dual-fuel internal combustion engine includes: cylinders for combusting a first liquid fuel having a first ignitability in a first operating mode, and a second liquid fuel having a second lesser ignitability, in a second operating mode; a main injection system including a main injector for each cylinder, for feeding the first liquid fuel to the respective cylinders in the first operating mode and for feeding the second liquid fuel to the respective cylinders in the second operating mode; and a pilot injection system including a pilot injector for each cylinder, via which the first liquid fuel can is feedable to the respective cylinders in the second operating mode for igniting the second liquid fuel. The main and pilot injection systems are coupled such that in the second operating mode the first liquid fuel, is feedable to the respective main injector as a working fluid and/or a barrier fluid.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: February 21, 2023
    Assignee: MAN ENERGY SOLUTIONS SE
    Inventors: Johann Wloka, Ludwig Maier, Thomas Klaua
  • Publication number: 20210404427
    Abstract: A dual-fuel internal combustion engine includes: cylinders for combusting a first liquid fuel having a first ignitability in a first operating mode, and a second liquid fuel having a second lesser ignitability, in a second operating mode; a main injection system including a main injector for each cylinder, for feeding the first liquid fuel to the respective cylinders in the first operating mode and for feeding the second liquid fuel to the respective cylinders in the second operating mode; and a pilot injection system including a pilot injector for each cylinder, via which the first liquid fuel can is feedable to the respective cylinders in the second operating mode for igniting the second liquid fuel. The main and pilot injection systems are coupled such that in the second operating mode the first liquid fuel, is feedable to the respective main injector as a working fluid and/or a barrier fluid.
    Type: Application
    Filed: June 24, 2021
    Publication date: December 30, 2021
    Inventors: Johann WLOKA, Ludwig MAIER, Thomas KLAUA
  • Patent number: 10174729
    Abstract: An injector for a fuel supply system of an internal combustion engine, namely for a common rail fuel supply system of an internal combustion engine which is formed in particular as a large diesel internal combustion engine or ship's diesel internal combustion engine, having an injection nozzle, a control valve and a retaining body. The injection nozzle and the control valve form a clamped composite, and the composite formed of the injection nozzle and control valve can be mounted on the retaining body as a unit and disassembled from the retaining body as a unit.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: January 8, 2019
    Assignee: MAN Energy Solutions SE
    Inventors: Thomas Atzkern, Maximilian Indrich, Stefan Kern, Claudius Weber, Ludwig Maier, Holger Schaar, Wolfgang Wagner, Thomas Klaua, Harald Wellenkötter, Werner Wörle
  • Publication number: 20140007845
    Abstract: An injector for a fuel supply system of an internal combustion engine, namely for a common rail fuel supply system of an internal combustion engine which is formed in particular as a large diesel internal combustion engine or ship's diesel internal combustion engine, having an injection nozzle, a control valve and a retaining body. The injection nozzle and the control valve form a clamped composite, and the composite formed of the injection nozzle and control valve can be mounted on the retaining body as a unit and disassembled from the retaining body as a unit.
    Type: Application
    Filed: May 14, 2013
    Publication date: January 9, 2014
    Inventors: Thomas Atzkern, Maximilian lndrich, Stefan Kern, Claudius Weber, Ludwig Maier, Holger Schaar, Wolfgang Wagner, Thomas Klaua, Harald Wellenkötter, Werner Wörle
  • Patent number: 6776140
    Abstract: Fuel is conveyed by at least one high-pressure pump from a low-pressure region into a high-pressure region including a pressure-accumulator line consisting of at least two separate accumulator units connected to one another by means of feed lines, and to fuel injectors for the cylinders. The accumulator units each have an accumulator volume for serving at least two cylinders, and accumulator covers provided on both end faces. All the functional units are integrated into these accumulator covers in terms of fuel delivery and transfer, and at least one separate pump accumulator is arranged in the high-pressure region between the high-pressure pump and the assembled pressure-accumulator line. The pump accumulator is connected to at least one accumulator cover of an accumulator unit of the pressure-accumulator line for fuel conveyance and is capable of being acted upon by at least one high-pressure pump.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: August 17, 2004
    Assignee: Man B&W Diesel Aktiengesellschaft
    Inventors: Ludwig Maier, Christian Vogel, Christoph Schrott, Matthias Söngen, Jaroslav Hlousek, Bernd Kögler, Christian Graspeunter, Hagen Sassnik
  • Publication number: 20030094158
    Abstract: Fuel is conveyed by at least one high-pressure pump from a low-pressure region into a high-pressure region including a pressure-accumulator line consisting of at least two separate accumulator units connected to one another by means of feed lines, and to fuel injectors for the cylinders. The accumulator units each have an accumulator volume for serving at least two cylinders, and accumulator covers provided on both end faces. All the functional units are integrated into these accumulator covers in terms of fuel delivery and transfer, and at least one separate pump accumulator is arranged in the high-pressure region between the high-pressure pump and the assembled pressure-accumulator line. The pump accumulator is connected to at least one accumulator cover of an accumulator unit of the pressure-accumulator line for fuel conveyance and is capable of being acted upon by at least one high-pressure pump.
    Type: Application
    Filed: November 21, 2002
    Publication date: May 22, 2003
    Applicant: MAN B&W Diesel Aktiengesellschaft
    Inventors: Ludwig Maier, Christian Vogel, Christoph Schrott, Matthias Songen, Jaroslav Hlousek, Bernd Kogler, Christian Graspeunter, Hagen Sassnik
  • Patent number: 5636833
    Abstract: An apparatus and method for feeding a stream of underlap-imbricated sheet-like printing substrates to printing machine, the apparatus comprising a conveying table for conveying the stream in a conveying direction toward the printing, a source of compressed air, and at least one blowing device coupled to the source of compressed air, the blowing device being disposed in a region of the conveying table adjacent to printing machine, and including at least one opening disposed to direct compressed air beneath the imbricated stream in a direction opposite to the conveying direction.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: June 10, 1997
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Karl-Ludwig Maier, Arno Gartner, Nikola Pupic, Bert Cappel
  • Patent number: 5567840
    Abstract: P-substituted aminoalkylphosphinic acids of the formula ##STR1## wherein R denotes an optionally fluorinated methyl group, R.sub.1 denotes hydrogen, lower alkyl, lower alkoxy, hydroxy, halogen or a fluorinated methyl group and R.sub.2 and R.sub.3 denote hydrogen or R.sub.2 denotes hydroxy, lower alkoxy or halogen and R.sub.3 is hydrogen or R.sub.2 and R.sub.3 together represent an oxo group, and their pharmaceutically acceptable salts are active as GABA.sub.B -agonists and can be used in the treatment of spinal spasticity, multiple sclerosis and cerebral palsy, trigeminus neuralgia, drug withdrawal syndromes and/or conditions of pain. They can be manufactured by methods known per se and suitable such methods are described.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 22, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Roger G. Hall, Ludwig Maier, Wolfgang Frostl
  • Patent number: 5461040
    Abstract: P-substituted aminoalkylphosphinic acids of the formula ##STR1## wherein R denotes an optionally fluorinated methyl group, R.sub.1 denotes hydrogen, lower alkyl, lower alkoxy, hydroxy, halogen or a fluorinated methyl group and R.sub.2 and R.sub.3 denote hydrogen or R.sub.2 denotes hydroxy, lower alkoxy or halogen and R.sub.3 is hydrogen or R.sub.2 and R.sub.3 together represent an oxo group, and their pharmaceutically acceptable salts are active as GABA.sub.b -agonists and can be used in the treatment of spinal spasticity, multiple sclerosis and cerebral palsy, trigeminus neuralgia, drug withdrawal syndromes and/or conditions of pain. They can be manufactured by methods known per se and suitable such methods are described.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: October 24, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Roger G. Hall, Ludwig Maier, Wolfgang Frostl
  • Patent number: 5300679
    Abstract: Compounds of the formula I ##STR1## wherein R denotes an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic radical having 2 or more carbon atoms, and wherein one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen or, in the case of R.sup.1 and R.sup.2, is hydroxy, and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen, or wherein R denotes methyl, R.sub.1 denotes hydrogen or hydroxy, R.sub.2 denotes an aromatic radical and R.sub.3 represents hydrogen, and their salts have GABA.sub.B -antagonistic properties and can be used as GABA.sub.B -antagonists. They are obtained when in a compound of formula II ##STR2## in which R, R.sup.1, R.sup.2 and R.sup.3 have their previous significances, Z represents --NH.sub.2 and R.sup.4 denotes a hydroxy-protective group R.sup.5 or, when R.sup.1 and R.sup.3 denote hydrogen and R.sup.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: April 5, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Eric K. Baylis, Helmut Bittiger, Wolfgang Frostl, Roger G. Hall, Ludwig Maier, Stuart J. Mickel, Hans-Rudolf Olpe
  • Patent number: 5281747
    Abstract: P-substituted aminoalkylphosphinic acids of the formula ##STR1## wherein R denotes an optionally fluorinated methyl group, R.sub.1 denotes hydrogen, lower alkyl, lower alkoxy, hydroxy, halogen or a fluorinated methyl group and R.sub.2 and R.sub.3 denote hydrogen or R.sub.2 denotes hydroxy, lower alkoxy or halogen and R.sub.3 is hydrogen or R.sub.2 and R.sub.3 together represent an oxo group, and their pharmaceutically acceptable salts are active as GABA.sub.B.sup.- agonists and can be used in the treatment of spinal spasticity, multiple sclerosis and cerebral palsy, trigeminus neuralgia, drug withdrawal syndromes and/or conditions of pain. They can be manufactured by methods known per se and suitable such methods are described.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: January 25, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Roger G. Hall, Ludwig Maier, Wolfgang Frostl
  • Patent number: 5190933
    Abstract: Compounds of the formula I ##STR1## wherein R denotes an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic radical having 2 or more carbon atoms, and wherein one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen or, in the case of R.sup.1 and R.sup.2, is hydroxy, and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen, or wherein R denotes methyl, R.sub.1 denotes hydrogen or hydroxy, R.sub.2 denotes an aromatic radical and R.sub.3 represents hydrogen, and their salts have GABA.sub.B -antagonistic properties and can be used as GABA.sub.B -antagonists. They are obtained when in a compound of formula II ##STR2## in which R, R.sup.1, R.sup.2 and R.sup.3 have their previous significances, Z represents --NH.sub.2 and R.sup.4 denotes a hydroxy-protective group R.sup.5 or, when R.sup.1 and R.sup.3 denote hydrogen and R.sup.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: March 2, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Eric K. Baylis, Ludwig Maier, Stuart J. Mickel, Hans-Rudolf Olpe, Helmut Bittiger, Wolfgang Frostl, Roger G. Hall
  • Patent number: 5189030
    Abstract: Compounds of formula I ##STR1## wherein R and R.sub.1 are each independently C.sub.1 -C.sub.4 alkoxy or hydroxy and X and Y are as defined herein, as well as the metal, ammonium or substituted ammonium salts thereof, are useful insecticides, acaricides and, in particular, fungicides. They can be applied to plants or to the locus thereof in the form of compositions or used as seed dressings.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: February 23, 1993
    Assignee: Ciba-Geigy Corporation
    Inventor: Ludwig Maier
  • Patent number: 5072069
    Abstract: The invention relates to cycloolefinic complexes of platinum, processes for preparing the same from platinum(II) compounds and cyclolefins having at least 12 ring carbon atoms and at least two aliphatic non-cumulated carbon-carbon double bonds and their use as a catalyst for the addition of Si-bonded hydrogen to an aliphatic multiple bond.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: December 10, 1991
    Assignee: Consortium Fur Elektrochemische Ind.
    Inventors: Guido Wenski, Ludwig Maier, Hans-Jurgen Eberle
  • Patent number: 5064819
    Abstract: Compounds of the formula I ##STR1## wherein R denotes an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic radical having 2 or more carbon atoms, and wherein one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen or, in the case of R.sup.1 and R.sup.2, is hydroxy, and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen, or wherein R denotes methyl, R.sub.1 denotes hydrogen or hydroxy, R.sub.2 denotes an aromatic radical and R.sub.3 represents hydrogen, and their salts have GABA.sub.B -antagonistic properties and can be used as GABA.sub.B -antagonists. They are obtained when in a compound of formula II ##STR2## in which R, R.sup.1, R.sup.2 and R.sup.3 have their previous significances, Z represents --NH.sub.2 and R.sup.4 denotes a hydroxy-protective group R.sup.5 or, when R.sup.1 and R.sup.3 denote hydrogen and R.sup.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: November 12, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Eric K. Baylis, Helmut Bittiger, Wolfgang Frostl, Roger G. Hall, Ludwig Maier, Stuart J. Mickel, Hans-Rudolf Olpe
  • Patent number: 5051524
    Abstract: Compounds of the formula I ##STR1## wherein R denotes an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic radical having 2 or more carbon atoms, and wherein one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen or, in the case of R.sup.1 and R.sup.2, is hydroxy, and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen, or wherein R denotes methyl, R.sub.1 denotes hydrogen or hydroxy, R.sub.2 denotes an aromatic radical and R.sub.3 represents hydrogen, and their salts have GABA.sub.B -antagonistic properties and can be used as GABA.sub.B -antagonists. They are obtained when in a compound of formula II ##STR2## in which R, R.sup.1, R.sup.2 and R.sup.3 have their previous significances, Z represents --NH.sub.2 and R.sup.4 denotes a hydroxy-protective group R.sup.5 or, when R.sup.1 and R.sup.3 denote hydrogen and R.sup.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: September 24, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Eric K. Baylis, Helmut Bittiger, Wolfgang Frostl, Roger G. Hall, Ludwig Maier, Stuart J. Mickel, Hans-Rudolf Olpe
  • Patent number: 5013863
    Abstract: Compounds of the formula I ##STR1## wherein R denotes an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic radical having 2 or more carbon atoms, and wherein one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen or, in the case of R.sup.1 and R.sup.2, is hydroxy, and the remaining one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen, and their salts have GABA.sub.B -antagonistic properties and can be used as GABA.sub.B -antagonists. They are obtained when in a compound of formula II ##STR2## in which R, R.sup.1, R.sup.2 and R.sup.3 have their previous significances, Z represents --NH.sub.2 and R.sup.4 denotes a hydroxy-protective group R.sup.5 or, when R.sup.1 and R.sup.3 denote hydrogen and R.sup.2 denotes hydrogen or alkyl, denotes an alkali metal or ammonium ion R.sup.6, or Z represents a protected or latent amino group Z.sup.0 and R.sup.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: May 7, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Eric K. Baylis, Helmut Bittiger, Wolfgang Froostl, Roger G. Hall, Ludwig Maier, Stuart J. Mickel, Hans-Rudolf Olpe
  • Patent number: 5013559
    Abstract: The invention relates to salts of the pyrophosphorus acid of formula I ##STR1## wherein X.sym. is a cation equivalent selected from the group consisting of sodium, potassium, lithium, beryllium, magnesium, aluminum, zinc, manganese, copper and NH.sub.4, to the preparation thereof and to novel compounds of formula I, to the use of compounds of formula I as microbicides and as seed dressing agents.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: May 7, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Ludwig Maier
  • Patent number: 5009934
    Abstract: A process for preparing poly-(imidesiloxanes) which comprises reacting an N,N'-dialkenyldiimide with an organosilicon compound containing two Si-bonded hydrogen atoms in the presence of a catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic multiple bond.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: April 23, 1991
    Assignee: Wacker-Chemie GmbH
    Inventors: Guido Wenski, Ludwig Maier, Franz-Heinrich Kreuzer
  • Patent number: 4859466
    Abstract: The invention relates to salts of the pyrophosphorous acid of formula I ##STR1## wherein X.sym. is a cation equivalent selected from the group consisting of sodium, potassium, lithium, beryllium, magnesium, aluminum, zinc, manganese, copper and NH.sub.4, to the preparation thereof and to novel compounds of formula I, to the use of compounds of formula I as microbicides and as seed dressing agents.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: August 22, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Ludwig Maier