Patents by Inventor Robert K. Yang

Robert K. Yang 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: 4882157
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coated with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lengths of about 4 carbons or less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and(b) a confectionery matrix comprising a binder system comprising gelatin and a humectant material selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: November 21, 1989
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4882155
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coated with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lengths of about 4 carbons or less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and(b) a confectionery matrix comprising a binder system comprising gelatin and a humectant material selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: November 21, 1989
    Assignee: Warner Lambert Co.
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4882158
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coated with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lengths of about 4 carbons or less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and(b) a confectionery matrix comprising a binder system comprising gelatin and a humectant material selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: November 21, 1989
    Assignee: Warner Lambert Co.
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4882160
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coated with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lengths of about 4 carbons or less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and(b) a confectionery matrix comprising a binder system comprising gelatin and a humectant material selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: November 21, 1989
    Assignee: Warner Lambert Co.
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4882153
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coated with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lengths of about 4 carbons or less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and(b) a confectionery matrix comprising a binder system comprising gelatin and a humectant material selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: November 21, 1989
    Assignee: Warner Lambert Co.
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4882151
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coated with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lenghts of about 4 carbons or less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and(b) a confectionery matrix comprising a binder system comprising gelatin and a humectant maerial selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: November 21, 1989
    Assignee: Warner Lambert Co.
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4882152
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coatd with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lengths of about 4 carbons or less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and p1 (b) a confectionery matrix comprising a binder system comprising gelatin and a humectant material selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: November 21, 1989
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4882156
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coated with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lengths of about 4 carbons or less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and(b) a confectionery matrix comprising a binder system comprising gelatin and a humectant material selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: November 21, 1989
    Assignee: Warner Lambert Co.
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4882154
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coated with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lengths of about 4 carbons of less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and(b) a confectionery matrix comprising a binder system comprising gelatin and a humectant material selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: November 21, 1989
    Assignee: Warner Lambert Co.
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4879108
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coated with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lengths of about 4 carbons or less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and(b) a confectionery matrix comprising a binder system comprising gelatin and a humectant material selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: November 7, 1989
    Assignee: Warner-Lambert Company
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4876095
    Abstract: The present invention is a chewing gum base composition and a method for making same which includes an elastomer and a resin prepared in the absence of rosin esters and terpene components which includes an elastomer component raised to a compatibilization temperature for addition of a compatibilization component. The composition includes a high melting point compatibilization component added under low shear mixing conditions at a temperature sufficient to masticate the elastomer for forming a substantially homogeneous mass with the resin component. The compatibilization component is capable of effectuating dissociation of the elastomer under the conditions of temperature and mixing for forming the substantially homogeneous mass. Finally, a resin component is added also under low shear mixing conditions and mildly elevated temperatures until a substantially homogenous gum base mass is formed.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: October 24, 1989
    Assignee: Warner-Lambert Company
    Inventor: Robert K. Yang
  • Patent number: 4855145
    Abstract: The aluminum salt of saccharin and a method for its preparation are disclosed. Chewing gum compositions comprising the novel salt are prepared.
    Type: Grant
    Filed: July 27, 1984
    Date of Patent: August 8, 1989
    Assignee: Warner-Lambert Company
    Inventors: Martin M. Rieger, Robert K. Yang
  • Patent number: 4828857
    Abstract: A method of preparing a delivery system wherein in the core material is a sweetener, flavoring or the like and is protected by a matrix coating which process comprises:(A) forming an agglomerate of the core material in a hydrophobic matrix coating comprising the steps of melting the hydrophobic coating and dispersing the core material uniformly therein; feeding the dispersion into a heat controlled high pressure spray nozzle; atomizing the dispersion under controlled pressure to maintain the particle size between about 200 to about 30 mesh; collecting the congealed, dry spherical-like particles; and(B) coating the agglomerated particles by conducting the particles through a stream of air passing through a zone of atomized droplets of a second hydrophobic material.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: May 9, 1989
    Assignee: Warner-Lambert Company
    Inventors: Shri C. Sharma, Robert K. Yang, James J. Shaw
  • Patent number: 4824681
    Abstract: The present invention comprises the encapsulation of a sweetening agent in a coating material including a hydrophobic polymer and a hydrophobic plasticizer. The encapsulated sweetening agent is protected from deterioration due to moisture and provides controlled release of sweetener in products intended to be chewed during consumption.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: April 25, 1989
    Assignee: Warner-Lambert Company
    Inventors: Alexander M. Schobel, Robert K. Yang
  • Patent number: 4804548
    Abstract: The present inventive compositions concern a stable delivery system capable of effecting a controlled release of core material comprising:(A) at least one natural or artificial core material selected from the group consisting of amino acid based sweeteners, dipeptide sweeteners, glycyrrhizin, saccharin and its salts, acesulfame salts, cyclamates, steviosides, talin, dihyrochalcone compounds, drugs, medicaments, flavoring agents and mixtures thereof; and(B) a hydrophobic matrix consisting essentially of(i) lecithin; and(ii) an edible material having a melting point in the range of about 25.degree. C. to about 100.degree. C. selected from the group consisting of (a) fatty acids having an iodine value of about 1 to about 10, (b) natural waxes, (c) synthetic waxes and (d) mixtures thereof; and(iii) at least one glyceride.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: February 14, 1989
    Assignee: Warner-Lambert Company
    Inventors: Shri C. Sharma, Robert K. Yang, James J. Shaw
  • Patent number: 4797288
    Abstract: A drug delivery system comprising a core material comprising a drug, and a hydrophobic matrix coating the core. The coating delays hydration of the drug and masks the taste of the drug. The coating comprises an emulsifier, an edible fatty acid or wax and a glyceride. The delivery system can be incorporated into various food products, pharmaceutical preparations and proprietary products.
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: January 10, 1989
    Assignee: Warner-Lambert Company
    Inventors: Shri C. Sharma, James J. Shaw, Robert K. Yang
  • Patent number: 4778676
    Abstract: A chewable delivery system for actives comprising:(a) an active pre-coated with at least one material selected from the group consisting of lecithin, polyoxyalkylenes having chain lengths of about 4 carbons or less, glycerides having a melting point of 100.degree. C. or less, polyalkyleneglycols having a molecular weight of 3,700 or less, synthetic and natural waxes and mixtures thereof; and(b) a confectionery matrix comprising a binder system comprising gelatin and a humectant material selected from the group consisting of glycerin and its lower alkyl (C.sub.2-7) ester derivatives; a sweetener; and about 1% to about 30% by weight water.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: October 18, 1988
    Assignee: Warner-Lambert Company
    Inventors: Robert K. Yang, Shri C. Sharma, Shan-Shan Sheu, James J. Shaw
  • Patent number: 4762930
    Abstract: The aluminum salt of saccharin and a method for its preparation are disclosed. Chewing gum compositions comprising the novel salt are prepared.
    Type: Grant
    Filed: July 27, 1984
    Date of Patent: August 9, 1988
    Assignee: Warner-Lambert Company
    Inventors: Martin M. Rieger, Robert K. Yang
  • Patent number: 4753790
    Abstract: A process for producing a sorbitol coated comestible is disclosed. The process comprises applying to a substantially anhydrous edible core at least two coating solutions comprising sorbitol to coat the edible core,wherein the first coating solution comprises:(a) about 77 to about 81 wt % sorbitol solution comprising about 65 to about 75 wt % sorbitol;(b) about 9.5 to about 12.5 wt % crystalline sorbitol powder;(c) about 0.25 to about 1.5 wt % of at least one film-forming agent; and(d) about 0.1 to about 5.0 wt % of at least one crystallization retardant; andwherein the second coating solution comprises:(a) about 82 to about 92 wt % sorbitol solution comprising about 65 to about 75 wt % sorbitol;(b) about 1.0 to about 2.5 wt % crystalline sorbitol powder;(c) about 0.05 to about 2.0 wt % of at least one film-forming agent; and(d) about 0.1 to about 0.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: June 28, 1988
    Assignee: Warner-Lambert Company
    Inventors: Jose N. Silva, Robert K. Yang, Jose F. Zamudio-Tena
  • Patent number: 4752485
    Abstract: The present inventive compositions concern a stable delivery system capable of effecting a controlled release of core material comprising:(A) at least one natural or artificial core material selected from the group consisting of amino acid based sweeteners, dipeptide sweeteners, glycyrrhizin, saccharin and its salts, acesulfame salts, cyclamates, steviosides, talin, dihyrochalcone compounds, drugs, medicaments, flavoring agents and mixtures thereof; and(B) a hydrophobic matrix consisting essentially of(i) lecithin; and(ii) an edible material having a melting point in the range of about 25.degree. C. to about 100.degree. C. selected from the group consisting of (a) fatty acids having an iodine value of about 1 to about 10, (b) natural waxes, (c) synthetic waxes and (d) mixtures thereof; and(iii) at least one glyceride.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: June 21, 1988
    Assignee: Warner-Lambert Company
    Inventors: Shri C. Sharma, Robert K. Yang, James J. Shaw