Patents by Inventor Josef H. Tsau

Josef H. Tsau 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).

  • Method to homogeneously mix liquids with powders
    Patent number: 5388772
    Abstract: Mixing frozen liquid particles with powder instead of spraying liquid on powder in a mechanical mixer results in improving mixing homogeneity, reducing processing time, and simplifying mixing equipment and method.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: February 14, 1995
    Inventor: Josef H. Tsau
  • Frozen liquid granulation process
    Patent number: 5388771
    Abstract: Replacing binder liquid with ground frozen binder liquid to granulate powders in a mechanical mixing granulator resulting in improving granulation homogeneity, reducing processing time, and simplifying the granulation method.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: February 14, 1995
    Inventor: Josef H. Tsau
  • Taste masking compositions
    Patent number: 5286489
    Abstract: This disclosure relates to drug-polymer matrix compositions comprising an active ingredient having an amine or amido group and a pharmaceutically acceptable copolymer having a plurality of carboxylic acid and ester groups wherein the matrix dissociates in a media having a pH of less than 4, thereby releasing the active ingredient into the media.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: February 15, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Josef H. Tsau, Nalinkant C. Damani
  • Process for preparing aspartame coated organic acid
    Patent number: 5114726
    Abstract: A coated consumable product and process for manufacturing such a product are disclosed. The product comprises aspartame and citric acid or malic acid made by use of a process which produces a substantially pure, dust-free, free-flowing, easily dissolvable product.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: May 19, 1992
    Assignee: The NutraSweet Company
    Inventors: Josef H. Tsau, Dennis Seagle, Steven Laurenz
  • Taste masking compositions
    Patent number: 4971791
    Abstract: This disclosure relates to drug-polymer matrix compositions comprising an active ingredient having an amine or amido group and a pharmaceutically acceptable copolymer having a plurality of carboxylic acid and ester groups wherein the matrix dissociates in a media having a pH of less than 4, thereby releasing the active ingredient into the media.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: November 20, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Josef H. Tsau, Nalinkant C. Damani
  • Process for preparing a comestible containing stirrer straw and product thereof
    Patent number: 4816268
    Abstract: This disclosure relates to a device for dispensing a comestible product into a liquid. In particular, the device is capable of dispensing unit dose amounts of a comestible product into a liquid.
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: March 28, 1989
    Inventor: Josef H. Tsau
  • Heat stabilized sweetener composition containing APM
    Patent number: 4704288
    Abstract: This invention encompasses a heat stabilized composition of aspartame, its salts or metal complexes and a partially hydrogenated vegetable oil melting at about 120.degree. F. or above. This composition is particularly useful in baking applications for aspartame.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: November 3, 1987
    Inventors: Josef H. Tsau, James G. Young
  • Sweetening composition
    Patent number: 4631195
    Abstract: A composition and method for heat stabilizing dipeptide sweeteners for baking and cooking is described using a polyglucose or a polymaltose.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: December 23, 1986
    Inventors: John A. Colliopoulos, James G. Young, Josef H. Tsau
  • Dipeptide sweetener-metal complexes
    Patent number: 4448716
    Abstract: The invention relates to metal complexes of dipeptide sweeteners, such as L-aspartyl-L-phenylalanine methyl ester, with improved dissolution rate, solubility and stability.
    Type: Grant
    Filed: March 4, 1982
    Date of Patent: May 15, 1984
    Assignee: G. D. Searle & Co.
    Inventor: Josef H. Tsau
  • Dipeptide sweetener sulfate and sulfonate salts
    Patent number: 4439460
    Abstract: Aspartyl dipeptide sweetener sulfate and alkyl sulfonate salts are described which have high thermal stability and a fast rate of dissolution in aqueous media. These salts can be almost universally substituted in place of sugar and are effective in baking and cold drink applications.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: March 27, 1984
    Assignee: G. D. Searle & Co.
    Inventors: Josef H. Tsau, James G. Young