Patents by Inventor Thomas Buser

Thomas Buser 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: 11534406
    Abstract: In a delayed release formulation comprising a core containing a drug and a delayed release coating for providing intestinal release, release of the drug in the colon is accelerated by including an isolation layer between the core and the delayed release coating. The delayed release coating comprises an inner layer and an outer layer. The outer layer comprises a pH dependently soluble polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a soluble polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said soluble polymeric material being selected from the group consisting of a polycarboxylic acid polymer that is at least partially neutralised, and a non-ionic polymer, provided that, where said soluble polymeric material is a non-ionic polymer, said inner layer comprises at least one additive selected from a buffer agent and a base.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: December 27, 2022
    Assignee: Tillotts Pharma AG
    Inventors: Felipe José Oliveira Varum, Roberto Carlos Bravo González, Thomas Buser, Abdul Waseh Basit, Ana Cristina Freire
  • Patent number: 11517534
    Abstract: In a delayed release formulation comprising a core containing a drug and a delayed release coating for providing intestinal release, release of the drug in the colon is accelerated by including an isolation layer between the core and the delayed release coating. The delayed release coating comprises an inner layer and an outer layer. The outer layer comprises a pH dependently soluble polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a soluble polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said soluble polymeric material being selected from the group consisting of a polycarboxylic acid polymer that is at least partially neutralised, and a non-ionic polymer, provided that, where said soluble polymeric material is a non-ionic polymer, said inner layer comprises at least one additive selected from a buffer agent and a base.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: December 6, 2022
    Assignee: Tillotts Pharma AG
    Inventors: Felipe Josè Oliveira Varum, Roberto Carlos Bravo González, Thomas Buser, Abdul Waseh Basit, Ana Cristina Freire
  • Patent number: 11266605
    Abstract: The present invention relates to a modified release coated capsule and a process to obtain that capsule.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: March 8, 2022
    Assignee: TILLOTTS PHARMA AG
    Inventors: Roberto Carlos Bravo Gonzaléz, Felipe José Oliveira Varum, Thomas Buser
  • Publication number: 20220047516
    Abstract: Herein described is a modified release coated capsule and a process to obtain that capsule.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 17, 2022
    Applicant: Tillotts Pharma AG
    Inventors: Roberto Carlos Carlos BRAVO GONZALÉZ, Felipe José OLIVEIRA VARUM, Thomas BUSER
  • Publication number: 20220016040
    Abstract: A method produces a coatable core for a modified release drug formulation for oral administration. The coatable core has a high drug load of at least 70 wt % based on the total weight of the coatable core. The method involves the steps of granulating a composition containing a drug and at least one binder to form granules; blending the granules with a pharmacologically acceptable disintegrant and optionally, one or more additional pharmacologically acceptable excipients, to form a compression blend, wherein the disintegrant is present in an amount from about 0.5 wt % to about 5 wt %, based on the total weight of the coatable core; and compressing the compression blend using an external lubrication compression method to form a coatable core.
    Type: Application
    Filed: December 5, 2019
    Publication date: January 20, 2022
    Applicant: Tillotts Pharma AG
    Inventors: Thomas BUSER, Yalcin Cetinkaya-Coskun, Roberto Carlos Bravo González
  • Patent number: 11160762
    Abstract: The present invention relates to a modified release coated capsule and a process to obtain that capsule.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: November 2, 2021
    Assignee: Tillotts Pharma AG
    Inventors: Roberto Carlos Bravo Gonzaléz, Felipe José Oliveira Varum, Thomas Buser
  • Patent number: 10799515
    Abstract: In a delayed release formulation comprising a core containing a drug and a delayed release coating for providing intestinal release, release of the drug in the colon is accelerated by including an isolation layer between the core and the delayed release coating. The delayed release coating comprises an inner layer and an outer layer. The outer layer comprises a pH dependently soluble polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a soluble polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said soluble polymeric material being selected from the group consisting of a polycarboxylic acid polymer that is at least partially neutralised, and a non-ionic polymer, provided that, where said soluble polymeric material is a non-ionic polymer, said inner layer comprises at least one additive selected from a buffer agent and a base.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: October 13, 2020
    Assignee: TILLOTTS PHARMA AG
    Inventors: Felipe Jose Oliveira Varum, Roberto Carlos Bravo Gonzalez, Thomas Buser, Abdul Waseh Basit, Ana Cristina Freire
  • Publication number: 20200214987
    Abstract: In a delayed release formulation comprising a core containing a drug and a delayed release coating for providing intestinal release, release of the drug in the colon is accelerated by including an isolation layer between the core and the delayed release coating. The delayed release coating comprises an inner layer and an outer layer. The outer layer comprises a pH dependently soluble polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a soluble polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said soluble polymeric material being selected from the group consisting of a polycarboxylic acid polymer that is at least partially neutralised, and a non-ionic polymer, provided that, where said soluble polymeric material is a non-ionic polymer, said inner layer comprises at least one additive selected from a buffer agent and a base.
    Type: Application
    Filed: March 18, 2020
    Publication date: July 9, 2020
    Applicant: Tillotts Pharma AG
    Inventors: Felipe José OLIVEIRA VARUM, Roberto Carlos Bravo González, Thomas Buser, Abdul Waseh Basit, Ana Cristina Freire
  • Patent number: 10272048
    Abstract: In a delayed release formulation comprising a core containing a drug and a delayed release coating for providing intestinal release, release of the drug in the colon is accelerated by including an isolation layer between the core and the delayed release coating. The delayed release coating comprises an inner layer and an outer layer. The outer layer comprises a pH dependently soluble polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a soluble polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said soluble polymeric material being selected from the group consisting of a polycarboxylic acid polymer that is at least partially neutralized, and a non-ionic polymer, provided that, where said soluble polymeric material is a non-ionic polymer, said inner layer comprises at least one additive selected from a buffer agent and a base.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: April 30, 2019
    Assignee: Tillotts Pharma AG
    Inventors: Felipe Josè Oliveira Varum, Roberto Carlos Bravo González, Thomas Buser, Abdul Waseh Basit, Ana Cristina Freire
  • Patent number: 10226430
    Abstract: Delayed release of a drug to the colon is achieved from a delayed release formulation comprising a core and a coating for the core. The core comprises a drug and the coating comprises an inner layer and an outer layer. The outer layer comprises a mixture of a first polymeric material which is susceptible to attack by colonic bacteria, and a second polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a third polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said third polymeric material being selected from an at least partially neutralized polycarboxylic acid and a non-ionic polymer. In embodiments in which the third polymeric material is a non-ionic polymer, the inner layer comprises at least one of a buffer agent and a base.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: March 12, 2019
    Assignee: TILLOTTS PHARMA AG
    Inventors: Roberto Carlos Bravo Gonzalez, Thomas Buser, Frederic Jean-Claude Goutte, Abdul Waseh Basit, Felipe Jose Oliveira Varum, Ana Cristina Freire
  • Patent number: 9814681
    Abstract: In a delayed release formulation comprising a core containing a drug and a delayed release coating for providing intestinal release, release of the drug in the colon is accelerated by including an isolation layer between the core and the delayed release coating. The delayed release coating comprises an inner layer and an outer layer. The outer layer comprises a pH dependently soluble polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a soluble polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said soluble polymeric material being selected from the group consisting of a polycarboxylic acid polymer that is at least partially neutralised, and a non-ionic polymer, provided that, where said soluble polymeric material is a non-ionic polymer, said inner layer comprises at least one additive selected from a buffer agent and a base.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: November 14, 2017
    Assignee: Tillotts Pharma AG
    Inventors: Felipe José Oliveira Varum, Roberto Carlos Bravo González, Thomas Buser
  • Publication number: 20170266117
    Abstract: In a delayed release formulation comprising a core containing a drug and a delayed release coating for providing intestinal release, release of the drug in the colon is accelerated by including an isolation layer between the core and the delayed release coating. The delayed release coating comprises an inner layer and an outer layer. The outer layer comprises a pH dependently soluble polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a soluble polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said soluble polymeric material being selected from the group consisting of a polycarboxylic acid polymer that is at least partially neutralised, and a non-ionic polymer, provided that, where said soluble polymeric material is a non-ionic polymer, said inner layer comprises at least one additive selected from a buffer agent and a base.
    Type: Application
    Filed: June 2, 2017
    Publication date: September 21, 2017
    Applicant: Tillotts Phharma AG
    Inventors: Felipe Josè OLIVEIRA VARUM, Roberto Carlos BRAVO GONZÁLEZ, Thomas BUSER, Abdul Waseh BASIT, Ana Cristina FREIRE
  • Publication number: 20170119681
    Abstract: The present invention relates to a modified release coated capsule and a process to obtain that capsule.
    Type: Application
    Filed: May 13, 2015
    Publication date: May 4, 2017
    Applicant: TILLOTTS PHARMA AG
    Inventors: Roberto Carlos BRAVO GONZALÉZ, Felipe José OLIVEIRA VARUM, Thomas BUSER
  • Publication number: 20170079927
    Abstract: The present invention relates to a modified release coated capsule and a process to obtain that capsule.
    Type: Application
    Filed: May 13, 2015
    Publication date: March 23, 2017
    Applicant: Tillotts Pharma AG
    Inventors: Roberto Carlos BRAVO GONZALÉZ, Felipe José OLIVEIRA VARUM, Thomas BUSER
  • Publication number: 20170056354
    Abstract: A pharmaceutical formulation comprising at least one omega-3 polyunsaturated fatty acid in free acid form or a pharmacologically acceptable derivative thereof is contained in a soft gelatin capsule characterised in that the capsule comprises gelatin extracted by an extraction process comprising acid pre-treatment of a collagen source. One advantage of the present invention over a soft to gelatin capsule containing the same formulation but comprising gelatin extracted by an extraction process comprising alkali pre-treatment of the collagen source is that the present invention does not harden significantly over time and thus has a longer shelf life.
    Type: Application
    Filed: November 14, 2016
    Publication date: March 2, 2017
    Applicant: Chrysalis Pharma AG
    Inventors: Jean-Pierre SACHETTO, Roly BUFTON, Thomas BUSER
  • Publication number: 20170035698
    Abstract: In a delayed release formulation comprising a core containing a drug and a delayed release coating for providing intestinal release, release of the drug in the colon is accelerated by including an isolation layer between the core and the delayed release coating. The delayed release coating comprises an inner layer and an outer layer. The outer layer comprises a pH dependently soluble polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a soluble polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said soluble polymeric material being selected from the group consisting of a polycarboxylic acid polymer that is at least partially neutralised, and a non-ionic polymer, provided that, where said soluble polymeric material is a non-ionic polymer, said inner layer comprises at least one additive selected from a buffer agent and a base.
    Type: Application
    Filed: September 16, 2016
    Publication date: February 9, 2017
    Applicant: Tillotts Pharma AG
    Inventors: Felipe Josè OLIVEIRA VARUM, Roberto Carlos BRAVO GONZÁLEZ, Thomas BUSER, Abdul Waseh BASIT, Ana Cristina FREIRE
  • Publication number: 20160250232
    Abstract: In a delayed release formulation comprising a core containing a drug and a delayed release coating for providing intestinal release, release of the drug in the colon is accelerated by including an isolation layer between the core and the delayed release coating. The delayed release coating comprises an inner layer and an outer layer. The outer layer comprises a pH dependently soluble polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a soluble polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said soluble polymeric material being selected from the group consisting of a polycarboxylic acid polymer that is at least partially neutralised, and a non-ionic polymer, provided that, where said soluble polymeric material is a non-ionic polymer, said inner layer comprises at least one additive selected from a buffer agent and a base.
    Type: Application
    Filed: October 29, 2013
    Publication date: September 1, 2016
    Applicant: TILLOTTS PHARMA AG
    Inventors: Felipe Jose Oliveira VARUM, Roberto Carlos BRAVO GONZALEZ, Thomas BUSER, Abdul Waseh BASIT, Ana Cristina FREIRE
  • Patent number: 9364440
    Abstract: Delayed release of a drug to the colon is achieved from a delayed release formulation comprising a core and a coating for the core. The core comprises a drug and the coating comprises an outer layer and at least one layer between the core and the outer layer selected from the group consisting of an isolation layer and an inner layer. The outer layer comprises a mixture of a first polymeric material which is susceptible to attack by colonic bacteria, and a second polymeric material which has a pH threshold at about pH 5 or above. The inner layer comprises a third polymeric material which is soluble in intestinal fluid or gastrointestinal fluid, said third polymeric material being selected from an at least partially neutralised polycarboxylic acid and a non-ionic polymer. In embodiments in which the third polymeric material is a non-ionic polymer, the inner layer comprises at least one of a buffer agent and a base.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: June 14, 2016
    Assignee: TILLOTTS PHARMA AG
    Inventors: Roberto Carlos Bravo Gonzalez, Thomas Buser, Frederic Jean-Claude Goutte, Abdul Waseh Basit, Felipe Jose Oliveira Varum, Ana Cristina Freire
  • Patent number: 9132112
    Abstract: A pharmaceutical formulation comprising at least one omega-3 polyunsaturated fatty acid in free acid form or a pharmacologically acceptable derivative thereof is contained in a soft gelatin capsule characterized in that the capsule comprises gelatin extracted by an extraction process comprising acid pre-treatment of a collagen source. One advantage of the present invention over a soft gelatin capsule containing the same formulation but comprising gelatin extracted by an extraction process comprising alkali pre-treatment of the collagen source is that the present invention does not harden significantly over time and thus has a longer shelf life.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: September 15, 2015
    Assignee: CHYSALIS PHARMA AG
    Inventors: Jean-Pierre Sachetto, Roly Bufton, Thomas Buser
  • Publication number: 20150238430
    Abstract: A pharmaceutical formulation comprising at least one omega-3 polyunsaturated fatty acid in free acid form or a pharmacologically acceptable derivative thereof is contained in a soft gelatin capsule characterised in that the capsule comprises gelatin extracted by an extraction process comprising acid pre-treatment of a collagen source. One advantage of the present invention over a soft gelatin capsule containing the same formulation but comprising gelatin extracted by an extraction process comprising alkali pre-treatment of the collagen source is that the present invention does not harden significantly over time and thus has a longer shelf life.
    Type: Application
    Filed: April 29, 2015
    Publication date: August 27, 2015
    Applicant: Chrysalis Pharma AG
    Inventors: Jean-Pierre SACHETTO, Roly BUFTON, Thomas BUSER