Patents by Inventor Zebunnissa Ramtoola

Zebunnissa Ramtoola 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: 9271942
    Abstract: A method of producing microcapsules of the type having a core and a coating encapsulating the core comprises the steps of providing a core-forming fluid stream and a coating-forming fluid stream, providing a two spray nozzle arrangement having a core nozzle disposed concentrically about a second nozzle, spraying the core-forming fluid stream from the core nozzle and the coat-forming fluid stream from the concentric nozzle to produce microcapsules, and solidifying the microcapsules upon formation in a suitable gas. Spray drying or spray chilling may be employed as the means of solidifying the microcapsules. Microcapsules having a core and a solid coat are also described.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: March 1, 2016
    Assignee: ROYAL COLLEGE OF SURGEONS IN IRELAND
    Inventor: Zebunnissa Ramtoola
  • Patent number: 8828431
    Abstract: The invention relates to a solid oral dosage form comprising a pharmaceutically active ingredient in combination with an enhancer which enhances the bioavailability and/or the absorption of the active ingredient. Accordingly, a solid oral dosage form comprises a drug and an enhancer wherein the enhancer is a medium chain fatty acid ester, ether or salt or a derivative of a medium chain fatty acid, which is, preferably, solid at room temperature and which has a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is controlled release dosage form such as a delayed release dosage form.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: September 9, 2014
    Assignee: Merrion Research III Limited
    Inventors: Kenneth Iain Cumming, Zebunnissa Ramtoola
  • Patent number: 8323689
    Abstract: The invention relates to a solid oral dosage form comprising a pharmaceutically active ingredient in combination with an enhancer which enhances the bioavailability and/or the absorption of the active ingredient. Accordingly, a solid oral dosage form comprises a drug and an enhancer wherein the enhancer is a medium chain fatty acid ester, ether or salt or a derivative of a medium chain fatty acid, which is, preferably, solid at room temperature and which has a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is controlled release dosage form such as a delayed release dosage form.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: December 4, 2012
    Assignee: Merrion Research III Limited
    Inventors: Kenneth I. Cumming, Zebunnissa Ramtoola
  • Patent number: 8323690
    Abstract: The invention relates to a solid oral dosage form comprising a pharmaceutically active ingredient in combination with an enhancer which enhances the bioavailability and/or the absorption of the active ingredient. Accordingly, a solid oral dosage form comprises a drug and an enhancer wherein the enhancer is a medium chain fatty acid ester, ether or salt or a derivative of a medium chain fatty acid, which is, preferably, solid at room temperature and which has a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is controlled release dosage form such as a delayed release dosage form.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: December 4, 2012
    Assignee: Merrion Research III Limited
    Inventors: Kenneth I. Cumming, Zebunnissa Ramtoola
  • Patent number: 8053429
    Abstract: The invention relates to a solid oral dosage form comprising a pharmaceutically active ingredient in combination with an enhancer which enhances the bioavailability and/or the absorption of the active ingredient. Accordingly, a solid oral dosage form comprises a drug and an enhancer wherein the enhancer is a medium chain fatty acid ester, ether or salt or a derivative of a medium chain fatty acid, which is, preferably, solid at room temperature and which has a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is controlled release dosage form such as a delayed release dosage form.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: November 8, 2011
    Assignee: Merrion Research III Limited
    Inventors: Kenneth I. Cumming, Zebunnissa Ramtoola
  • Publication number: 20110212180
    Abstract: A method of producing microcapsules of the type having a core and a coating encapsulating the core comprises the steps of providing a core-forming fluid stream and a coating-forming fluid stream, providing a two spray nozzle arrangement having a core nozzle disposed concentrically about a second nozzle, spraying the core-forming fluid stream from the core nozzle and the coat-forming fluid stream from the concentric nozzle to produce microcapsules, and solidifying the microcapsules upon formation in a suitable gas. Spray drying or spray chilling may be employed as the means of solidifying the microcapsules. Microcapsules having a core and a solid coat are also described.
    Type: Application
    Filed: November 7, 2007
    Publication date: September 1, 2011
    Applicant: ROYAL COLLEGE OF SURGEONS IN IRELAND
    Inventor: Zebunnissa Ramtoola
  • Publication number: 20100209499
    Abstract: The invention relates to a solid oral dosage form comprising a pharmaceutically active ingredient in combination with an enhancer which enhances the bioavailability and/or the absorption of the active ingredient. Accordingly, a solid oral dosage form comprises a drug and an enhancer wherein the enhancer is a medium chain fatty acid ester, ether or salt or a derivative of a medium chain fatty acid, which is, preferably, solid at room temperature and which has a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is controlled release dosage form such as a delayed release dosage form.
    Type: Application
    Filed: April 27, 2010
    Publication date: August 19, 2010
    Inventors: Kenneth I. Cumming, Zebunnissa Ramtoola
  • Publication number: 20100074948
    Abstract: A method of producing a fast-melt tablet comprises the steps of forming a mixture of components, the mixture comprising at least one fast dissolving sugar alcohol, at least one disintegrant or osmotic agent, and at least one an active component, blending the mixture for a period of time, and directly compressing the blended mixture at a compression force of typically between 5 and 2O kN to form the fast-melt tablet. The process of the invention does not involve any granulation step, thereby making the process more energy efficient and cost effective. The fast dissolving sugar alcohol is selected from the group comprising: mannitol; sorbitol; erythritol; xylitol; lactose; dextrose; and sucrose, and comprises at least 50%, preferably at least 60%, and more preferably at least 70%, of the tablet (w/w). The active component is suitably provided in the form of microparticles or microcapsules having an average diameter of less than 125 microns.
    Type: Application
    Filed: April 3, 2008
    Publication date: March 25, 2010
    Applicant: Royal College of Surgeons in Ireland
    Inventors: Zebunnissa Ramtoola, Ritesh Pabari, John Kelly
  • Patent number: 7658938
    Abstract: The invention relates to a solid oral dosage form comprising a pharmaceutically active ingredient in combination with an enhancer which enhances the bioavailability and/or the absorption of the active ingredient. Accordingly, a solid oral dosage form comprises a drug and an enhancer wherein the enhancer is a medium chain fatty acid ester, ether or salt or a derivative of a medium chain fatty acid, which is, preferably, solid at room temperature and which has a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is controlled release dosage form such as a delayed release dosage form.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: February 9, 2010
    Assignee: Merrion Reasearch III Limited
    Inventors: Kenneth Iain Cumming, Zebunnissa Ramtoola
  • Publication number: 20100028421
    Abstract: The invention relates to a solid oral dosage form comprising a pharmaceutically active ingredient in combination with an enhancer which enhances the bioavailability and/or the absorption of the active ingredient. Accordingly, a solid oral dosage form comprises a drug and an enhancer wherein the enhancer is a medium chain fatty acid ester, ether or salt or a derivative of a medium chain fatty acid, which is, preferably, solid at room temperature and which has a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is controlled release dosage form such as a delayed release dosage form.
    Type: Application
    Filed: September 3, 2009
    Publication date: February 4, 2010
    Inventors: Kenneth I. Cumming, Zebunnissa Ramtoola
  • Publication number: 20080275001
    Abstract: The invention relates to a solid oral dosage form comprising a pharmaceutically active ingredient in combination with an enhancer which enhances the bioavailability and/or the absorption of the active ingredient. Accordingly, a solid oral dosage form comprises a drug and an enhancer wherein the enhancer is a medium chain fatty acid ester, ether or salt or a derivative of a medium chain fatty acid, which is, preferably, solid at room temperature and which has a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is controlled release dosage form such as a delayed release dosage form.
    Type: Application
    Filed: July 14, 2008
    Publication date: November 6, 2008
    Inventors: Kenneth I. Cumming, Zebunnissa Ramtoola
  • Publication number: 20070196464
    Abstract: The invention relates to a pharmaceutical composition and oral dosage forms comprising a bisphosphonate in combination with an enhancer to promote absorption of the bisphosphonate at the GIT cell lining. The enhancer is a medium chain fatty acid or a medium chain fatty acid derivative having a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is a controlled release dosage form such as a delayed release dosage form.
    Type: Application
    Filed: April 7, 2006
    Publication date: August 23, 2007
    Applicant: Merrion Research I Limited
    Inventors: Kenneth Cumming, Zebunnissa Ramtoola, Thomas Leonard
  • Publication number: 20070148228
    Abstract: The invention relates to a pharmaceutical composition and oral dosage forms comprising an HDAC inhibitor in combination with an enhancer to promote absorption of the HDAC inhibitor at the GIT cell lining. The enhancer is a medium chain fatty acid or a medium chain fatty acid derivative having a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is a controlled release dosage form such as a delayed release dosage form.
    Type: Application
    Filed: June 9, 2006
    Publication date: June 28, 2007
    Applicant: Merrion Research I Limited
    Inventors: Kenneth Cumming, Zebunnissa Ramtoola, Thomas Leonard
  • Publication number: 20040180086
    Abstract: Gastro-retentive dosage forms for prolonged delivery of levodopa and carbidopalevodopa combinations are described. The dosage forms comprise a tablet containing the active ingredient and a gas-generating agent sealed within an expandable, hydrophilic, water-permeable and substantially gas-impermeable membrane. Upon contact with gastric fluid, the membrane expands as a result of the release of gas from the gas-generating agent in the tablet. The expanded membrane is retained in the stomach for a prolonged period of time up to 24 hours or more during which period the active ingredient is released from the tablet providing delivery of levodopa to the site of optimum absorption in the upper small intestine.
    Type: Application
    Filed: October 10, 2003
    Publication date: September 16, 2004
    Inventors: Zebunnissa Ramtoola, Kenneth I. Cumming, Mary L. Martin
  • Publication number: 20030091623
    Abstract: The invention relates to a solid oral dosage form comprising a pharmaceutically active ingredient in combination with an enhancer which enhances the bioavailability and/or the absorption of the active ingredient. Accordingly, a solid oral dosage form comprises a drug and an enhancer wherein the enhancer is a medium chain fatty acid ester, ether or salt or a derivative of a medium chain fatty acid, which is, preferably, solid at room temperature and which has a carbon chain length of from 6 to 20 carbon atoms. Preferably, the solid oral dosage form is controlled release dosage form such as a delayed release dosage form.
    Type: Application
    Filed: February 22, 2000
    Publication date: May 15, 2003
    Inventors: Kenneth Iain Cumming, Zebunnissa Ramtoola