Patents by Inventor Richard Leeb

Richard Leeb 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).

  • Stabilized polymer film coated compounds and stabilized formulations in compressed from using same
    Patent number: 5442008
    Abstract: Stabilized medicinal substances, a process for the preparation thereof, and stable medicinal formulationsStabilized compounds of the formula I ##STR1## in which R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the stated meanings, and a process for the preparation thereof, are described. The stabilized compounds are suitable for the manufacture of medicinal formulations. The formula I compounds are stabilized by a polymeric protective coating before being compressed in tablet form.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: August 15, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Werner Fulberth, Richard Leeb, Manfred Radau, Willi Stammberger
  • Stabilized medicinal substances, a process for the preparation thereof, and stable medicinal formulations
    Patent number: 5151433
    Abstract: Stabilized compounds of the formula I ##STR1## in which R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the stated meanings, and a process for the preparation thereof, are described. The stabilized compounds are suitable for the manufacture of medicinal formulations.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: September 29, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Werner Fulbreth, Richard Leeb, Manfred Radau, Willi Stammberger
  • Secretin preparations with intensified and protracted action, process for their manufacture, their use as well as dihydroxybenzoyl-L-tyrosine
    Patent number: 4302448
    Abstract: What are disclosed are secretin preparations with an intensified and protracted action, especially subcutaneously and rectally administrable preparations containing phenolic depot bodies. A process for the manufacture of the preparations and their use as well as phenolic depot bodies and the manufacture thereof are described.
    Type: Grant
    Filed: June 11, 1980
    Date of Patent: November 24, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Martin Bickel, Rolf Geiger, Richard Leeb, Walter Petri
  • Ready for use, injectable, aqueous solutions of alkali metal salts of canrenoic acid and furosemide and process for their preparation
    Patent number: 4301160
    Abstract: Ready for use, injectable, aqueous solution of a pH of from 10.2 to 11.2 containing a mixture of an alkali metal salt of canrenoic acid and furosemide without addition of a buffer and process for their preparation.
    Type: Grant
    Filed: December 16, 1980
    Date of Patent: November 17, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Richard Leeb, Rainer J. Helbig