Patents by Inventor Chii-Fa Lin

Chii-Fa Lin 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).

  • Removal of trace heavy metal contaminants from algae and the carrageenan contained therein
    Patent number: 4112223
    Abstract: Heavy metal contaminants which are normally present in trace amounts are removed from those algae of the genera Gigartina and Iridaea which contain a major amount of lambda type or non-gel-forming carrageenan and from the carrageenan itself by soaking the algae in a solution containing a water-soluble potassium salt which does not cause appreciable extraction of the carrageenan from the algae.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: September 5, 1978
    Assignee: Stauffer Chemical Company
    Inventors: Chii-Fa Lin, Julian E. Blanch
  • Air freshener gels
    Patent number: 4056612
    Abstract: An air freshener gel consisting essentially of a novel gelling agent and an aqueous medium containing a volatile air freshener component. The novel gelling agent comprises carrageenan, locut bean gum, and a water soluble ammonium salt having a pH greater than about 5.0. The carrageenan contains at least 40% by weight of the carrageenan, kappa carrageenan. The improved air freshener gels exhibit practically no syneresis, improved water gel strength, and water viscosity.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: November 1, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Chii-Fa Lin