Patents by Inventor Gottlieb Ryser

Gottlieb Ryser 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).

  • Substituted triarylphosphonium derivatives
    Patent number: 4656310
    Abstract: Novel 9-phenyl 5,6-dimethyl-nona-2,4,6,8-tetraenoic acid,- tetraenal or tetraenol derivatives useful as anti-tumor agents.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: April 7, 1987
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • Substituted triaryl phosphonium derivatives
    Patent number: 4532355
    Abstract: Novel 9-phenyl 5,6-dimethyl-nona-2,4,6,8-tetraenoic acid,-tetraenal or tetraenol derivatives useful as anti-tumor agents.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: July 30, 1985
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • Certain 6-(3'-methoxyphenyl) derivatives of 2,4-hexadienal
    Patent number: 4319048
    Abstract: Novel 9-phenyl 5,6-dimethyl-nona-2,4,6,8-tetraenoic acid, tetraenal or tetraenol derivatives useful as anti-tumor agents.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: March 9, 1982
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • 2,6-Dichloro-4-methoxy-5-methyl-benzene aldehydes
    Patent number: 4267382
    Abstract: Novel 9-(halo-substituted phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraene derivatives useful as anti-tumor agents are disclosed.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: May 12, 1981
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • Polyene compounds
    Patent number: 4225527
    Abstract: Novel 9-(halo-substituted phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraene derivatives useful in treating dermatological conditions.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: September 30, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • 9-Phenyl 5,6-dimethyl-nona-2,4,6,8 tetraenal or tetraenol derivatives
    Patent number: 4224244
    Abstract: Novel 9-phenyl 5,6-dimethyl-nona-2,4,6,8-tetraenoic acid, tetraenal or tetraenol derivatives useful as anti-tumor agents.
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: September 23, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • 9-Phenyl-nonate traene compounds
    Patent number: 4215215
    Abstract: Novel 9-phenyl 5,6-dimethyl-nona-2,4,6,8-tetraenoic acid, tetraenal or tetraenol derivatives useful as anti-tumor agents.
    Type: Grant
    Filed: July 6, 1979
    Date of Patent: July 29, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • 9-Substituted phenyl-3,7-dimethyl-nona 2,4,6,8-tetraene compounds
    Patent number: 4187247
    Abstract: Novel 9-substituted phenyl-3,7-dimethyl-nona-2,4,6,8-tetraene derivatives useful as anti-tumor agents.
    Type: Grant
    Filed: March 8, 1979
    Date of Patent: February 5, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • Nonatetraenoic acid derivatives
    Patent number: 4169103
    Abstract: The compound 9-(2,2,5-trimethyl-4-hydroxy or oxo-1-cyclohexenyl)-3,7-dimethyl-2,4,6,8-nonatetraenoic acid and derivatives useful as antitumor agents and in the prophylaxis and/or treatment of certain carcinomas.
    Type: Grant
    Filed: April 12, 1978
    Date of Patent: September 25, 1979
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Ralph Haenni, Gottlieb Ryser
  • Novel derivatives of 9-substituted phenyl-3,7-dimethyl-nona-2,4,6,8-tetraene
    Patent number: 4163103
    Abstract: Novel 9-substituted phenyl-3,7-dimethyl-nona-2,4,6,8-tetraene derivatives useful as anti-tumor agents.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: July 31, 1979
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • Piperidine salts as plant growth regulants
    Patent number: 4139367
    Abstract: Compounds represented by the formula ##STR1## wherein R.sub.1 is lower alkyl having 1-4 carbons, lower alkenyl having 2-4 carbons or lower alkynyl having 2-4 carbons; R.sub.2, R.sub.3 and R.sub.4 each are a lower alkyl having 1-4 carbons or R.sub.2 and R.sub.4 together with the carbon to which they are attached are a 5 or 6 membered alicyclic ring; and X is chlorine, bromine or iodine;Their use as plant growth regulants and plant growth regulant compositions containing the active compounds are disclosed.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: February 13, 1979
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Gerhard Huppi, Wijitha DeSilva, Gottlieb Ryser
  • Novel compounds of 9-phenyl-3,7-dimethyl-2,4,6,8-nonatetraenamide
    Patent number: 4107190
    Abstract: Novel 9-substituted phenyl-3,7-dimethyl-nona-2,4,6,8-tetraene derivatives useful as anti-tumor agents.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: August 15, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • 9-Phenyl 5,6-dimethyl-nona-2,4,6,8-tetraeonic acid compounds
    Patent number: 4105681
    Abstract: Novel 9-phenyl 5,6-dimethyl-nona-2,4,6,8-tetraenoic acid,-tetraenal or tetraenol derivatives useful as anti-tumor agents.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: August 8, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • Novel 9-substituted phenyl-3,7-dimethyl-nona-2,4,6,8-tetraene esters
    Patent number: 4054589
    Abstract: Novel 9-substituted phenyl-3,7-dimethyl-nona-2,4,6,8-tetraene derivatives useful as anti-tumor agents.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: October 18, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • Antidandruff compositions containing 9-(4-lower alkoxy-2,3,6-trilower-alkylphenyl)-3,7-dimethyl-nona-2,4,6,8-tetraen-1-o ic acid lower alkyl amides
    Patent number: 4021574
    Abstract: Compositions suitable for the care of the hair and scalp particularly with respect to the control of dandruff are disclosed. Said compositions comprise a suitable inert carrier and, as an active ingredient, a compound selected from those represented by the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.6 are lower alkyl.
    Type: Grant
    Filed: September 9, 1975
    Date of Patent: May 3, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • 1-(3,7-Dimethyloctyl)-1(2-propenyl)-and 1(2-propynyl)-piperidinium bromides as plant growth regulants
    Patent number: 4014678
    Abstract: Compounds represented by the formula ##STR1## wherein R.sub.1 is lower alkyl having 1-4 carbons, lower alkenyl having 2-4 carbons or lower alkynyl having 2-4 carbons; R.sub.2, R.sub.3 and R.sub.4 each are a lower alkyl having 1-4 carbons or R.sub.2 and R.sub.4 together with the carbon to which they are attached are a 5 or 6 membered alicyclic ring; and X is chlorine, bromine or iodine;Their use as plant growth regulants and plant growth regulant compositions containing the active compounds are disclosed.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: March 29, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Gerhard Huppi, Wijitha De Silva, Gottlieb Ryser
  • Polyene compounds
    Patent number: 3984440
    Abstract: Novel 9-substituted phenyl-3,7-dimethyl-nona-2,4,6,8-tetraenoic acid, -tetraenal or -tetraenol derivatives are described. The subject compounds are useful in the treatment of neoplasias, certain dermatoses and inflammatory and allergic dermatological conditions.
    Type: Grant
    Filed: August 7, 1974
    Date of Patent: October 5, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser
  • Vitamin A acid amides
    Patent number: 3950418
    Abstract: Novel vitamin A acid amides and compositions thereof which are useful for the topical or systemic treatment of dermatological disorders.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: April 13, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Rudolf Ruegg, Gottlieb Ryser