Patents Represented by Attorney Edwards McC. Roberts

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  • Fungicidal composition and method of controlling fungus infestation
    Patent number: 5723491
    Abstract: If the R-enantiomer of metalaxyl, furalaxyl or benalaxyl is used, this results in a markedly increased biodegradability of these plant fungicides in the soil and a higher activity on the plants, as compared with the data of the racemic active ingredients. Fungicidal compositions exhibiting said improved properties comprise either of these fungicides with a content of R-enantiomer of more than 70 percent by weight based on the total amount of active ingredient.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: March 3, 1998
    Assignee: Novartis Corporation
    Inventors: Cosima Nuninger, John Edward Nicholas Goggin, Dino Sozzi, Holm Ellgehausen
  • Dicyanobenzanthrone compounds
    Patent number: 4801406
    Abstract: The dyes of formula (1) as indicated in claim 1 are obtained by reacting 1-aminoanthraquinones with malodinitrile in the presence of titanium tetrachloride and a tertiary amine. These dyes are suitable e.g. for dyeing polyester material.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: January 31, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Hansrudolf Schwander