Patents by Inventor Wolfgang Beich

Wolfgang Beich 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).

  • Triiodoisophthalic acid monoamino acid amides, process for the preparation thereof, and use thereof as X-ray contrast media
    Patent number: 4032567
    Abstract: New amino acid derivative of acylamino-5-alkylcarbamoyl-2,4,6-triiodobenzoic acids are described together with processes for their preparation and use and novel intermediates useful in preparing these compounds. The compounds are valuable radiopaque agents useful as X-ray contrast media.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: June 28, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Erich Klieger, Wolfgang Beich, Eberhard Schroder
  • Triiodoisophthalic acid monoamino acid amides
    Patent number: 3953501
    Abstract: New amino acid derivative of acylamino-5-alkylcarbamoyl-2,4,6-triiodobenzoic acids are described together with processes for their preparation and use and novel intermediates useful in preparing these compounds. The compounds are valuable radiopaque agents useful as X-ray contrast media.
    Type: Grant
    Filed: February 9, 1973
    Date of Patent: April 27, 1976
    Assignee: Schering Aktiengesellschaft
    Inventors: Erich Klieger, Wolfgang Beich, Eberhard Schroder
  • Salts of iodomethanesulfonic acid with organic bases
    Patent number: 3937733
    Abstract: Salts of iodomethanesulfonic acid and an organic base, more particularly, glucamine, N-alkyl- and N, N-dialkylglucamines and N-hydroxyalkyl- and N,N-di-hydroxyalkylglucamines, are useful as X-ray contrast agents, especially for spinal X-ray examination.
    Type: Grant
    Filed: March 31, 1972
    Date of Patent: February 10, 1976
    Assignee: Schering Aktiengesellschaft
    Inventors: Hermann Ulbrich, Wolfgang Beich