Patents by Inventor Rodolphe Vonderwahl

Rodolphe Vonderwahl 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).

  • Phthalocyanine compounds and anti-microbial use
    Patent number: 4530924
    Abstract: A process for combating micro-organisms in or on organic or inorganic substrates and for protecting the said substrates against attack by micro-organisms, which comprises treating the substrates with a water-soluble phthalocyanine derivative, in the presence of oxygen and water and while irradiating with light in the infra-red and/or visible range, antimicrobical agents containing water-soluble phthalocyanine compounds as well as new phthalocyanine compounds are described.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: July 23, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Rudolf Polony, Gerhard Reinert, Gerd Holzle, Andre Pugin, Rodolphe Vonderwahl
  • Process for combating micro-organisms, and novel phthalocyanine compounds
    Patent number: 4318883
    Abstract: A process for combating micro-organisms in or on organic or inorganic substrates and for protecting the said substrates against attack by micro-organisms, which comprises treating the substrates with a water-soluble phthalocyanine derivative, in the presence of oxygen and water and while irradiating with light in the infra-red and/or visible range, antimicrobical agents containing water-soluble phthalocyanine compounds as well as new phthalocyanine compounds are described.
    Type: Grant
    Filed: February 15, 1980
    Date of Patent: March 9, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Rudolf Polony, Gerhard Reinert, Gerd Holzle, Andre Pugin, Rodolphe Vonderwahl