Patents by Inventor Roberto Carlos Bravo Gonzalez

Roberto Carlos Bravo Gonzalez 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: 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: 10179105
    Abstract: The present invention relates to microgel particles containing nanotubes loaded with an active pharmaceutical ingredient, a process for their preparation and a pharmaceutical composition comprising the same.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: January 15, 2019
    Assignee: Tillotts Pharma AG
    Inventors: Jan Kendall De Kruif, Carla Garofalo, Gisela Ledergerber, Martin Kuentz, Roberto Carlos Bravo Gonzaléz, Felipe José Oliveira Varum
  • Publication number: 20180125784
    Abstract: The present invention relates to a delayed release pharmaceutical formulation for delivering an active agent to the intestine, a method of preparing such formulation and the use of such formulation in the treatment of gastrointestinal disorders.
    Type: Application
    Filed: January 9, 2018
    Publication date: May 10, 2018
    Applicant: Tillotts Pharma AG
    Inventors: Daniel Preisig, Maxim Puchkov, Joerg Huwyler, Felipe José Oliveira Varum, Roberto Carlos Bravo Gonzalez
  • Publication number: 20180049980
    Abstract: The present invention relates to microgel particles, a process for their preparation and a pharmaceutical composition comprising the same.
    Type: Application
    Filed: March 21, 2016
    Publication date: February 22, 2018
    Applicant: Tillotts Pharma AG
    Inventors: Jan Kendall DE KRUIF, Carla GAROFALO, Gisela LEDERGERBER, Martin KUENTZ, Roberto Carlos BRAVO GONZALÉZ, Felipe José OLIVEIRA VARUM
  • Patent number: 9895314
    Abstract: The present invention relates to a delayed release pharmaceutical formulation for delivering an active agent to the intestine, a method of preparing such formulation and the use of such formulation in the treatment of gastrointestinal disorders, wherein the formulation includes at least one active agent associated with porous, functionalized calcium carbonate carrier particles that are surrounded by a material for colon targeting.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: February 20, 2018
    Assignee: Tillotts Pharma AG
    Inventors: Daniel Preisig, Maxim Puchkov, Joerg Huwyler, Felipe José Oliveira Varum, Roberto Carlos Bravo Gonzalez
  • 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: 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: 20160287521
    Abstract: The present invention relates to a multi-particulate drug delivery system, a process for its preparation and capsules being filled with such system.
    Type: Application
    Filed: November 13, 2014
    Publication date: October 6, 2016
    Applicant: Tillotts Pharma AG
    Inventors: Roberto Carlos BRAVO GONZALÉZ, Felipe José Oliveira VARUM, Jan Kendall DE KRUIF, Martin KUENTZ
  • 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
  • Publication number: 20160235673
    Abstract: The present invention relates to a delayed release pharmaceutical formulation for delivering an active agent to the intestine, a method of preparing such formulation and the use of such formulation in the treatment of gastrointestinal disorders.
    Type: Application
    Filed: September 22, 2014
    Publication date: August 18, 2016
    Applicant: TILLOTTS PHARMA AG
    Inventors: Daniel PREISIG, Maxim PUCHKOV, Joerg HUWYLER, Felipe José OLIVEIRA VARUM, Roberto Carlos BRAVO GONZALEZ
  • 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
  • Publication number: 20150132380
    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: Application
    Filed: April 29, 2013
    Publication date: May 14, 2015
    Applicant: TILLOTTS PHARMA AG
    Inventors: Roberto Carlos Bravo Gonzalez, Thomas Buser, Frederic Jean-Claude Goutte, Abdul Waseh Basit, Felipe Jose Oliveira Varum, Ana Cristina Freire
  • Publication number: 20150125525
    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 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: Application
    Filed: April 29, 2013
    Publication date: May 7, 2015
    Applicant: TILLOTTS PHARMA AG
    Inventors: Roberto Carlos Bravo Gonzalez, Thomas Buser, Frederic Goutte, Abdul Waseh Basit, Felipe Jose, Oliveira Varum, Ana Cristina Freire
  • Publication number: 20140056980
    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: February 27, 2014
    Applicant: Tillotts Pharma AG
    Inventors: Felipe José OLIVEIRA VARUM, Roberto Carlos Bravo González, Thomas Buser