Patents by Inventor Peter Loeliger

Peter Loeliger 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).

  • 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
  • Preparation of cyclohexadiene compounds
    Patent number: 3962311
    Abstract: Cyclohexadienes are produced by heating in the presence of an organic solvent a compound of the formula: ##EQU1## wherein X is either --COCH.sub.3 or --COOR.sub.1, R.sub.1 is a lower alkyl group.The preferred cyclohexadienes are useful as intermediates in the preparation of odorants.
    Type: Grant
    Filed: August 16, 1974
    Date of Patent: June 8, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Peter Loeliger
  • 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