Patents by Inventor Christophe Perthuisot

Christophe Perthuisot 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).

  • Lavatory cleansing block having two fragrance regions
    Patent number: 6376442
    Abstract: A lavatory cleansing block having a perceived approximately constant intensity of fragrance throughout the life of the block, which comprises an inner region having an inner fragrance and an outer region having an outer fragrance which is different from said inner fragrance. The inner fragrance is present in a concentration by weight which is less than or equal to 1.1 times the concentration of the outer fragrance.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: April 23, 2002
    Assignee: Reckitt Benckiser France
    Inventors: Christophe Perthuisot, Veronique Mathieu