Ophthalmic product
Patent 5308624 Issued on May 3, 1994. Estimated Expiration Date: 
May 3, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 3, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesBioadhesive composition and method of treatment therewith Biodegradable ocular implants Process for the preparaton of dispersible colloidal systems of a substance in the form of nanocapsules Patent #: 5049322 InventorsAssigneeApplicationNo. 677531 filed on 03/29/1991US Classes:424/427, Ocular424/401, Cosmetic, antiperspirant, dentifrice424/428, Bioerrodable, resorbable, or dissolving424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)424/490, Coated (e.g., microcapsules)424/497, Containing solid synthetic polymers424/502, Contains waxes, higher fatty acids, higher fatty alcohols514/963Microcapsule-sustained or differential releaseExaminersPrimary: Page, Thurman K.Assistant: Spear, James M. Attorney, Agent or FirmForeign Patent References
International ClassA61K 009/51Foreign Application Priority Data1990-04-03 FRAbstractOphthalmic product comprising nanocapsules, process for preparing it and application of the nanocapsules.The present invention relates to an ophthalmic product comprising nanocapsules, characterized by a central core of lipid nature surrounded by a polymeric membrane capable of adhering to biological tissues.The present invention also relates to its preparation and to the application of the nanocapsules for ophthalmic use.Field of SearchOcularBioerrodable, resorbable, or dissolving Coated (e.g., microcapsules) Particulate form (e.g., powders, granules, beads, microcapsules, and pellets) Containing solid synthetic polymers Contains waxes, higher fatty acids, higher fatty alcohols Microcapsule-sustained or differential release | |
