Patents by Inventor Ulrich Schwieter

Ulrich Schwieter 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).

  • Sulfone polyene intermediates
    Patent number: 4883887
    Abstract: A process for producing carotenoids and carotenoid intermediates via reduction of sulfonyl polyenes with a dithionite in the presence of ammonia or an aliphatic amine, including novel intermediates in this process, which carotenoids are known coloring agents for foodstuffs, animal feeds, pharmaceuticals, etc.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: November 28, 1989
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Kurt Bernhard, Stephan Jaggli, Paul Kreienbuhl, Ulrich Schwieter
  • Insecticidal compositions
    Patent number: 4423042
    Abstract: Insecticidal compositions, and methods for their use, which comprise a combination of O,O-diethyl-O-(2-isopropyl-4-methylpyrimid-6-yl)-thionophosphoric acid ester with a pyrethroid which synergizes the insecticidal activity of the thionophosphoric acid ester.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: December 27, 1983
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Silvia Dorn, Ulrich Schwieter
  • Phenylcarbamates
    Patent number: 4234598
    Abstract: Phenylcarbamates of the general formula: ##STR1## wherein R.sub.1 is lower alkyl, lower alkenyl, lower alkynyl, lower alkylcarbonyl, halogen-lower alkylcarbonyl or trichloromethylsulfenyl and R.sub.2 is hydrogen or lower alkyl,processes for their preparation; pesticidal compositions containing one or more of the phenylcarbamates as the active ingredient and methods for using the pesticide composition are disclosed.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: November 18, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar S. Chodnekar, Peter Loeliger, Ulrich Schwieter, Albert Pfiffner, Milos Suchy, Rene Zurflun
  • Alkynyloxy-phenyl derivatives
    Patent number: 4138579
    Abstract: Alkynyl, benzyl or phenyl, ethers and esters which are ring substituted with an oxy or a thio aliphatic chain. These ethers and esters are usful in killing and preventing the proliferation of insects by upsetting their hormonal balance.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: February 6, 1979
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar S. Chodnekar, Albert Pfiffner, Norbert Rigassi, Ulrich Schwieter, Milos Suchy
  • Epoxy dodecadienamides
    Patent number: 4059600
    Abstract: Ethers, esters and amides of dodeca-2,4-dien 1-ols or 1-oic acids which have a methyl or ethyl side chain at the 11-position which are useful in killing and preventing proliferation of insects, by upsetting their hormone balance and a process for preparing these ethers, esters and amides including intermediates in this process.
    Type: Grant
    Filed: January 7, 1972
    Date of Patent: November 22, 1977
    Assignee: Hoffmann-La Roche, Inc.
    Inventors: Madhukar Subraya Chodnekar, Albert Pfiffner, Norbert Rigassi, Ulrich Schwieter, Milos Suchy
  • Alkynyloxy-phenyl derivatives
    Patent number: 4051319
    Abstract: Alkynyl, benzyl or phenyl, ethers and esters which are ring substituted with an oxy or a thio aliphatic chain. These ethers and esters are useful in killing and preventing the proliferation of insects by upsetting their hormonal balance.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: September 27, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Albert Pfiffner, Norbert Rigassi, Ulrich Schwieter, Milos Suchy
  • 9[2-(1-Al koxy-ethyl)-5,5-dimethyl-cyclopent-1-en-1-yl]-3,7-dimethyl-nona-2,4,6,8-t etraen acid compounds
    Patent number: 4044051
    Abstract: 9-[2-(1-alkoxy-ethyl)-5,5-dimethyl-cyclopent-1-en-1-yl]-3,7-dimethyl-nona-2 ,4,6,8-tetraen acid compounds are disclosed which are useful for the topical or systemic treatment of dermatological disorders.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: August 23, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Bollag, Norbert Rigassi, Ulrich Schwieter
  • Pesticides
    Patent number: 4027033
    Abstract: Compounds represented by the formula ##STR1## wherein R.sub.1 is hydrogen or lower alkyl containing 1-4 carbons andR.sub.2 is a halo-lower alkanoyl or dihalo-lower alkanoyl, said lower alkanoyls each containing 2-6 carbonsUseful as pesticides are disclosed.
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: May 31, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Peter Loeliger, Ulrich Schwieter, Albert Pfiffner, Milos Suchy, Rene Zurfluh
  • Novel benzofuranyl pest retardants
    Patent number: 4002647
    Abstract: Alkyl ethers of 2,3-dihydrobenzofuran where the alkyl chain may contain branched chains, unsaturated bonds, epoxy bridges, and may be substituted with halo, alkoxy, lower alkenyloxy, or lower alkynyloxy substituents useful in killing and preventing the proliferation of insects and other pests by upsetting their hormone balance.
    Type: Grant
    Filed: May 21, 1975
    Date of Patent: January 11, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Peter Loeliger, Albert Pfiffner, Ulrich Schwieter, Milos Suchy, Rene Zurfluh
  • Phenyl derivatives
    Patent number: 4001339
    Abstract: Phenyloxy, phenylsulfinyl, phenylthio, phenylsulfonyl, benzyloxy, benzylthio, benzylsulfinyl, or benzylsulfonyl, alkyl or alkenyl derivatives wherein the alkyl or alkenyl group contains at least 7 carbon atoms which are useful in killing and preventing proliferation of insects by upsetting their hormone balance.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: January 4, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Albert Pfiffner, Norbert Rigassi, Ulrich Schwieter, Milos Suchy
  • Monoacetals of unsaturated aliphatic dialdehydes
    Patent number: 3989758
    Abstract: Mono acetals of unsaturated aliphatic dialdehydes having from 7 to 10 carbon atoms which are intermediates in the preparation of carotenoids.
    Type: Grant
    Filed: October 14, 1971
    Date of Patent: November 2, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Rudolf Ruegg, Ulrich Schwieter
  • Epithio compounds
    Patent number: 3983243
    Abstract: Epithio unsaturated aliphatic acids, nitriles, and alcohols and ether, ester and amide derivatives thereof and epoxy unsaturated aliphatic acids, nitriles and alcohols and ether ester and amide derivatives thereof, which are useful in killing and preventing proliferation of insects by upsetting their hormone balance.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: September 28, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Albert Pfiffner, Ulrich Schwieter
  • 2,4-Dodecadienoic acid esters and use for insecticides
    Patent number: 3983247
    Abstract: The present invention relates to polyene compounds, a process for their preparation, pesticidal compositions containing same, and a method of providing a locus free from pests using said pesticides, alone or in composition.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: September 28, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Ulrich Schwieter, Peter Loeliger, Albert Pfiffner, Milos Suchy, Rene Zurfluh
  • Propargyl esters of 7,11-substituted dodecadienoic acids
    Patent number: 3966780
    Abstract: Polyene esters, ethers, carbamates, thioesters, amides, carbonyls and nitriles, containing at least one pair of conjugated double bonds, which are useful in killing pests, such as insects, and preventing the proliferation of such pests by upsetting their hormonal balance.
    Type: Grant
    Filed: June 8, 1973
    Date of Patent: June 29, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Peter Loeliger, Albert Pfiffner, Ulrich Schwieter, Milos Suchy, Rene Zurfluh
  • Alkynyloxy-phenyl derivatives
    Patent number: 3957833
    Abstract: Alkynyl, benzyl or phenyl, ethers and esters which are ring substituted with an oxy or a thio aliphatic chain. These ethers and esters are useful in killing and preventing the proliferation of insects by upsetting their hormonal balance.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: May 18, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Albert Pfiffner, Norbert Rigassi, Ulrich Schwieter, Milos Suchy
  • Phenyl derivatives
    Patent number: 3957763
    Abstract: The present invention relates to phenyl derivatives, useful as insect hormones and with a method of providing a locus free of pests when using said phenyl derivatives or compositions containing same.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: May 18, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Ulrich Schwieter, Peter Loeliger, Albert Pfiffner, Milos Suchy, Rene Zurfluh
  • Propynyl benzyl ethers
    Patent number: 3946040
    Abstract: Propynyl benzyl ethers having juvenile hormone-like activity which are 4-halogen, lower alkyl, lower alkoxy or propynyloxy substituted or 3,4-lower alkylenedioxy substituted and which can also be 3,5- and/or .alpha.-substituted, and insecticide compositions that include at least one propynyl benzyl ether and that can also include a conventional insect-poison.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: March 23, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Albert Pfiffner, Norbert Rigassi, Ulrich Schwieter, Milos Suchy
  • Phenyl derivatives
    Patent number: 3944531
    Abstract: Phenyloxy, phenylsulfinyl, phenylthio, phenylsulfonyl, benzyloxy, benzylthio, benzylsulfinyl, or benzylsulfonyl, alkyl or alkenyl derivatives wherein the alkyl or alkenyl group contains at least 7 carbon atoms which are useful in killing and preventing proliferation of insects by upsetting their hormone balance.
    Type: Grant
    Filed: April 20, 1970
    Date of Patent: March 16, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Albert Pfiffner, Norbert Rigassi, Ulrich Schwieter, Milos Suchy