Patents by Inventor Hans Kaufmann

Hans Kaufmann 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: 10351533
    Abstract: The present invention relates to a process for the preparation of carbamoylamino pyrazole derivatives using diacetoxyiodobenzene (PhI(OAc)2) in combination with a non-nucleophilic base.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: July 16, 2019
    Assignee: Sandoz AG
    Inventors: Olga Schöne, Hans-Peter Spitzenstätter, Marius Kaufmann
  • Patent number: 5216691
    Abstract: The receiver contains a correlator (TIC) for the correlation of the received signal with a reference code (R(k)) and a digital signal processor for evaluating the results of the correlation. The correlator is constructed as digital, time-integrating, multistage correlator (TIC), the individual stages (Kl to KN) of which are connected on the one hand to a digital delay line (17) fed with the reference code (R(k)) and to which on the other hand a digital signal (S(k)) recovered from the received signal is applied, to length (D) of the delay line (17) being adapted to the maximum expected impulse response to the transmission channel.
    Type: Grant
    Filed: February 20, 1992
    Date of Patent: June 1, 1993
    Assignee: Ascom Zelcom AG
    Inventor: Hans Kaufmann
  • Patent number: 4984247
    Abstract: A base station (BS) and mobile user stations (MS) each with a transmitter (S), a receiver (E) for multipath reception and a control unit (ST) are provided in each cell. Exactly one set of several sequence sets of the auxiliary function used for spectrum spreading is allocated to each cell. Sequences of several sets in pairs have the property that the absolute values of the normalized periodic cross-correlation functions are much smaller than one and for sequences within a set the cross-correlation function in pairs is optimally small around the zero point. Data synchronous generation of the transmission signals takes place in the base station (BS) for all simultaneous connections and the data clock of the received signal is used as data clock of the transmission signal of the user station (MS).Application for digital data transmission in buildings and local areas for the configuration of a so called cordless LAN are considered.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: January 8, 1991
    Assignee: Ascom Zelcom AG
    Inventors: Hans Kaufmann, Roland Kueng, Urs Grob, Arnold Welti
  • Patent number: 4953709
    Abstract: An apparatus for sorting lightweight from heavy material in mixtures of solid materials containing lumpy, granular, and pulverous constituents substantially comprises an upright slim container having a lower portion into which material for sorting is introduced. Pulsating air flows are introduced from the exterior into the container, resulting in an upward flow of pulsating air which loosens the material for sorting and produces a fluidized bed. Simultaneously, the apparatus is vibrated up and down in a linear manner by vibrators to assist in loosening the material. The lightweight material floating in the air stream is conveyed to a discharge channel at the top end of the container, whereas heavy material rapidly sinks down to a tubular member into which a second pulsating air flow is introduced in order additionally to sort the heavy material in a last treatment stage inside the tubular member.
    Type: Grant
    Filed: April 26, 1989
    Date of Patent: September 4, 1990
    Assignee: Kaufmann GmbH
    Inventor: Hans Kaufmann