Patents by Inventor Chang R. Lee

Chang R. Lee 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).

  • Patent number: 4740380
    Abstract: A clear, calcium-fortified aqueous acidic beverage is provided which can contain large amounts of dietary calcium while remaining clear and storage stable even during pasteurization and refrigeration. The beverage can comprise a clear aqueous solution of an organic calcium compound such as calcium gluconate at a pH of about 4 and below wherein the calcium compound content does not exceed the solubility limit of the compound in water. An inorganic calcium salt can be used alone or in combination with an organic calcium compound to form an acidic beverage provided the pH is adjusted with an organic acid.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: April 26, 1988
    Assignee: Stauffer Chemical Company
    Inventors: Nicholas Melachouris, Chang R. Lee
  • Patent number: 4675201
    Abstract: The thermogelation temperature of protein in a solution having a pH above the isoelectric point of the protein can be lowered within the range of the thermogelation temperature of egg albumen and an increase of stability of the protein in a solution having a pH below the isoelectric point of the protein by a process comprising cooling an ungelled heated protein-containing alkaline solution having a total protein content of less than about 20% wherein the pH of the solution is within the range of from about 7.5 to about 10 and the temperature is within the range of from about 50.degree. C. up to the gelation temperature of the protein to a temperature sufficiently low and within a sufficient time after the solution reaches its maximum temperature level to prevent any substantial further change in the protein structure or gelation.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: June 23, 1987
    Assignee: Ciba Corning Diagnostics Corp.
    Inventors: Chang R. Lee, Pei K. Chang
  • Patent number: 4636388
    Abstract: A purified protein particularly adapted for enzymatic hydrolysis can be prepared by gelling the protein followed by breaking the gel into particles and washing the particles in sufficient liquid to allow portions of the nonproteinaceous material in the gel matrix to diffuse into the liquid.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: January 13, 1987
    Assignee: Stauffer Chemical Company
    Inventors: Chifa F. Lin, Chang R. Lee
  • Patent number: 4595594
    Abstract: A cheese flavor product can be prepared by incubating cheese or cheese curd with a lipase enzyme, preincubating the mixture to partially digest the cheese or curd, incubating the partially digested cheese to develop the flavor and admixing cream with the product after preincubation or incubation. The product has an intense cheese flavor which is usable as an additive to cheese or imitation cheese to improve the flavor characteristics thereof.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: June 17, 1986
    Assignee: Stauffer Chemical Company
    Inventors: Chang R. Lee, Chifa F. Lin, Nicholas Melachouris
  • Patent number: 4482574
    Abstract: An improved hydrolysate is prepared from a water-soluble protein by enzymolysis wherein the protein has been heated under alkaline conditions for a period of time insufficient to gel the protein followed by cooling the solution to below 30.degree. C.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: November 13, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Chang R. Lee
  • Patent number: 4414240
    Abstract: The thermogelation temperature of egg albumen can be decreased by cooling an alkaline solution of egg albumen heated to a temperature within the range of from about 60.degree. C. and the gelation temperature of the egg albumen, the solution having a pH within the range of from about 8 and about 10 and an egg albumen content in said solution of less than about 20%, to a temperature sufficient to arrest further modification of the protein.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: November 8, 1983
    Assignee: Nutrisearch Company
    Inventor: Chang R. Lee