Patents by Inventor Bahram Asgharian

Bahram Asgharian 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: 20170216228
    Abstract: The present invention is directed to a pharmaceutical submicron suspension and a method of forming the submicron suspension. The submicron suspension is useful for delivery of relatively hydrophobic and/or low solubility therapeutic agent. The submicron suspension and method of forming the submicron suspension typically employ a polymeric material that aids in preventing aggregation of the therapeutic agent.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 3, 2017
    Inventors: Bahram Asgharian, Ernesto J. Castillo, Masood A. Chowhan
  • Patent number: 9662398
    Abstract: The present invention generally relates to suspension compositions having a carboxyvinyl polymer such as a carbomer, a galactomannan such as guar, and a borate compound. A sparingly soluble particulate compound such as nepafenac is also included in the compositions. The sparingly soluble particulate compound has a small particle size to enhance bioavailability of the compound.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: May 30, 2017
    Assignee: Alcon Research, Ltd.
    Inventors: Masood A. Chowhan, Malay Ghosh, Bahram Asgharian, Wesley Weshin Han
  • Publication number: 20170020818
    Abstract: The present invention generally relates to suspension compositions having a carboxyvinyl polymer such as a carbomer, a galactomannan such as guar, and a borate compound. A sparingly soluble particulate compound such as nepafenac is also included in the compositions. The sparingly soluble particulate compound has a small particle size to enhance bioavailability of the compound.
    Type: Application
    Filed: October 4, 2016
    Publication date: January 26, 2017
    Inventors: Masood A. Chowhan, Malay Ghosh, Bahram Asgharian, Wesley Weshin Han
  • Patent number: 9457091
    Abstract: The present invention generally relates to suspension compositions having a carboxyvinyl polymer such as a carbomer, a galactomannan such as guar, and a borate compound. A sparingly soluble particulate compound such as nepafenac is also included in the compositions. The sparingly soluble particulate compound has a small particle size to enhance bioavailability of the compound.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: October 4, 2016
    Assignee: Alcon Research, Ltd.
    Inventors: Masood A. Chowhan, Malay Ghosh, Bahram Asgharian, Wesley Weshin Han
  • Publication number: 20150072011
    Abstract: The present invention generally relates to suspension compositions having a carboxyvinyl polymer such as a carbomer, a galactomannan such as guar, and a borate compound. A sparingly soluble particulate compound such as nepafenac is also included in the compositions. The sparingly soluble particulate compound has a small particle size to enhance bioavailability of the compound.
    Type: Application
    Filed: November 12, 2014
    Publication date: March 12, 2015
    Inventors: Masood A. CHOWHAN, Malay GHOSH, Bahram ASGHARIAN, Wesley Weshin HAN
  • Patent number: 8921337
    Abstract: The present invention generally relates to suspension compositions having a carboxyvinyl polymer such as a carbomer, a galactomannan such as guar, and a borate compound. A sparingly soluble particulate compound such as nepafenac is also included in the compositions. The sparingly soluble particulate compound has a small particle size to enhance bioavailability of the compound.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: December 30, 2014
    Assignee: Alcon Research, Ltd.
    Inventors: Masood A. Chowhan, Malay Ghosh, Bahram Asgharian, Wesley Wehsin Han
  • Patent number: 8865776
    Abstract: The use of low molecular weight amino alcohols in ophthalmic compositions is described. These compounds have been found to enhance the efficacy of anti-microbial preservatives.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: October 21, 2014
    Assignee: Alcon Research, Ltd.
    Inventor: Bahram Asgharian
  • Publication number: 20140294970
    Abstract: The present invention is directed to a pharmaceutical submicron suspension and a method of forming the submicron suspension. The submicron suspension is useful for delivery of relatively hydrophobic and/or low solubility therapeutic agent. The submicron suspension and method of forming the submicron suspension typically employ a polymeric material that aids in preventing aggregation of the therapeutic agent.
    Type: Application
    Filed: June 11, 2014
    Publication date: October 2, 2014
    Inventors: Bahram Asgharian, Ernesto J. Castillo, Masood A. Chowhan
  • Publication number: 20140128478
    Abstract: Disclosed is a pharmaceutical composition comprising a water insoluble polymer matrix that comprises a bioerodable polyester polymer or a fatty acid based polyester polymer, or a mixture of both polymers, wherein the polymer matrix has a melting point of less than 60° C., and wherein the composition is liquid or paste at room temperature and is formulated to occlude a punctual channel in a subject and conforms to the shape of the canalicular or punctal channel.
    Type: Application
    Filed: January 15, 2014
    Publication date: May 8, 2014
    Applicant: Alcon Research, Ltd.
    Inventors: Bahram Asgharian, Masood A. Chowhan
  • Publication number: 20140056997
    Abstract: The use of low molecular weight amino alcohols in ophthalmic compositions is described. These compounds have been found to enhance the efficacy of anti-microbial preservatives.
    Type: Application
    Filed: September 18, 2013
    Publication date: February 27, 2014
    Inventor: Bahram Asgharian
  • Patent number: 8632809
    Abstract: Disclosed is a pharmaceutical composition comprising (a) a bioerodible water insoluble polymer matrix comprising a polyester polymer, wherein the polymer matrix has a melting point of less than 60° C. and (b) an active agent dispersed within the polymer matrix, wherein the composition is formulated to controllably release the active agent for a pre -determined period of time to a target site. Also disclosed are methods of treating a disease or condition with the disclosed compositions.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: January 21, 2014
    Assignee: Alcon Research, Ltd.
    Inventors: Bahram Asgharian, Masood A. Chowhan, Martin B. Wax
  • Patent number: 8563011
    Abstract: The use of low molecular weight amino alcohols in ophthalmic compositions is described. These compounds have been found to enhance the efficacy of anti-microbial preservatives.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: October 22, 2013
    Assignee: Alcon Research, Ltd.
    Inventor: Bahram Asgharian
  • Publication number: 20110135743
    Abstract: The present invention generally relates to suspension compositions having a carboxyvinyl polymer such as a carbomer, a galactomannan such as guar, and a borate compound. A sparingly soluble particulate compound such as nepafenac is also included in the compositions. The sparingly soluble particulate compound has a small particle size to enhance bioavailability of the compound.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 9, 2011
    Applicant: ALCON RESEARCH, LTD.
    Inventors: Masood A. Chowhan, Malay Ghosh, Bahram Asgharian, Wesley Wehsin Han
  • Publication number: 20100266664
    Abstract: Disclosed are ophthalmic drug-delivery devices, comprising a body having a proximal end and a distal end, wherein the body includes a styrene elastomer matrix and a drug in contact with the matrix. Also disclosed are methods of treating or preventing an eye disease in a subject, that involve contacting an eye of the subject with an ophthalmic drug delivery device comprising a body having a proximal end and a distal end, wherein the body comprises a styrene elastomer matrix and a drug in contact with the matrix, wherein release of the drug from the device occurs over time following contacting of the device with the eye of the subject.
    Type: Application
    Filed: May 7, 2010
    Publication date: October 21, 2010
    Applicant: ALCON RESEARCH, LTD.
    Inventors: Bahram Asgharian, Masood A. Chowhan
  • Publication number: 20100267664
    Abstract: Topical ophthalmic compositions that form a gel or partial gel upon application to the eye are described. The compositions are particularly useful as artificial tears and ocular lubricants, but may also be utilized for the topical delivery of pharmaceutically active compounds to the eye. The compositions contain a polysaccharide/borate gelling system. The polysaccharides that may be utilized contain cis-diol groups and have a structure that is predominately linear, with a slight degree of branching.
    Type: Application
    Filed: June 30, 2010
    Publication date: October 21, 2010
    Applicant: ALCON, INC.
    Inventor: Bahram Asgharian
  • Publication number: 20100099771
    Abstract: Ophthalmic compositions containing very low concentrations (e.g., 1 to 50 ppm) of cooling agents are described. The cooling agents are less volatile and less prone to causing ocular discomfort than agents previously utilized to obtain an ocular cooling effect, such as menthol. The cooling agents are preferably contained in a vehicle that forms a gel or partial gel upon application to the eye.
    Type: Application
    Filed: December 23, 2009
    Publication date: April 22, 2010
    Applicant: ALCON, INC.
    Inventors: Bahram Asgharian, David L. Meadows
  • Publication number: 20100076045
    Abstract: The present invention is directed to a pharmaceutical submicron suspension and a method of forming the submicron suspension. The submicron suspension is useful for delivery of relatively hydrophobic and/or low solubility therapeutic agent. The submicron suspension and method of forming the submicron suspension typically employ a polymeric material that aids in preventing aggregation of the therapeutic agent.
    Type: Application
    Filed: September 16, 2009
    Publication date: March 25, 2010
    Inventors: Ernesto J. Castillo, Bahram Asgharian, Masood A. Chowhan
  • Publication number: 20100021561
    Abstract: The use of borate/amino alcohol/zinc systems to enhance the antimicrobial activity of multi-dose pharmaceutical compositions is described. The compositions do not require a conventional anti-microbial preservative and therefore are referred to as being “self-preserved”. The compositions possess sufficient antimicrobial activity to satisfy the preservative efficacy requirements of the USP for aqueous ophthalmic compositions.
    Type: Application
    Filed: September 20, 2007
    Publication date: January 28, 2010
    Inventors: Masood A. Chowhan, David J. Keith, Bahram Asgharian
  • Publication number: 20090156693
    Abstract: Topical ophthalmic compositions that form a gel or partial gel upon application to the eye are described. The compositions are particularly useful as artificial tears and ocular lubricants, but may also be utilized for the topical delivery of pharmaceutically active compounds to the eye. The compositions contain a polysaccharide/borate gelling system. The polysaccharides that may be utilized contain cis-diol groups and have a structure that is predominately linear, with a slight degree of branching.
    Type: Application
    Filed: February 23, 2009
    Publication date: June 18, 2009
    Applicant: ALCON, INC.
    Inventor: Bahram Asgharian
  • Publication number: 20080145406
    Abstract: Disclosed are ophthalmic drug-delivery devices, comprising a body having a proximal end and a distal end, wherein the body includes a styrene elastomer matrix and a drug in contact with the matrix. Also disclosed are methods of treating or preventing an eye disease in a subject, that involve contacting an eye of the subject with an ophthalmic drug delivery device comprising a body having a proximal end and a distal end, wherein the body comprises a styrene elastomer matrix and a drug in contact with the matrix, wherein release of the drug from the device occurs over time following contacting of the device with the eye of the subject.
    Type: Application
    Filed: November 8, 2007
    Publication date: June 19, 2008
    Applicant: Alcon Manufacturing Ltd.
    Inventors: Bahram Asgharian, Masood A. Chowhan