Patent US4352794A successfully refreshed from Google Patents.
US4352794A
Expired / Lapsed
US
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Beta-cyclodextrin as anti-acne agent
Assignee: Individual
•
Filing: 1980-11-28
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Granted: 1982-10-05
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Expires: 2000-11-28
Abstract
Abstract A method for treating acne in which beta-cyclodextrin is applied to the acne typically in the form of a lotion, ointment, cream, gel or the like, in a concentration from 0.1-10, preferably 1-5%, by weight.
Inventors
- 👤 Jurgen Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:09
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/73; A61K8/738; A61Q; A61Q19/00; Y; Y10; Y10S; Y10S424/00; Y10S424/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
51 words
A method of treating a patient suffering from acne, comprising topically applying to the acne beta-cyclodextrin in an acne treating effective amount, the beta-cyclodextrin being applied to the acne in a cosmetic or pharmaceutical acceptable carrier, the carrier containing substantially no organic compounds with molecular weights between 100 and 10,000 daltons.
Claim 2
Independent Claim
51 words
A method of treating a patient suffering from acne, comprising topically applying to the acne beta-cyclodextrin in an acne treating effective amount, the beta-cyclodextrin being applied to the acne in a cosmetic or pharmaceutical acceptable carrier, the carrier containing substantially no organic compounds with molecular weights between 100 and 10,000 daltons.
Claim 3
Dependent Claim
22 words
The method of claim 1 in which the carrier contains no organic substances with a molecular weight between 100 and 10,000 daltons.
Claim 4
Dependent Claim
22 words
The method of claim 1 in which the concentration of the beta-cyclodextrin in the carrier is from 0.1 to 10% by weight.
Claim 5
Dependent Claim
22 words
The method of claim 1 in which the concentration of the beta-cyclodextrin in the carrier is from 1 to 5% by weight.
Claim 6
Dependent Claim
24 words
The method of claim 1 in which the beta-cyclodextrin is applied to the acne in the form of a lotion, ointment, cream or gel.
Claim 7
Dependent Claim
21 words
The method of claim 1 in which the beta-cyclodextrin is applied to the acne in the form of an aqueous-alcoholic solution.
Claim 8
Dependent Claim
13 words
The method of claim 1 in which the carrier contains a preserving agent.
Claim 9
Dependent Claim
17 words
The method of claim 1 in which the carrier contains at most 1% of a preserving agent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-04 | 1986-04-05 | 1986-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-04 | 1990-04-05 | 1990-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-04 | 1994-04-05 | 1994-10-05 | $7700.00 | Window Closed / Lapsed |