Patents by Inventor Christel Tempel

Christel Tempel 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).

  • Heat-sensitive recording material
    Patent number: 4611072
    Abstract: A heat-sensitive recording material which comprises in its color reactant system, as developer for the color former, at least one aluminum or zinc phenate of a phenolsulfonyl compound of the formula ##STR1## wherein R is C.sub.1 -C.sub.12 alkyl, cycloalkyl, phenyl, benzyl, or phenyl which is substituted by halogen, lower alkyl, lower alkoxy, nitro or methylenedioxy, andX is hydrogen, halogen, lower alkyl or lower alkoxy.
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: September 9, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Hermann Nachbur, Christel Tempel
  • Heat-sensitive recording material
    Patent number: 4536779
    Abstract: A heat-sensitive recording material which comprises in its color reactant system, as developer for the color former, at least one aluminum or zinc salt of a phenolsulfonyl compound of the formula ##STR1## wherein R is C.sub.1 -C.sub.12 alkyl, cycloalkyl, phenyl, benzyl, or phenyl which is substituted by halogen, lower alkyl, lower alkoxy, nitro or methylenedioxy, andX is hydrogen, halogen, lower alkyl or lower alkoxy.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: August 20, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Hermann Nachbur, Christel Tempel
  • Pressure-sensitive or heat-sensitive recording material
    Patent number: 4453744
    Abstract: A pressure-sensitive or heat-sensitive recording material which contains in its color reactant system, as developer for the color former, at least one metal-free compound of the formula ##STR1## wherein R is alkyl of 1 to 12 carbon atoms, cycloalkyl, phenyl, benzyl, or phenyl which is substituted by halogen, nitro, methyl, methoxy, ethoxy or methylenedioxy, and X is hydrogen, halogen, carboxyl, lower alkyl or lower alkoxy.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: June 12, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Albert Wurmli, Christel Tempel
  • Process for agglomerating a substance from a liquid system
    Patent number: 4208370
    Abstract: Described is a process for agglomerating a substance from a liquid system with subsequent separation and drying, which liquid system is composed of at least two liquids, which at 20.degree. C. are completely miscible with one another.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: June 17, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Roland Haberli, Hans Mollet, Christel Tempel