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).

  • Use of low molecular weight amino alcohols in opthalmic compositions
    Publication number: 20020106304
    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: October 22, 2001
    Publication date: August 8, 2002
    Inventor: Bahram Asgharian
  • Ophthalmic compositions containing galactomannan polymers and borate
    Patent number: 6403609
    Abstract: The present invention is directed to ophthalmic compositions containing a gelling amount of a combination of galactomannan polysaccharides and borates. The compositions gel or partially gel upon administration to the eye. The present invention also discloses methods of topical ophthalmic administration of the compositions of the eye.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: June 11, 2002
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Bahram Asgharian
  • Alkyl trypsin compositions and methods of use in contact lens cleaning and disinfecting systems
    Patent number: 6358897
    Abstract: Improved stability, liquid enzyme compositions containing an alkylated trypsin and methods involving the combined use of these compositions with an aqueous composition are disclosed for the cleaning or simultaneous cleaning and disinfecting of contact lens. Methods for a daily use regimen are also disclosed.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: March 19, 2002
    Assignee: Alcon Laboratories, Inc.
    Inventors: Bor-Shyue Hong, Bahram Asgharian, Ronald P. Quintana
  • Solutions for treating contact lenses
    Publication number: 20010046973
    Abstract: Contact lens care compositions for the treatment of hard contact lenses are disclosed. The compositions are useful for rinsing, cleaning, disinfecting and storing of hard contact lenses. The compositions contain an unique gelling system involving galactomannan polysaccharides and borates to allow for the conditioning of the lens when it is reinserted in the eye of the user. Methods of using these compositions are also disclosed.
    Type: Application
    Filed: June 18, 2001
    Publication date: November 29, 2001
    Inventor: Bahram Asgharian
  • Use of low molecular weight amino alcohols in ophthalmic compositions
    Patent number: 6319464
    Abstract: The use of low molecular weight amino alcohols in ophthalmic boric solution is described herein. These compounds have been found to enhance the efficacy of antimicrobial preservatives. Particularly preferred amino alcohols are 2-amino-2-methyl-1-propanol (AMP), 2-dimethylamino-2-methyl-1-propanediol (DMAMP), 2-amino-2-ethylpropanol (AMP), 2-amino-2-methyl-1,3-propanediol (AMPD), and 2-amino-1-butanol (AB). The ophthalmic compositions further optionally comprise a borate/polyol buffer system and an alkylamine.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: November 20, 2001
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Bahram Asgharian
  • Conditioning solutions for contact lens care
    Patent number: 6316506
    Abstract: Contact lens care compositions for the treatment of hard contact lenses arc disclosed. The compositions are useful for rinsing, cleaning, disinfecting and storing of hard contact lenses. The compositions contain an unique gelling system involving galactomannan polysaccharides and borates to allow for the conditioning of the lens when it is reinserted in the eye of the user. Methods of using these compositions are also disclosed.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: November 13, 2001
    Assignee: Alcon Laboratories, Inc.
    Inventor: Bahram Asgharian
  • Conditioning solutions for hard contact lens care
    Publication number: 20010001789
    Abstract: Contact lens care compositions for the treatment of hard contact lenses are disclosed. The compositions are useful for rinsing, cleaning, disinfecting and storing of hard contact lenses. The compositions contain an unique gelling system involving galactomannan polysaccharides and borates to allow for the conditioning of the lens when it is reinserted in the eye of the user. Methods of using these compositions are also disclosed.
    Type: Application
    Filed: January 18, 2001
    Publication date: May 24, 2001
    Inventor: Bahram Asgharian
  • Multi-purpose compositions containing an alkyl-trypsin and methods of use in contact lens cleaning and disinfecting
    Patent number: 6228323
    Abstract: Two-compartment bottle assemblies useful in preparing multi-purpose compositions containing an Al-trypsin and disinfectant, methods of preparing these compositions and methods involving the use of these compositions are disclosed for cleaning and disinfecting of contact lenses.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: May 8, 2001
    Assignee: Alcon Laboratories, Inc.
    Inventors: Bahram Asgharian, Bor-Shyue Hong
  • Liquid enzyme compositions and methods of use in contact lens cleaning and disinfecting systems
    Patent number: 6214596
    Abstract: Stable liquid enzyme compositions containing an ophthalmically acceptable enzyme and methods involving the combined use of these compositions with an antimicrobial agent are disclosed for the simultaneous cleaning and disinfecting of contact lens. Methods for a daily use regimen are also disclosed.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: April 10, 2001
    Assignee: Alcon Laboratories, Inc.
    Inventors: Bahram Asgharian, Bor-Shyue Hong
  • Liquid enzyme compositions and methods of use in contact lens cleaning and disinfecting systems
    Patent number: 6184189
    Abstract: Stable liquid enzyme compositions containing an ophthalmically acceptable enzyme and methods involving the combined use of these compositions with a polymeric antimicrobial agent are disclosed for the simultaneous cleaning and disinfecting of contact lenses. Methods for a daily use regimen are also disclosed.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: February 6, 2001
    Assignee: Alcon Laboratories, Inc.
    Inventors: Bahram Asgharian, Bor-Shyue Hong
  • Methods of sterilizing polymers
    Patent number: 6139794
    Abstract: Methods of heat sterilizing polymers are disclosed. The methods involve the preparation of a polymer suspension in an water-miscible organic liquid and subsequent application of moderate heat for a period of time sufficient to sterilize the polymer.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: October 31, 2000
    Assignee: Alcon Laboratories, Inc.
    Inventors: Bahram Asgharian, Alok K. Kulshreshtha
  • Alkyl trypsin compositions and methods of use in contact lens cleaning and disinfecting systems
    Patent number: 6139646
    Abstract: Improved stability, liquid enzyme compositions containing an alkylated trypsin and methods involving the combined use of these compositions with an aqueous composition are disclosed for the cleaning or simultaneous cleaning and disinfecting of contact lens. Methods for a daily use regimen are also disclosed.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: October 31, 2000
    Assignee: Alcon Laboratories, Inc.
    Inventors: Bahram Asgharian, Bor-Shyue Hong, Ronald P. Quintana
  • Liquid enzyme compositions containing mixed polyols and methods of use
    Patent number: 6069120
    Abstract: Compositions containing a stable, liquid, ophthalmically acceptable enzyme and methods involving the combined use of these compositions with a polymeric antimicrobial agent are disclosed for the simultaneous cleaning and disinfecting of contact lens. Methods for a daily use regimen are also disclosed.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: May 30, 2000
    Assignee: Alcon Laboratories, Inc.
    Inventors: Bahram Asgharian, Bor-Shyue Hong
  • Stable liquid enzyme compositions and methods of use in contact lens cleaning and disinfecting systems
    Patent number: 5948738
    Abstract: Stable liquid enzyme compositions containing an ophthalmically acceptable enzyme and methods involving the combined use of these compositions with a polymeric antimicrobial agent are disclosed for the simultaneous cleaning and disinfecting of contact lens. Methods for a daily use regimen are also disclosed.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: September 7, 1999
    Assignee: Alcon Laboratories, Inc.
    Inventors: Masood A. Chowhan, Ronald P. Quintana, Bahram Asgharian, Bor-Shyue Hong, Thierry Bilbault, Ruth A. Rosenthal
  • Stable liquid enzyme compositions and methods of use in contact lens cleaning and disinfecting systems
    Patent number: 5939369
    Abstract: Stable liquid enzyme compositions containing an ophthalmically acceptable enzyme and methods involving the combined use of these compositions with a polymeric antimicrobial agent are disclosed for the simultaneous cleaning and disinfecting of contact lens. Methods for a daily use regimen are also disclosed.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: August 17, 1999
    Assignee: Alcon Laboratories, Inc.
    Inventors: Masood A. Chowhan, Ronald P. Quintana, Bahram Asgharian, Bor-Shyue Hong, Thierry Bilbault, Ruth A. Rosenthal
  • Liquid enzyme compositions containing aromatic acid derivatives and methods of use
    Patent number: 5919313
    Abstract: Compositions containing a stable, liquid, ophthalmically acceptable enzyme and methods involving the combined use of these compositions with a polymeric antimicrobial agent are disclosed for the simultaneous cleaning and disinfecting of contact lens. Methods for a daily use regimen are also disclosed.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: July 6, 1999
    Assignee: Alcon Laboratories, Inc.
    Inventors: Bahram Asgharian, Ronald P. Quintana, Bor-Shyue Hong
  • Use of diamines to disinfect and clean contact lenses and preserve ophthalmic compositions
    Patent number: 5900213
    Abstract: N,N-dialkyl and N'-alkylethylene diamines of the formula: ##STR1## wherein R, R.sup.1 and R.sup.2 are as described in the specification. The compounds are useful in disinfecting and cleaning contact lenses and preserving ophthalmic products.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: May 4, 1999
    Assignee: Alcon Laboratories, Inc.
    Inventors: Nissanke L. Dassanayake, Ronald L. Schlitzer, Joonsup Park, Bahram Asgharian
  • Peg-modified proteases and methods of use in contact lens cleaning
    Patent number: 5868868
    Abstract: The invention discloses PEG-modified proteases, compositions containing these modified enzymes, and methods for using them to clean contact lenses. The methods of the present invention are also directed to the simultaneous cleaning and disinfecting of contact lenses, when compositions of the present invention are combined with a suitable disinfectant.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: February 9, 1999
    Assignee: Alcon Laboratories, Inc.
    Inventors: Joonsup Park, Ronald P. Quintana, Bor-shyue Hong, Bahram Asgharian
  • Use of low molecular weight amino acids in ophthalmic compositions
    Patent number: 5741817
    Abstract: The use of glycine and other low molecular weight amino acids in ophthalmic compositions (e.g., preserved saline solutions) is described. These compounds have been found to enhance the efficacy of antimicrobial preservatives. The compounds also act as chelating agents, buffers and tonicity agents.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: April 21, 1998
    Inventors: Masood Chowhan, Bahram Asgharian, Paul Stach
  • Stable liquid enzyme compositions and methods of use in contact lens cleaning and disinfecting systems
    Patent number: 5723421
    Abstract: Compositions containing a stable, liquid, ophthalmically acceptable enzyme and methods involving the combined use of these compositions with a polymeric antimicrobial agent are disclosed for the simultaneous cleaning and disinfecting of contact lens. Methods for a daily use regimen are also disclosed.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: March 3, 1998
    Assignee: Alcon Laboratories, Inc.
    Inventors: Masood A. Chowhan, Ronald P. Quintana, Bahram Asgharian, Bor-Shyue Hong, Thierry Bilbault, Ruth Ann Rosenthal