Patents by Inventor Ulrich Speck

Ulrich Speck 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: 4963344
    Abstract: Agents useful for influencing the relaxation times in NMR diagnostics, contain at least one paramagnetic, physiologically compatible complex salt comprising a chelate from an open-chain or cyclic complex-forming compound containing organic nitrogen, phosphorus, oxygen and/or sulfur, and a complexed ion of the lanthanide elements of atomic number 57-70 or of the transition metals of atomic numbers 21-29, 42 and 44, and, optionally, an inorganic or organic base or acid.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: October 16, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Heinz Gries, Douwe Rosenberg, Hanns-Joachim Weinmann, Ulrich Speck, Wolfgang Mutzel, Georg-Alexander Hayden, Heinrich Pfeiffer
  • Patent number: 4870061
    Abstract: The invention refers to the use of N-acetylglucosamine for the therapy of degenerative diseases of the joints and of the connective and the supporting tissues as well as for the therapy of related diseases, wherein the N-acetylglucosamine is administered to the body through buccal absorption.
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: September 26, 1989
    Inventor: Ulrich Speck
  • Patent number: 4547357
    Abstract: Novel N-hydroxyethylated 2,4,6-triiodoaminoisophthalic acid bistrihydroxybutylamides of Formula (I) ##STR1## wherein R is a trihydroxybutyl residue, are excellently suitable, due inter alia, to their outstanding compatibility and high water solubility, as opacifying compounds in X-ray contrast media for use in X-ray diagnostic examination methods.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: October 15, 1985
    Assignee: Schering, Aktiengesellschaft
    Inventors: Heinrich Pfeiffer, Wolfgang Muetzel, Ulrich Speck
  • Patent number: 4426371
    Abstract: Novel N-hydroxyalkylated dicarboxylic acid bis(3,5-dicarbamoyl-2,4,6-triiodoanilides) have Formula I ##STR1## wherein R.sup.1 is a lower, linear or branched mono- or polyhydroxyalkyl residue,R.sup.2 is hydrogen, lower alkyl, or R.sup.1,R.sup.3 is lower mono- or dihydroxyalkyl, andX is a direct bond or linear or branched alkylene, which can be interrupted by one or more oxygen atoms or substituted by hydroxy or alkoxy groups.The novel dimeric compounds of Formula I possess good pharmacological and physicochemical properties making them very advantageous as radiopaque agents in all fields of application for water-soluble, iodine-containing X-ray contrast media.
    Type: Grant
    Filed: August 12, 1981
    Date of Patent: January 17, 1984
    Assignee: Schering, Aktiengesellschaft
    Inventors: Heinrich Pfeiffer, Ulrich Speck
  • Patent number: 4395391
    Abstract: Unsymmetrically substituted dicarboxylic-acid-bis-(2,4,6-triiodo-anilides) of formula I ##STR1## wherein X is straight-chain or branched alkylene interrupted by one or more oxygen atoms,R.sup.1 is --NHacyl, --CH.sub.2 NHacyl, or --CONHR.sup.3 wherein R.sup.3 is hydrogen or a lower straight-chain or branched optionally mono- or poly-hydroxylated, alkyl residue, and where any hydroxyl groups present may be functionally modified, andR.sup.2 is hydrogen or lower alkyl, and their salts,are extraordinarily well suited, in view of their good pharmacological and physico-chemical properties, as water-soluble x-ray contrast media for all fields of application, in particular for i.v. cholegraphy and for computer tomography.
    Type: Grant
    Filed: November 24, 1981
    Date of Patent: July 26, 1983
    Assignee: Schering Aktiengesellschaft
    Inventors: Heinrich Pfeiffer, Wolfgang Mutzel, Ulrich Speck
  • Patent number: 4367216
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is hydroxy-C.sub.2-8 -alkyl containing 1-5 OH-groups;R.sup.2 is hydrogen, C.sub.1-4 -alkyl or R.sup.1 ;R.sup.3 and R.sup.4 can be identical or different, and each independently is hydrogen or C.sub.1-4 -alkyl; andX is straight chain or branched C.sub.2-12 alkylene interrupted by sulfur or selenium atoms, and, optionally, additionally interrupted by oxygen atoms, by a di(C.sub.1-4 -alkyl)silyl group or a tetra(C.sub.1-4 -alkyl)disiloxane group;are very useful as X-ray contrast media opaque agents, which can be employed even in lymphography.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: January 4, 1983
    Assignee: Schering Aktiengesellschaft
    Inventors: Wolfgang Mutzel, Hans-Martin Siefert, Ulrich Speck, Heinrich Pfeiffer, Paul-Eberhard Schulze, Bernhard Acksteiner
  • Patent number: 4364921
    Abstract: New triiodinated isophthalic acid diamides of the formula ##STR1## wherein the amide residues --CO--N.R.sub.1 R.sub.2 and --CO--N.R.sub.3 R.sub.4 are different from each other andR.sub.1 is hydrogen or C.sub.1-6 alkyl,R.sub.2 is mono- or polyhydroxyalkyl,R.sub.3 is hydrogen or C.sub.1-6 alkyl,R.sub.4 is mono- or polyhydroxylalkyl,R.sub.5 is C.sub.1-6 alkyl or mono- or polyhydroxy-C.sub.1-6 -alkyl or C.sub.1-3 -alkoxy-C.sub.1-3 -alkyl, andR.sub.6 is hydrogen, C.sub.1-6 alkyl or mono- or polyhydroxyalkyl provide superior nonionic X-ray contrast media.
    Type: Grant
    Filed: March 6, 1980
    Date of Patent: December 21, 1982
    Assignee: Schering, Aktiengesellschaft
    Inventors: Ulrich Speck, Peter Blaszkiewicz, Dieter Seidelmann, Erich Klieger
  • Patent number: 4328202
    Abstract: Ionic compounds of the formula ##STR1## wherein X is --CONR.sub.1 R.sub.2, --CH.sub.2 NH.multidot.Acyl or --CH.sub.2 OH; Y is --NR.sub.3 R.sub.4, --NH.multidot.Acyl or OR.sub.5 ; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 can be identical or different, and each is hydrogen, C.sub.1-6 - alkyl or C.sub.2-8 -alkyl substituted by 1-5 OH groups and/or by one C.sub.1-3 -alkoxy group, R.sub.5 is C.sub.1-6 alkyl or C.sub.2-8 -alkyl substituted by 1-5 OH groups and/or by one C.sub.1-3 -alkoxy group, and Acyl, which can be the same or different in X and Y, is C.sub.2-6 -alkanoyl or C.sub.2-6 -alkanoyl substituted by 1-4 OH groups and/or by one C.sub.1-3 -alkoxy group, or a physiologically compatible salt thereof with an inorganic or organic base, have valuable properties as X-ray contrast agents.
    Type: Grant
    Filed: January 9, 1981
    Date of Patent: May 4, 1982
    Assignee: Schering, A.G.
    Inventors: Heinz Gries, Heinrich Pfeiffer, Ulrich Speck, Wolfgang Muetzel
  • Patent number: 4283381
    Abstract: Compounds of the formula ##STR1## wherein X is alkylene, optionally substituted by hydroxy, methoxy or amino;R.sup.1 is hydrogen or C.sub.1-4 alkyl;R.sup.2 is hydrogen, C.sub.1-4 alkyl, or C.sub.2-4 -alkyl substituted by 1-3 OH groups;R.sup.3 is hydrogen, C.sub.1-4 alkyl, or C.sub.2-4 -alkyl substituted by 1-3 OH groups;R.sup.4 is hydrogen, C.sub.1-4 -alkyl, or C.sub.2-4 -alkyl substituted by 1-3 OH groups;R.sup.5 is C.sub.2-4 -alkyl substituted by 1-3 OH groups;R.sup.6 is hydrogen, C.sub.1-4 -alkyl or C.sub.2-4 -alkyl substituted by 1-3 OH groups; andR.sup.7 is C.sub.2-4 -alkyl substituted by 1-3 OH groups,or a salt thereof with an acidare useful as opaquing agents in x-ray contrast media.
    Type: Grant
    Filed: July 11, 1980
    Date of Patent: August 11, 1981
    Assignee: Schering Aktiengesellschaft
    Inventors: Ulrich Speck, Erich Klieger, Wolfgang Mutzel
  • Patent number: 4239747
    Abstract: Dicarboxylic acid bis(3,5-dicarbamoyl-2,4,6-triiodoanilides) of the formula ##STR1## wherein R.sub.1 is lower straight-chain or branched-chain mono- or polyhydroxyalkyl;R.sub.2 is hydrogen, lower alkyl or R.sub.1 ;R.sub.3 is hydrogen or lower alkyl; andX is a direct bond or straight-chain or branched-chain alkylene interrupted by one or more oxygen or substituted by hydroxy or lower alkyl, are useful in x-ray contrast media.
    Type: Grant
    Filed: January 12, 1979
    Date of Patent: December 16, 1980
    Assignee: Schering Aktiengesellschaft
    Inventors: Heinrich Pfeiffer, Ulrich Speck
  • Patent number: 4181721
    Abstract: In order to prolong the effectiveness of depot preparations of progestagens in an oily, unsaturated solution for intramuscular injection having long-term effectiveness sufficient for a desired purpose, the volume of the injection solution is increased such that the duration of the progestational activity is increased to at least 13 weeks while retaining the same quantity of active agent to be administered.
    Type: Grant
    Filed: July 7, 1978
    Date of Patent: January 1, 1980
    Assignee: Schering Aktiengesellschaft
    Inventors: Ulrich Speck, Erwig Pinter, Ursula Lachnit-Fixson, Johann-Diederich Hahn-Godeffroy
  • Patent number: 4132731
    Abstract: Iodized isophthalamic acid compounds of the formula ##STR1## wherein R.sub.1 is straight-chain or branched lower hydroxyalkyl;R.sub.2 is hydroxymethyl or a lower, straight-chain or branched alkyl of at least 2 carbon atoms, which can be interrupted by one or more oxygen atoms, or is ##STR2## wherein Z is a carbon-to-carbon bond or a straight-chain or branched hydrocarbon which can be interrupted by one or more oxygen atoms, or when R.sub.1 is other than --CH.sub.2 --CH.sub.2 --OH, is methyl; and the salts thereof with physiologically acceptable inorganic or organic bases, are x-ray contrast agents.
    Type: Grant
    Filed: June 14, 1977
    Date of Patent: January 2, 1979
    Assignee: Schering Aktiengesellschaft
    Inventors: Erich Klieger, Ulrich Speck
  • Patent number: 4101647
    Abstract: An oral dosage form of X-ray contrast medium for cholecystocolangiography comprises a constrast agent and an amount of a pharmaceutically acceptable base, sufficient to neutralize the stomach acid of the person ingesting it.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: July 18, 1978
    Assignee: Schering Aktiengesellschaft
    Inventors: Wolfram Clauss, Ulrich Speck, Dietmar Jentsch