Patents Represented by Attorney Fred Philpit

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  • Ferroelectric chiral smectic liquid crystal composition
    Patent number: 4780241
    Abstract: A ferroelectric liquid crystal composition having a long helical pitch and a light switching element having a quick response property are provided. This composition comprises (1) at least one member selected from the group consisting of liquid crystal compounds having a smectic C phase and no helical structure and liquid crystal compounds having only a nematic phase as a liquid crystal phase and no helical structure and (2) at least one chiral smectic liquid crystal compounds.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: October 25, 1988
    Assignees: Chisso Corporation, Hitachi Ltd.
    Inventors: Kenji Furukawa, Kanetsugu Terashima
  • Formulated allergen preparation and its use
    Patent number: 4642232
    Abstract: The invention is concerned with a formulated preparation to be used for oral administration and containing an immunotherapeutically active amount of at least one allergen. The characteristic feature of the invention is that said formulated preparation is resistant to gastric juice and contains an antiallergic substance.
    Type: Grant
    Filed: January 28, 1985
    Date of Patent: February 10, 1987
    Assignee: Pharmacia AB
    Inventor: Rolf L. Yman