Patents by Inventor Wesley W. Han

Wesley W. Han 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).

  • Topical ophthalmic carbonic anhydrase inhibitor formulations
    Patent number: 5620970
    Abstract: The present invention is directed to topical ophthalmic formulations of carbonic anhydrase inhibitors and polyethoxylated derivatives of castor oil. Methods for using the formulations for treating and controlling glaucoma and ocular hypertension are also disclosed.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 15, 1997
    Assignee: Alcon Laboratories, Inc.
    Inventors: Wesley W. Han, Thomas R. Dean, Steven H. Gerson, Yusuf Ali, Rajni Jani
  • (+) Suprofen esters and amides as opthalmic anti-inflammatory agents
    Patent number: 5013751
    Abstract: Disclosed are esters and amides of (+) suprofen, substantially free of the corresponding enantiomorp, (-) suprofen, having enhanced delivery characteristics on topical administration to the eye; also disclosed are pharmaceutical compositions comprising such (+) suprofen derivatives and methods of using them when indicated to achieve an anti-inflammatory effect on topical delivery to the eye.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: May 7, 1991
    Assignee: Alcon Laboratories, Inc.
    Inventors: Steven H. Gerson, Wesley W. Han
  • Method for enhancing solubility of trimethoprim with sodium sulfacetamide, and synergistic pharmaceutical compositions derived therefrom
    Patent number: 5008255
    Abstract: A method of preparing aqueous pharmaceutical compositions containing a synergistic combination of trimethoprim and sodium sulfacetamide is described. The method results in a significant improvement in the aqueous solubility of trimethoprim due to a favorable interaction between the trimethoprim and sodium sulfacetamide which is dependent on a mildly acidic pH.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: April 16, 1991
    Assignee: Alcon Laboratories, Inc.
    Inventors: John G. Edwards, Wesley W. Han, Yusuf Ali
  • Suprofen esters and amides as ophthalmic anti-inflammatory agents
    Patent number: 4988728
    Abstract: Disclosed are esters and amides of suprofen having enhanced delivery characteristics on topical administration to the eye; also disclosed are pharmaceutical compositions comprising such suprofen derivatives and methods of using them when indicated to achieve an anti-inflammatory effect on topical delivery to the eye.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: January 29, 1991
    Assignee: Alcon Laboratories, Inc.
    Inventors: Steven H. Gerson, Wesley W. Han
  • Sparingly soluble salts of cefamandole, and ophthalmic compositions containing same
    Patent number: 4737492
    Abstract: The hydrabamine and benzathine salts of cefamandole are useful in aqueous ophthalmic compositions which have good stability and shelf life.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: April 12, 1988
    Assignee: Alcon Laboratories, Inc.
    Inventors: Steven H. Gerson, Wesley W. Han
  • Fatty acid salts of betaxolol useful in the treatment of glaucoma
    Patent number: 4694022
    Abstract: Fatty acid salts of betaxolol, a cardioselective beta-blocker, and ophthalmic compositions containing these salts are described. These new salts have an aqueous solubility significantly less than that of betaxolol hydrochloride. This relatively poor aqueous solubility enables the salts to be slowly released from a suitable ophthalmic vehicle when placed in the aqueous environment of the eye. The salts also exhibit a significantly lower incidence of ocular irritation, as compared to ophthalmic solutions containing betaxolol hydrochloride.
    Type: Grant
    Filed: December 24, 1986
    Date of Patent: September 15, 1987
    Assignee: Alcon Laboratories, Inc.
    Inventors: Steven H. Gerson, Wesley W. Han
  • Nonirritating aqueous ophthalmic compositions comfort formulation for ocular therapeutic agents
    Patent number: 4559343
    Abstract: Xanthine derivatives are described which decrease the stinging associated with the application of ophthalmic acidic anti-inflammatory agents.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: December 17, 1985
    Assignee: Alcon Laboratories, Inc.
    Inventors: Wesley W. Han, Robert E. Roehrs