Patents by Inventor Manfred Menzer

Manfred Menzer 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).

  • Anticonvulsive and antiallergic/antiasthmatic pyrazolo-[3,4-d]pyrimidines, and process for preparing
    Patent number: 6054460
    Abstract: The invention relates to pyrazolo[3,4d]pyrimidin-4(5H)-ones and pyrazolo[3,4-d]pyrimidine-4(5H)-thiones and their tautomers and pharmaceutically acceptable salts, which contain a benzyl radical in the 2-position, processes for their preparation and their use as medicaments, in particular for the treatment of epilepsies of various forms and of allergic/asthmatic diseases.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: April 25, 2000
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Thomas Arnold, Hans-Joachim Lankau, Manfred Menzer, Angelika Rostock, Christine Tober, Klaus Unverferth
  • Anticonvulsive 1-ar(alk)ylimidazolin-2-ones and process for making
    Patent number: 5869481
    Abstract: Compounds having anticonsulive activity, of the formula 1 ##STR1## in which X is hydrogen, a C.sub.1-4 -alkyl, C.sub.1-4 alkoxy, trifluoromethyl, or halogen residue, R.sup.1 and R.sup.2 are independently of each other C.sub.1-4 -alkyl, C.sub.2-4 hydroxyalkyl, cycloalkyl or heteroalkyl, or R.sup.1 and R.sup.2 are together a C.sub.2-6 alkylene reside in which a--CH.sub.2 --group is optionally replaced by oxygen, nitrogen or sulfur, m is 0 or 1, and n is 0 or a cardinal number from 1 to 5, and their pharmaceutically acceptable salts. The application also relates to a process for making the compound of formula (I).
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: February 9, 1999
    Assignee: Arzneitmittelwerk Dresden G.m.b.H.
    Inventors: Hans-Joachim Lankau, Manfred Menzer, Klaus Unverferth, Karl Gewald, Harry Schafer, deceased
  • Anticonvulsive imidazoline-2,4-diones and process for making
    Patent number: 5817685
    Abstract: Anticonvulsive compounds and compositions, of the formula ##STR1## in which X is a C.sub.1-4 -alkyl, trifluoromethyl, or halogen residue, Y is hydrogen or halogen, n is 0 or 1, and m is 0 or a cardinal number from 1 to 4, and its pharmacologically acceptable acid addition salts.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: October 6, 1998
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Hans-Joachim Lankau, Manfred Menzer, Angelika Rostock, Klaus Unverferth