Patent US4176197A successfully refreshed from Google Patents.
US4176197A
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Method for treating acne vulgaris
Assignee: Dominion Pharmacal Inc
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Filing: 1978-02-03
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Granted: 1979-11-27
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Expires: 1998-02-03
Abstract
Abstract The present invention relates to treatment of dermatological conditions. In more particular, it relates to the use of oxygen potentiating compositions not heretofore employed or recognized as effective in the treatment of acne vulgaris and related dermatological conditions. The compositions comprise, as active ingredients, a combination of a cationic surface active quaternary ammonium halide and a thio-amino compound.
Inventors
- 👤 B. Newell Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:15
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/415; A61K31/185; A61K31/19; A61K31/195; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/416; A61K8/44; A61K8/447; A61Q; A61Q19/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
A method of treating patients afflicted with acne which comprises topically applying to the skin of said patients a liquid solution consisting essentially of allantoin N-acetyl DL methionine complex in the order of 0.25 percent and quaternary ammonium chloride in the order of 0.13 percent and sufficient alkali to produce a final pH in the range of from pH 3 to 7.
Claim 2
Independent Claim
62 words
A method of treating patients afflicted with acne which comprises topically applying to the skin of said patients a liquid solution consisting essentially of allantoin N-acetyl DL methionine complex in the order of 0.25 percent and quaternary ammonium chloride in the order of 0.13 percent and sufficient alkali to produce a final pH in the range of from pH 3 to 7.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein said quaternary ammonium chloride is diisobutylphenoxyethoxyethyldimethylbenzyl ammonium chloride.
Claim 4
Dependent Claim
20 words
The method of claim 1 wherein said alkali is a solution of tetra sodium salt of ethylenediamine tetra acetic acid.
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) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |