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).

  • 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
  • Patent number: 9012501
    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 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: Grant
    Filed: January 4, 2013
    Date of Patent: April 21, 2015
    Assignee: Chrysalis Pharma AG
    Inventors: Jean-Pierre Sachetto, Roly Bufton, Thomas Buser
  • Publication number: 20140228437
    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 22, 2014
    Publication date: August 14, 2014
    Applicant: Chrysalis Pharma AG
    Inventors: Jean-Pierre SACHETTO, Roly BUFTON, Thomas BUSER
  • 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
  • Publication number: 20130123362
    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: January 4, 2013
    Publication date: May 16, 2013
    Inventors: Jean-Pierre Sachetto, Roly Button, Thomas Buser
  • Patent number: 8383678
    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: January 5, 2011
    Date of Patent: February 26, 2013
    Assignee: Chrysalis Pharma AG
    Inventors: Jean-Pierre Sachetto, Roly Bufton, Thomas Buser
  • Patent number: 7960370
    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: February 7, 2005
    Date of Patent: June 14, 2011
    Inventors: Jean-Pierre Sachetto, Roly Bufton, Thomas Buser
  • Publication number: 20110097394
    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: January 5, 2011
    Publication date: April 28, 2011
    Inventors: Jean-Pierre Sachetto, Roly Bufton, Thomas Buser
  • Publication number: 20070269507
    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: February 7, 2005
    Publication date: November 22, 2007
    Applicant: Tillotts Pharma AG
    Inventors: Jean-Pierre Sachetto, Roly Bufton, Thomas Buser
  • Patent number: 6217897
    Abstract: A topical spreadable composition comprising 5-aminosalicylic acid (5-ASA) as active and monoolein is provided for treatment ulcers, inflammation and lesions of the oral cavity. The composition is spread over and adheres to the lesion, and is preferably prepared in a water free state. Examples of indications that can be treated are oral Crohn's Disease, apthous ulcers, orofacial granulomatosis, oral ulcers associated with Behet's disease and oral lichen planus.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: April 17, 2001
    Assignee: Tillotts Pharma AG
    Inventor: Thomas Buser
  • Patent number: 5948818
    Abstract: Inflammatory bowel disease, especially Crohn's disease and ulcerative colitis, is treated by administration of an oral dosage form, containing as an active principle an omega-3 polyunsaturated acid in free acid form or as a pharmaceutically acceptable salt thereof, which releases the acid in the ileum. Preferably the oral dosage form is a gelatine capsule coated with a poly(ethylacrylate-methylmethacrylate).
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: September 7, 1999
    Assignee: Tillotts Pharma AG
    Inventors: Thomas Buser, Emilio P. Camporesi
  • Patent number: 5792795
    Abstract: Inflammatory bowel disease, especially Crohn's disease and ulcerative colitis, is treated by administration of an oral dosage form, containing as an active principle an omega-3 polyunsaturated acid in free acid form or as a pharmaceutically acceptable salt thereof, which releases the acid in the ileum. Preferably the oral dosage form is a gelatine capsule coated with a poly(ethylacrylate-methylmethacrylate).
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: August 11, 1998
    Assignee: Tillotts Pharma AG
    Inventors: Thomas Buser, Emilio P. Camporesi
  • Patent number: D402865
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: December 22, 1998
    Inventor: Richard Thomas Buser