Patents by Inventor Armin Walser

Armin Walser 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: 4111934
    Abstract: Novel 1,5-benzodiazepin-4-one derivatives, bearing between the 1,2-positions a triazolo ring, as disclosed. These 1,2-triazolo-1,5-benzodiazepin-4-ones are useful as muscle-relaxant, anti-convulsant and sedative agents.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: September 5, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Rodney Ian Fryer, Leo Henryk Sternbach, Armin Walser
  • Patent number: 4080323
    Abstract: The present invention concerns compounds of the formula ##STR1## wherein X is hydrogen or halogen; R.sub.1 is hydrogen, halogen or trifluoromethyl; R.sub.2 is hydrogen or lower alkyl; and R.sub.3 is hydrogen, --COO lower alkyl or CON(R.sub.4).sub.2 wherein R.sub.4 is lower alkyl or hydrogen and may be differentAnd the pharmaceutically acceptable salts thereof.Also provided are methods for the preparation of these compounds as well as pharmaceutical formulations which contain the active compounds of this invention. The compounds of the formula illustrated above are useful as anxiolytics, anticonvulsants, muscle relaxants and sedative agents.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: March 21, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Armin Walser, Rodney Ian Fryer
  • Patent number: 4044016
    Abstract: Novel preparations of triazolobenzodiazepines are disclosed. Novel 6-pyridyl-4H-triazolo[4,3-a]-1,4-benzodiazepines and novel intermediates are also disclosed which are useful as anticonvulsants, muscle relaxants and sedative agents.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: August 23, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Henryk Sternbach, Armin Walser
  • Patent number: 4032535
    Abstract: 6-Phenyl-S-triazolo[4,3-a][1,4]benzodiazepines bearing in the 8-position a hydroxyamino or azoxy substituent are disclosed together with processes for preparing these compounds and intermediates used in these processes. These triazolobenzodiazepines are useful as muscle relaxant, anti-convulsant and sedative agents.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: June 28, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Rodney Ian Fryer, Armin Walser
  • Patent number: 4026936
    Abstract: Compounds represented by the formula ##STR1## wherein R is ##STR2## R.sup.1 is 2-pyridyl, 3-pyridyl, 4-pyridyl or 2-thiazyl, R.sup.2 is lower alkyl and n is 1 or 2,And acid addition salts of the compounds wherein R.sup.1 is 2-pyridyl, 3-pyridyl or 4-pyridyl are disclosed as useful as anthelmintics against a broad spectrum of helminths. Processes for making the active compounds and novel intermediates useful therein are also disclosed.
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: May 31, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Rudolph Frank Lauer, Armin Walser
  • Patent number: 4014883
    Abstract: Derivatives of 7H-indolo[2,3-c]quinolin-6(5H)-one and 7H-indolo[2,3-c]quinoline, prepared, inter alia, from the corresponding 3-azido-4-phenylcarbostyrils or corresponding N-(lower alkylamino)-3-(2-fluorophenyl)-indole-2-carboxamides, are described. The end products of the invention are useful as anti-tumor agents, i.e., they inhibit the growth of transplantable tumors.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: March 29, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Rodney Ian Fryer, Robert Ye-Fong Ning, Leo Henryk Sternbach, Armin Walser
  • Patent number: 3989681
    Abstract: Novel 1,4-benzodiazepin-2-ones of the formula ##SPC1##WhereinR.sub.1 is selected from the group consisting of hydrogen, lower alkyl, cycloalkyl-lower alkyl, hydroxylower alkyl, lower alkoxy-lower alkyl and di-lower alkylamino-lower alkyl;R.sub.2 signifies hydrogen or lower alkyl; R.sub.3 signifies hydrogen or halogen; R.sub.4 signifies lower alkylAnd the pharmaceutically acceptable acid addition salts thereof, are disclosed together with processes for preparing these compounds and novel intermediates used in these processes. These 7-azoxy substituted-1,4-benzodiazepin-2-ones are useful as muscle relaxant, anti-convulsant and sedative agents.
    Type: Grant
    Filed: November 28, 1973
    Date of Patent: November 2, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Rodney Ian Fryer, Armin Walser
  • Patent number: 3974181
    Abstract: The compound 7,9,9-trimethyl-1,4-dioxoaspiro [4,5] dec-7-en-8-methanol an intermediate in the preparation of Zeaxanthin and Xanthophyll, known coloring agents for foodstuffs.
    Type: Grant
    Filed: January 6, 1975
    Date of Patent: August 10, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Joseph Donald Surmatis, Armin Walser
  • Patent number: 3970664
    Abstract: Novel preparations of triazolobenzodiazepines are disclosed. Novel 6-pyridyl-4H-triazolo[4,3-a]-1,4-benzodiazepines and novel intermediates are also disclosed which are useful as anticonvulsants, muscle relaxants and sedative agents.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: July 20, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Henryk Sternbach, Armin Walser
  • Patent number: 3954753
    Abstract: Novel pyrazino-1,4-diazepines are disclosed together with processes for their preparation and novel intermediates used in these processes. These novel diazepines are useful as sedatives, muscle-relaxants and anti-convulsants.
    Type: Grant
    Filed: February 13, 1975
    Date of Patent: May 4, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: George Francis Field, Leo Henryk Sternbach, Armin Walser
  • Patent number: 3954838
    Abstract: 1,4-Benzodiazepin-2-ones bearing an acylamidoalkyl-substituent in the 1-position and methods for the preparation thereof are disclosed. These 1,4-benzodiazepin-2-ones exhibit sedative, anti-convulsant and muscle relaxant activity.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: May 4, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Joseph Hellerbach, Armin Walser, Hermann Bretschneider, Werner Rudolph
  • Patent number: 3954728
    Abstract: Novel preparations of triazolobenzodiazepines are disclosed. Novel 6-pyridyl-4H-triazolo[4,3-a]-1,4-benzodiazepines and novel intermediates are also disclosed which are useful as anti-convulsants, muscle relaxants and sedative agents.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: May 4, 1976
    Assignee: Hoffman-La Roche Inc.
    Inventors: Leo Henryk Sternbach, Armin Walser
  • Patent number: 3941841
    Abstract: A method by which rhodoxanthin can be synthesized from 3-ethylenedioxy-.beta.-ionone as well as new and novel intermediates produced in the synthesis. Rhodoxanthin is a well-known coloring agent for foodstuffs, including beverages, pharmaceutical and cosmetic preparations.
    Type: Grant
    Filed: May 17, 1974
    Date of Patent: March 2, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Joseph Donald Surmatis, Armin Walser