Patents by Inventor Stuart C. Porter

Stuart C. Porter 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).

  • Publication number: 20210371691
    Abstract: The present application provides high solids film coating compositions comprising a water-soluble cellulose ether, hydroxy propyl cellulose (HPC), a poly (N-vinyl pyrrolidone-co-vinyl acetate) copolymer, a film-forming agent based on D-glucose, plasticizer, medium chain triglycerides (MCT) and an anti-tack agent. The invention further provides a process for preparing the above described film coating compositions and method of coating solid substrate with such coating compositions.
    Type: Application
    Filed: October 7, 2019
    Publication date: December 2, 2021
    Applicant: ISP INVESTMENTS LLC
    Inventors: Kapish KARAN, Ronald HACH, Stuart C. PORTER
  • Patent number: 8883176
    Abstract: The invention describes a coating composition comprising an effective amount of a water-soluble cellulose ether, a poly(N-vinyl pyrrolidone-co-vinyl acetate) copolymer, a film-forming agent based on D-glucose, and a plasticizer.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: November 11, 2014
    Assignee: ISP Investments Inc.
    Inventors: Lana L. Terzian, Stuart C. Porter
  • Publication number: 20110189245
    Abstract: The invention describes a coating composition comprising an effective amount of a water-soluble cellulose ether, a poly(N-vinyl pyrrolidone-co-vinyl acetate) copolymer, a film-forming agent based on D-glucose, and a plasticizer.
    Type: Application
    Filed: September 24, 2009
    Publication date: August 4, 2011
    Inventors: Lana L. Terzian, Stuart C. Porter
  • Patent number: 6468561
    Abstract: Providing a film coating on solid forms such as pharmaceutical tablets, foods, confectionery forms, seeds for agriculture, and the like by coating them with polydextrose, or a combination of polydextrose and another polymer, or a layer of polydextrose overcoated by a layer of another polymer.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: October 22, 2002
    Assignee: BPSI Holdings, Inc.
    Inventors: Susan M. Grillo, Rita M. Steffenino, Stuart C. Porter, Edward J. Woznicki, David K. Isganitis
  • Patent number: 6348090
    Abstract: A dry film coating composition for forming a coating suspension for film coating nutritional supplements, pharmaceutical tablets, and the like, including tapica dextrin and a detackifier.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: February 19, 2002
    Assignee: BPSI Holdings, Inc.
    Inventors: Susan M. Grillo, Brian Korchok, Bruce Kinsey, Stuart C. Porter, George Reyes, Thomas J. Burke, Charles Cunningham
  • Patent number: 6274162
    Abstract: A dry film coating composition for forming a coating suspension for film coating pharmaceuticals, food, confectionery forms, agricultural seeds, and the like, comprises (1) a primary film former, the primary film former comprising low bloom strength gelatin, or hydroxyethyl cellulose, or a combination thereof, and (2) a secondary film former, or a plasticizer, or a surfactant, or a glidant, or a suspension aid, or a colorant, or a flavorant, or a combination thereof.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: August 14, 2001
    Assignee: BPSI Holdings, Inc.
    Inventors: Rita M. Steffenino, Charles F. Vesey, Kurt A. Fegely, Brian D. Korchok, Stuart C. Porter
  • Patent number: 6267808
    Abstract: A dry film coating composition used to make a bright white film coating for nutritional supplements, pharmaceutical tablets, and the like, comprises dextrose, an auxiliary film-former, and titanium dioxide. Optionally, but advantageously, the coating composition also ay include one or more of the following components: a plasticizer, a surfactant, a flow aid, and a preservative.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: July 31, 2001
    Assignee: BPSI Holdings, Inc.
    Inventors: Susan M. Grillo, Brian Korchok, Bruce Kinsey, Melanie Hartman, Stuart C. Porter, Rita Steffenino, George Reyes, Thomas J. Burke
  • Patent number: 6248391
    Abstract: A dry film coating composition used to make a bright white film coating for nutritional supplements, pharmaceutical tablets, and the like, comprises dextrose, an auxiliary film-former, and titanium dioxide. Optionally, but advantageously, the coating composition also may include one or more of the following components: a plasticizer, a surfactant, a flow aid, and a preservative.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: June 19, 2001
    Assignee: BPSI Holdings, Inc.
    Inventors: Susan M. Grillo, Brian Korchok, Bruce Kinsey, Melanie Hartman, Stuart C. Porter, Rita Steffenino, George Reyes, Thomas J. Burke
  • Patent number: 6183808
    Abstract: A dry film coating composition for forming a coating suspension for film coating nutritional supplements, pharmaceutical tablets, and the like, comprising a dextrin and a detackifier.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: February 6, 2001
    Assignee: BPSI Holdings, Inc.
    Inventors: Susan M. Grillo, Brian Korchok, Bruce Kinsey, Stuart C. Porter, George Reyes, Thomas J. Burke, Charles Cunningham
  • Patent number: 6039976
    Abstract: A non-toxic edible enteric film coating dry powder composition for use in making an aqueous enteric coating suspension which may be used in coating pharmaceutical tablets and the like comprises an enteric film forming polymer, a detackifier, a viscosity modifier, and an alkalizing/anti-coagulating agent. Advantageously, the inventive dry powder compositions may include a solid plasticizer, a lubricant, an anti-caking agent, a liquid plasticizer, and a pigment.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: March 21, 2000
    Assignee: BPSI Holdings, Inc.
    Inventors: Dev K. Mehra, Chittamuru Ramireddy, Li-Juan Tang, Stuart C. Porter
  • Patent number: 6013282
    Abstract: A non-toxic edible enteric film coating dry powder composition for use in making an aqueous enteric coating suspension which may be used in coating pharmaceutical tablets and the like comprises an enteric film forming polymer, a detackifier, a viscosity modifier, and an alkalizing/anti-coagulating agent. Advantageously, the inventive dry powder compositions may include a solid plasticizer, a lubricant, an anti-caking agent, a liquid plasticizer, and a pigment.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: January 11, 2000
    Assignee: Bpsi Holdings, Inc.
    Inventors: Dev K. Mehra, Chittamuru Ramireddy, Li-Juan Tang, Stuart C. Porter
  • Patent number: 5733575
    Abstract: A non-toxic edible enteric film coating dry powder composition for use in making an aqueous enteric coating suspension which may be used in coating pharmaceutical tablets and the like comprises an enteric film forming polymer, a detackifier, a viscosity modifier, and an alkalizing/anti-coagulating agent. Advantageously, the inventive dry powder compositions may include a solid plasticizer, a lubricant, an anti-caking agent, a liquid plasticizer, and a pigment.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: March 31, 1998
    Assignee: BPSI Holdings, Inc.
    Inventors: Dev K. Mehra, Chittamuru Ramireddy, Li-Juan Tang, Stuart C. Porter
  • Patent number: 4828841
    Abstract: A pharmaceutical, confectionery or food tablet coated on all its exterior surfaces with maltodextrin, which masks the characteristic taste of the tablet ingredients and does not have a slimy taste, with the coating composition comprising maltodextrin, an effective amount of a plasticizer to make the maltodextrin non-brittle and non-cracking when coated onto a tablet, an effective amount of a detackifier for making the maltodextrin and plasticizer non-tacky, a secondary film former to impart gloss and strength to the maltodextrin film coating, and a colorant for imparting color. A method of making tablets coated with maltodextrin.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: May 9, 1989
    Assignee: Colorcon, Inc.
    Inventors: Stuart C. Porter, Edward J. Woznicki
  • Patent number: 4725441
    Abstract: A pharmaceutical, confectionery or food tablet coated on all its exterior surfaces with maltodextrin, which masks the characteristic taste of the tablet ingredients and does not have a slimy taste, with the coating composition comprising maltodextrin, an effective amount of a plasticizer to make the maltodextrin non-brittle and non-cracking when coated onto a tablet, an effective amount of a detackifier for making the maltodextrin and plasticizer non-tacky, a secondary film former to impart gloss and strength to the maltodextrin film coating, and a colorant for imparting color. A method of making tablets coated with maltodextrin.
    Type: Grant
    Filed: October 1, 1986
    Date of Patent: February 16, 1988
    Assignee: Colorcon, Inc.
    Inventors: Stuart C. Porter, Edward J. Woznicki
  • Patent number: 4704295
    Abstract: A non-toxic edible enteric film coating dry powder and aqueous enteric coating suspension for coating pharmaceutical tablets and the like; the enteric coated tablets; and methods of making the enteric coating dry powder, the aqueous coating suspension, and of coating the tablets.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: November 3, 1987
    Assignee: Colorcon, Inc.
    Inventors: Stuart C. Porter, Edward J. Woznicki, Susan M. Grillo, Louis F. D'Andrea
  • Patent number: 4683256
    Abstract: A dry powder edible film coating composition for use in pharmaceuticals, confectionery and food, comprising a dry mixture including powdered particles of a film forming non-toxic polymer, powdered edible pigment particles, and an edible polymer plasticizer, said dry mixture being solvent free. A method of making a dry powder edible film coating composition of powdered pigment particles for use in pharmaceuticals, confectionery and food, comprising the steps of mixing a powder of a film forming polymer and powdered pigment particles in a blender to form a polymer-pigment mix, and adding the plasticizer to the blender containing the polymer-pigment mix and mixing until the combined mix is blended to form the dry powder edible film coating composition.
    Type: Grant
    Filed: July 29, 1985
    Date of Patent: July 28, 1987
    Assignee: Colorcon, Inc.
    Inventors: Stuart C. Porter, Edward J. Woznicki
  • Patent number: 4643894
    Abstract: A pharmaceutical, confectionery or food tablet coated on all its exterior surfaces with maltodextrin, which masks the characteristic taste of the tablet ingredients and does not have a slimy taste, with the coating composition comprising maltodextrin, an effective amount of a plasticizer to make the maltodextrin non-brittle and non-cracking when coated onto a tablet, an effective amount of a detackifier for making the maltodextrin and plasticizer non-tacky, a secondary film former to impart gloss and strength to the maltodextrin film coating, and a colorant for imparting color. A method of making tablets coated with maltodextrin.
    Type: Grant
    Filed: July 24, 1984
    Date of Patent: February 17, 1987
    Assignee: Colorcon, Inc.
    Inventors: Stuart C. Porter, Edward J. Woznicki
  • Patent number: 4556552
    Abstract: A non-toxic edible enteric film coating dry powder and aqueous enteric coating suspension for coating pharmaceutical tablets and the like; the enteric coated tablets; and methods of making the enteric coating dry powder, the aqueous coating suspension, and of coating the tablets.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: December 3, 1985
    Assignee: Colorcon, Inc.
    Inventors: Stuart C. Porter, Edward J. Woznicki, Susan M. Grillo, Louis F. D'Andrea
  • Patent number: 4543370
    Abstract: A dry powder edible film coating composition for use in pharmaceuticals, confectionery and food, comprising a dry mixture including powdered particles of a film forming non-toxic polymer, powdered edible pigment particles, and an edible polymer plasticizer, said dry mixture being solvent free. A method of making a dry powder edible film coating composition of powdered pigment particles for use in pharmaceuticals, confectionery and food, comprising the steps of mixing a powder of a film forming polymer and powdered pigment particles in a blender to form a polymer-pigment mix, and adding the plasticizer to the blender containing the polymer-pigment mix and mixing until the combined mix is blended to form the dry powder edible film coating composition.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: September 24, 1985
    Assignee: Colorcon, Inc.
    Inventors: Stuart C. Porter, Edward J. Woznicki