Patents by Inventor Stefan Meier

Stefan Meier 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: 5460631
    Abstract: Reactive dyestuff mixtures containing one or more monochlorotriazine dyestuffs of the formula (1) ##STR1## and one or more monofluorotriazine dyestuffs of the formula (2) ##STR2## in which the substituents have the meaning given in the description, show on-tone exhaustion onto fibres and are fixed uniformly even under different fixation conditions.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: October 24, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Hoppe, Karl-Josef Herd, Konrad Bootz, Stefan Ehrenberg, Thomas Eizenhofer, Wolfgang Harms, Hermann Henk, Klaus Kunde, Stefan Meier, Wolfram Reddig
  • Patent number: 5340046
    Abstract: An energy converter comprises a sleeve with a sleeve channel. A longitudinal groove is configured in the wall of the sleeve channel. A shank of a bolt is introduced into the sleeve channel. An L-shaped deformation member having an arresting leg is introduced into a lateral bore of the bolt shank, wherein then the sleeve leg comes to rest in the longitudinal groove of the sleeve and at the outer surface of the bolt shank. The sleeve and the bolt are thus secured against rotation. The bolt has a hexagonal bolt head, which can be positionally fixed in a matchingly configured aperture in the cheek of the belt fitting. If a predetermined force F acts upon the belt band, the sleeve and the bolt turn relative to one another and the deformation member pulls out of the longitudinal groove while rolling around the bolt shank.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: August 23, 1994
    Assignee: Carl F. Schroth GmbH
    Inventors: Karl-Jurgen Schroth, Rolf Jeche, Stefan Meier-Armdt
  • Patent number: 5231223
    Abstract: Substituted olefins of the formula (I) ##STR1## are prepared by reaction of a compound of the formula (II) ##STR2## with a compound of the formula (III)R--CH--CH.sub.2in the presence of an organic and/or inorganic palladium salt as a catalyst using water and/or an alcohol as a solvent, the substituents and indices being defined in the disclosure.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: July 27, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Axel Bader, Dieter Arlt, Dietmar Fiedel, Stefan Meier
  • Patent number: 4893264
    Abstract: A digital decimation filter which includes a multiplexer which receives signal values x.sub.i at a sampling rate of 1/T and where output signals which have half the sampling rate are supplied to two outputs. Separate bit associated circuits BP1 and BP2 are connected to the outputs for each significant figure of the p-place binary filter coefficients c6 through c1 and each of the bit associated circuits include partial products stages Mc6.sub.0 . . . Mc1.sub.0, Mc6.sub.1 . . . Mc1.sub.1 for all of the filter coefficient bits and the bit associated circuits also contain adder-register iterative circuits including delay elements and the output of the iterative circuit of the most significant bit plane BP2 is the output of the filter.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: January 9, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventors: Tobias Noll, Stefan Meier
  • Patent number: 4841175
    Abstract: ECL-compatible input/output circuits in CMOS technology which meet very strict ECL level demands and are as independent as possible of temperature and field effect transistor parameter fluctuations. This is achieved by a control circuit for reference currents of the current mirror circuits. The control circuit is composed of a sensor stage, of a comparator, of a low-pass filter and of a reference current source. Current mirror circuits are also utilized in the driver stages and in the sensor stage.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: June 20, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Erik De Man, Stefan Meier
  • Patent number: 4670651
    Abstract: An apparatus for the performance of the SNMS process, having a separate ion source, a sample holder, a system for the production of a radio-frequency plasma and a mass analyzer, in which the ion source and the mass analyzer are disposed side by side on the same side of the chamber provided for the radio-frequency plasma, and in which the sample mounted on the sample holder is situated within the chamber provided for the radio-frequency plasma. This apparatus can be used not only for the performance of the two kinds of SNMS operation (DMB and SBM) but also secondary ion mass spectroscopy (SIMS) under optimum spatial conditions.
    Type: Grant
    Filed: September 25, 1985
    Date of Patent: June 2, 1987
    Assignee: Leybold-Heraeus GmbH
    Inventors: Stefan Meier, Karl-Heinz Muller
  • Patent number: 4259572
    Abstract: Organic samples from a liquid chromatograph are deposited on a conveyor belt which transports them into a vacuum chamber at the entry end of a mass spectrometer. The samples are ionized directly on the belt by particle bombardment or by means of a laser beam. Ionization is enhanced by applying an oxide layer to the belt, by neutralizing the image force, and by vaporizing alkali atoms on the belt to reduce the ionization potential.
    Type: Grant
    Filed: May 16, 1979
    Date of Patent: March 31, 1981
    Inventors: Curt Brunnee, Jochen Franzen, Stefan Meier
  • Patent number: 4178507
    Abstract: Organic samples 10 coming from a liquid chromatograph 11 are deposited on a conveyor belt 13 which transports them into a vacuum chamber at the entry end of a mass spectrometer. The samples are ionized directly on the belt by ion bombardment or using a gaseous charge carrier. Ionization is enhanced by applying an oxide layer to the belt, by neutralizing the image force, and by vaporizing alkali atoms on the belt to reduce the ionization potential.
    Type: Grant
    Filed: November 29, 1977
    Date of Patent: December 11, 1979
    Assignee: Varian Mat GmbH
    Inventors: Curt Brunnee, Jochen Franzen, Stefan Meier