Patents by Inventor Dieter Essig

Dieter Essig 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).

  • Dispenser for solid pharmaceutical preparations
    Patent number: 5709305
    Abstract: A new dispenser for solid pharmaceutical preparations consists of a flat container with a removal well 3 which can be closed or opened by the flipping round of a closure member 5 with a convexity 6 engaging in the removal well 3.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: January 20, 1998
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Dieter Essig, Heribert Hausler, Hans-Dieter Ruthemann, Klaus-Dieter Eckert, Frank Landwehr, Thomas Zimmer, Dieter Berndt, Thomas Reiner, Gunter Horntrich, Reiner Reeg
  • Process for preparation of alkali metal salts of ampicillin
    Patent number: 4130558
    Abstract: A process for the preparation of an alkali metal salt of ampicillin, especially the sodium salt, which comprises adding to an aqueous suspension of ampicillin, at a temperature not exceeding about 4.degree. C, an aqueous solution of an equimolar or somewhat lesser amount of an alkali metal base, filtering the resulting solution until sterile, freezing the filtrate, and lyophilizing the frozen filtrate.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: December 19, 1978
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Otto Roos, Dieter Essig