US4976969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ophthalmic solution comprising iodine-polyvinylpyrrolidone complex
Assignee: Rohm and Haas Co
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Filing: 1988-11-09
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Granted: 1990-12-11
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Expires: 2008-11-09
Abstract
Abstract An ophthalmic solution comprising 0.1 to 0.9 % volume of povidone iodine in association with a suitable ophthalmic carrier. The solution is useful in treating various ophthalmic disorders such as follicular conjunctivitis and giant papillary conjunctivitis resulting from reaction to contact lenses, cosmetics and allergies among others. It is also useful in the treatment of ocular dryness resulting from post menopausal stage and from Sjogren's disease.
Inventors
- 👤 Marc Plamondon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
A; A61; A61K; A61K33/00; A61K33/18; A61K47/00; A61K47/50; A61K47/51; A61K47/56; A61K47/58; A61K9/00; A61K9/0012; A61K9/0048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A method for treating allergic follicular conjunctivitis, giant papillary conjunctivitis, vernal conjunctivitis, kerato conjunctivitis sicca, and ocular dryness, which comprises administering a therapeutically effective amount of an ophtalmic solution which comprises about 0.4 to 0.9% of povidone iodine in association with a pharmaceutically acceptable ophtalmic carrier selected from the group consisting of hydroxyethyl cellulose, methylcellulose and polyvinylalcohol.
Claim 2
Independent Claim
57 words
A method for treating allergic follicular conjunctivitis, giant papillary conjunctivitis, vernal conjunctivitis, kerato conjunctivitis sicca, and ocular dryness, which comprises administering a therapeutically effective amount of an ophtalmic solution which comprises about 0.4 to 0.9% of povidone iodine in association with a pharmaceutically acceptable ophtalmic carrier selected from the group consisting of hydroxyethyl cellulose, methylcellulose and polyvinylalcohol.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-10 | 1994-06-11 | 1994-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-10 | 1998-06-11 | 1998-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-10 | 2002-06-11 | 2002-12-11 | $7700.00 | Window Closed / Lapsed |