Patents by Inventor John W. Shell

John W. Shell 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).

  • Device for administering solid drug particles to an eye
    Patent number: 4173226
    Abstract: An ophthalmic bioerodible dosage form for ophthalmic drugs is disclosed. The dosage form comprises particles of 10 to 300 microns made of drug dispersed within a drug release rate controlling material which bioerodes in the environment of the eye.
    Type: Grant
    Filed: July 7, 1978
    Date of Patent: November 6, 1979
    Assignee: Alza Corporation
    Inventor: John W. Shell
  • Ocular system made of bioerodible esters having linear ether
    Patent number: 4115544
    Abstract: An ophthalmological bioerodible dosage form for ophthalmic drugs is disclosed. The dosage form comprises particles of 10 to 300 microns made of drug dispersed within a drug release rate controlling material which bioerodes in the environment of the eye.
    Type: Grant
    Filed: November 10, 1977
    Date of Patent: September 19, 1978
    Assignee: Alza Corporation
    Inventor: John W. Shell
  • Ophthalmological bioerodible drug dispensing formulation
    Patent number: 4001388
    Abstract: An ophthalmological bioerodible dosage form for ophthalmic drugs is disclosed. The dosage form comprises particles 10 to 300 microns made of drug dispersed within a drug release rate controlling material which bioerodes in the environment of the eye.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: January 4, 1977
    Assignee: Alza Corporation
    Inventor: John W. Shell
  • Ocular insert
    Patent number: 3995635
    Abstract: A drug-dispensing ocular insert containing a drug and suited for application to the eyeball to dispense said drug to the eye over a prolonged period of time, includes, for permitting facile insertion into and comfortable retention within the eye, and more importantly for preventing the accidental expulsion of the insert therefrom, first detent means adapted for insertion into the cul-de-sac of the conjunctiva between the sclera of the eyeball and the upper eyelid, and second, conjoint detent means, cooperative with said first detent means, adapted for insertion into the cul-de-sac of the conjunctiva between the said sclera of the eyeball and the lower eyelid.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: December 7, 1976
    Assignee: Alza Corporation
    Inventors: Takeru Higuchi, Anwar A. Hussain, John W. Shell
  • Bioerodible ocular device
    Patent number: 3993071
    Abstract: An ocular insert for the continuous controlled administration of a predetermined therapeutically effective dosage of drug to the eye over a prolonged period of time. The device meters the flow of drug by means of a drug release rate controlling material. The insert bioerodes in the environment of the eye concurrently with the dispensing or at a point in time after the dispensing of the therapeutically desired amount of drug.
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: November 23, 1976
    Assignee: Alza Corporation
    Inventors: Takeru Higuchi, Anwar A. Hussain, John W. Shell
  • Bioerodible ocular device
    Patent number: 3986510
    Abstract: An ocular insert for the continuous controlled administration of a predetermined therapeutically effective dosage of drug to the eye over a prolonged period of time. The device meters the flow of drug by means of a drug release rate controlling material. The insert bioerodes in the environment of the eye concurrently with the dispensing or at a point in time after the dispensing of the therapeutically desired amount of drug.
    Type: Grant
    Filed: August 1, 1975
    Date of Patent: October 19, 1976
    Assignee: Alza Corporation
    Inventors: Takeru Higuchi, Anwar A. Hussain, John W. Shell
  • Bioerodible ocular device
    Patent number: 3981303
    Abstract: An ocular insert for the continuous controlled administration of a predetermined therapeutically effective dosage of drug to the eye over a prolonged period of time. The device meters the flow of drug by means of a drug release rate controlling material. The insert bioerodes in the environment of the eye concurrently with the dispensing or at a point in time after the dispensing of the therapeutically desired amount of drug.
    Type: Grant
    Filed: July 31, 1975
    Date of Patent: September 21, 1976
    Assignee: Alza Corporation
    Inventors: Takeru Higuchi, Anwar A. Hussain, John W. Shell
  • Bioerodible ocular device
    Patent number: 3960150
    Abstract: An ocular insert for the continuous controlled administration of a predetermined therapeutically effective dosage of drug to the eye over a prolonged period of time. The device meters the flow of drug by means of a drug release rate controlling material. The insert bioerodes in the environment of the eye concurrently with the dispensing or at a point in time after the dispensing of the therapeutically desired amount of drug.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: June 1, 1976
    Assignee: Alza Corporation
    Inventors: Anwar A. Hussain, Takeru Higuchi, John W. Shell