Patents by Inventor Thomas Durig

Thomas Durig 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: 20240020529
    Abstract: Present invention is directed to an artificial intelligence-based method and a system, that uses both experimental results data and molecular simulation to predict properties of amorphous solid dispersions such as glass transition temperature, dissolution profile, and/or physical stability. The method and system of the present invention enable rational design of amorphous solid dispersions for poorly water-soluble drugs and significantly reduce the time and resource required for amorphous solid dispersions formulation development.
    Type: Application
    Filed: October 27, 2021
    Publication date: January 18, 2024
    Applicant: ISP INVESTMENTS LLC
    Inventors: Yunxia BI, Thomas DURIG, Solomon Howard JACOBSON
  • Publication number: 20210347978
    Abstract: A peroxide stable polymer composition comprises a mixture of polyvinylpyrrolidone/vinyl acetate copolymer (PVP/VA) and butylated hydroxy anisole (BHA), an antioxidant. Products or applications comprising said stable polymer composition and a process for the preparation thereof are disclosed in the present application.
    Type: Application
    Filed: September 17, 2019
    Publication date: November 11, 2021
    Applicant: ISP INVESTMENTS LLC
    Inventors: Thomas DURIG, Paul C. GILLETTE, Michael A. TALLON
  • Patent number: 10596261
    Abstract: The present invention provides a coprocessed excipient composition and a method of producing the same. The coprocessed excipient comprises vinyl lactam derived polymer and a deagglomerated coprocessing agent. The coprocessing agent is fumed silica, colloidal silica or silicon dioxide. The coprocessed excipient is prepared by a continuous process and has a Brookfield cohesion of less than 0.12 kPa, a bulk density of at least 0.249 gram/milliliter and a flow property as measured by Johanson flow rate number increase from 1.1 to 5.0 fold.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: March 24, 2020
    Inventors: Divya Tewari, Yevgeniya A. Titova, Brad Beissner, Thomas Durig
  • Patent number: 10172944
    Abstract: An excipient composition having good bulk density and improved flow characteristics is provided. The present invention particularly provides a coprocessed excipient composition and a method of producing the same. The coprocessed excipient comprises cellulose derived polymer and a deagglomerated coprocessing agent. The coprocessing agent is fumed silica, colloidal silica or silicon dioxide. The coprocessed excipient is prepared in a continuous process and has excellent compactability and improved flow property as measured by Johanson flow rate number increase from 1.1 to 5.0 fold, is characterized by a Brookfield cohesion factor of less than 0.2 kPa and a bulk density of at least 0.249 g/ml.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: January 8, 2019
    Assignee: ISP INVESTMENTS LLC
    Inventors: Divya Tewari, Yevgeniya A. Titova, Brad Beissner, Thomas Durig
  • Publication number: 20160120989
    Abstract: An excipient composition having good bulk density and improved flow characteristics is provided. The present invention particularly provides a coprocessed excipient composition and a method of producing the same. The coprocessed excipient comprises cellulose derived polymer and a deagglomerated coprocessing agent. The coprocessing agent is fumed silica, colloidal silica or silicon dioxide. The coprocessed excipient is prepared in a continuous process and has excellent compactability and improved flow property as measured by Johanson flow rate number increase from 1.1 to 5.0 fold, is characterized by a Brookfield cohesion factor of less than 0.2 kPa and a bulk density of at least 0.249 g/ml.
    Type: Application
    Filed: March 12, 2014
    Publication date: May 5, 2016
    Applicant: ISP INVESTMENTS INC.
    Inventors: Divya TEWARI, Yevgeniya A. TITOVA, Brad BEISSNER, Thomas DURIG
  • Publication number: 20150359895
    Abstract: The present invention provides a coprocessed excipient composition and a method of producing the same. The coprocessed excipient comprises vinyl lactam derived polymer and a deagglomerated coprocessing agent. The coprocessing agent is fumed silica, colloidal silica or silicon dioxide. The coprocessed excipient is prepared by a continuous process and has a Brookfield cohesion of less than 0.12 kPa, a bulk density of at least 0.249 gram/milliliter and a flow property as measured by Johanson flow rate number increase from 1.1 to 5.0 fold.
    Type: Application
    Filed: March 12, 2014
    Publication date: December 17, 2015
    Applicant: ISP INVESTMENTS INC.
    Inventors: Divya TEWARI, Yevgeniya A. TITOVA, Brad BEISSNER, Thomas DURIG
  • Patent number: 9114170
    Abstract: A stable and high loading ternary solid dispersion composition comprising (a) about 50% wt. to about 90% wt. of amorphous Efavirenz; (b) about 10% wt. to about 50% wt. of polyvinyl pyrrolidone (PVP), a first polymer; (c) about 1% wt. to about 30% wt. of a water-soluble second polymer; and (d) optionally about 0.1% wt. to about 50% wt. of at least one pharmaceutically acceptable excipient. Also discloses a high loading ternary composition comprising (a) a solid dispersion composition comprising (i) about 50% wt. to about 90% wt. of amorphous Efavirenz; (ii) about 10% wt. to about 50% wt. of polyvinyl pyrrolidone, a first polymer; (b) about 1% wt. to about 30% wt. of a water-soluble second polymer blended with solid dispersion of composition of (a); and (c) optionally about 0.1% wt. to about 50% wt. of at least one pharmaceutically acceptable excipient.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 25, 2015
    Assignee: ISP INVESTMENTS INC.
    Inventors: Yunxia Bi, Mohammed Abdul Rahman, James David Lester, Thomas Durig, Randy Bull
  • Patent number: 8968456
    Abstract: The present invention relates to a film coating composition used for film coating pharmaceutical tablets, nutritional supplements, confectionary forms and the like. The film coating composition comprises a water soluble film former such as hydroxypropylcellulose, hydroxypropylmethylcellulose, hydroxyethylcellulose, starches, modified starches and the like and one or more hydrophobic compounds, such as metal salt of higher fatty acids, higher fatty alcohol, natural wax either from vegetable, animal origin or synthetic wax. Optionally, the film coating composition may include plasticizers, colorants, such as pigments and/or flow aids.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: March 3, 2015
    Assignee: Hercules Incorporated
    Inventors: Thomas Durig, Divya Tewari
  • Publication number: 20110048281
    Abstract: The present invention relates to a film coating composition used for film coating pharmaceutical tablets, nutritional supplements, confectionary forms and the like. The film coating composition comprises a water soluble film former such as hydroxypropylcellulose, hydroxypropylmethylcellulose, hydroxyethylcellulose, starches, modified starches and the like and one or more hydrophobic compounds, such as metal salt of higher fatty acids, higher fatty alcohol, natural wax either from vegetable, animal origin or synthetic wax. Optionally, the film coating composition may include plasticizers, colorants, such as pigments and/or flow aids.
    Type: Application
    Filed: August 26, 2010
    Publication date: March 3, 2011
    Applicant: HERCULES INCORPORATED
    Inventors: Thomas DURIG, Divya TEWARI
  • Publication number: 20110002986
    Abstract: The present invention relates to formulations for use as enteric coatings. More particularly, the present invention relates to a formulation comprising a blend of food grade ingredients that can be readily dispersed in water. This dispersion exhibits low viscosity and can easily be coated onto solid dosage forms through spraying and the like to provide an enteric coating on the solid dosage form.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 6, 2011
    Applicant: Hercules Incorporated
    Inventors: Thomas Durig, Yuda Zong
  • Publication number: 20090252767
    Abstract: The present invention relates to formulations for use as enteric coatings. More particularly, the present invention relates to a formulation comprising a dry blend of food grade ingredients that can be readily dispersed in water. This dispersion exhibits low viscosity and can easily be coated onto solid dosage forms through spraying and the like to provide an enteric coating on the solid dosage form.
    Type: Application
    Filed: November 13, 2008
    Publication date: October 8, 2009
    Inventors: Thomas Durig, Derek Ronell Malone, Yuda Zong
  • Publication number: 20080305166
    Abstract: A rapidly disintegrating, orally administered tablet or compressed dosage form, comprising ethylcellulose (EC) as a directly compressible binder which enhances tablet robustness as manifested by improved strength, lower friability, lower hygroscopicity and yet, hydrophobic nature notwithstanding, does not retard disintegration, but shortens disintegration time or is disintegration time neutral when co-formulated with disintegrants and other water-soluble excipients such as sugar alcohols.
    Type: Application
    Filed: May 8, 2008
    Publication date: December 11, 2008
    Inventor: Thomas Durig
  • Patent number: 7229642
    Abstract: Disclosed herein is a oral extended release dosage form comprising a plurality of granules of an effective amount of a pharmaceutically active compound, at least one amino acid, and an intragranular polymer in which the granule is dispersed within a hydrophilic extragranular polymer matrix which is more rapidly hydrating than the intragranular polymer. The amino acid is selected for hydropathy characteristics depending on solubility characteristics of the active compound.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: June 12, 2007
    Assignee: Scolr, Inc.
    Inventors: A. Reza Fassihi, Thomas Dürig
  • Publication number: 20050238717
    Abstract: Disclosed herein is a oral extended release dosage form comprising a plurality of granules of an effective amount of a pharmaceutically active compound, at least one amino acid, and an intragranular polymer in which the granule is dispersed within a hydrophilic extragranular polymer matrix which is more rapidly hydrating than the intragranular polymer. The amino acid is selected for hydropathy characteristics depending on solubility characteristics of the active compound.
    Type: Application
    Filed: June 22, 2005
    Publication date: October 27, 2005
    Inventors: A. Fassihi, Thomas Dürig
  • Patent number: 6936275
    Abstract: Disclosed herein is a oral extended release dosage form comprising a plurality of granules of an effective amount of a pharmaceutically active compound, at least one amino acid, and an intragranular polymer in which the granule is dispersed within a hydrophilic extragranular polymer matrix which is more rapidly hydrating than the intragranular polymer. The amino acid is selected for hydropathy characteristics depending on solubility characteristics of the active compound.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: August 30, 2005
    Assignee: Scolr, Inc.
    Inventors: A. Reza Fassihi, Thomas Dürig
  • Publication number: 20030219480
    Abstract: Disclosed herein is a oral extended release dosage form comprising a plurality of granules of an effective amount of a pharmaceutically active compound, at least one amino acid, and an intragranular polymer in which the granule is dispersed within a hydrophilic extragranular polymer matrix which is more rapidly hydrating than the intragranular polymer. The amino acid is selected for hydropathy characteristics depending on solubility characteristics of the active compound.
    Type: Application
    Filed: February 11, 2003
    Publication date: November 27, 2003
    Inventors: A. Reza Fassihi, Thomas Durig
  • Patent number: 6592901
    Abstract: A pharmaceutical dosage form composition is composed of an ethylcellulose that has an ethoxyl range lower limit of 49.6%, an a viscosity of less than 53 cps and at least one active pharmaceutical ingredient. This dosage form is highly compressible and compactible forming harder tables or pellets with better release retardation than comparable prior art tablets.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: July 15, 2003
    Assignee: Hercules Incorporated
    Inventors: Thomas Durig, Ronald Haywood Hall, Richard A. Salzstein
  • Publication number: 20030077327
    Abstract: A pharmaceutical dosage form composition is composed of an ethylcellulose that has an ethoxyl range lower limit of 49.6%, an a viscosity of less than 53 cps and at least one active pharmaceutical ingredient. This dosage form is highly compressible and compactible forming harder tables or pellets with better release retardation than comparable prior art tablets.
    Type: Application
    Filed: October 15, 2001
    Publication date: April 24, 2003
    Inventors: Thomas Durig, Ronald Haywood Hall, Richard A. Salzstein
  • Patent number: 6517868
    Abstract: Disclosed herein is a tableted oral extended release dosage form comprising a plurality of granules of an effective amount of a pharmaceutically active compound, at least one amino acid, and an intragranular polymer in which the granule is dispersed within a hydrophilic extragranular polymer matrix which is more rapidly hydrating than the intragranular polymer. The amino acid is selected for hydropathy characteristics depending on solubility characteristics of the active compound.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: February 11, 2003
    Inventors: A. Reza Fassihi, Thomas Dürig
  • Publication number: 20020061332
    Abstract: Disclosed herein is a tableted oral extended release dosage form comprising a plurality of granules of an effective amount of a pharmaceutically active compound, at least one amino acid, and an intragranular polymer in which the granule is dispersed within a hydrophilic extragranular polymer matrix which is more rapidly hydrating than the intragranular polymer. The amino acid is selected for hydropathy characteristics depending on solubility characteristics of the active compound.
    Type: Application
    Filed: November 30, 2001
    Publication date: May 23, 2002
    Inventors: A. Reza Fassihi, Thomas Durig