US5055456A
Expired / Lapsed
US
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Anti-alopecia composition
Assignee: Wyeth Holdings LLC
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Filing: 1989-01-27
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Granted: 1991-10-08
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Expires: 2009-01-27
Abstract
Abstract This invention is concerned with a composition of matter and method of applying same for use as hair grooming aid or preferably, to treat androgenetic alopecia comprising (a) an effective amount of a polysaccharide or mixtures thereof, polysaccharide derivatives or mixtures thereof, or any combination of the foregoing; and (b) a minor amount of a fatty acid ester of sorbitol and its anhydrides, or mixture of said fatty acid esters; and (c) a minor amount of a lower alkyl ester of p-hydroxy benzoic acid or mixture of said esters; and (d) water sufficient to create a composition of 100% by volume.
Inventors
- 👤 Bruce J. Harris
- 👤 James R. Lawter
- 👤 Lawrence Ritter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:14
CPC Classifications
A; A61; A61Q; A61Q7/00; A61K; A61K31/00; A61K31/70; A61K31/715; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4973; A61K8/4993; A61K8/72; A61K8/73; A61K8/731
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
A method for treating androgenetic alopecia in humans, said method comprising applying to the affected areas of the scalp a composition comprising: a) an effective amount of a polysaccharide or mixtures thereof, a polysaccharide derivative or mixtures thereof, or any combination of the foregoing; b) a minor amount of a fatty acid ester of sorbitol and its anhydrides or a mixture of said fatty acid esters; c) a minor amount of a lower alkyl ester of p-hydroxy benzoic acid or mixture of said esters; and d) water q.s to 100% by volume.
Claim 2
Independent Claim
92 words
A method for treating androgenetic alopecia in humans, said method comprising applying to the affected areas of the scalp a composition comprising: a) an effective amount of a polysaccharide or mixtures thereof, a polysaccharide derivative or mixtures thereof, or any combination of the foregoing; b) a minor amount of a fatty acid ester of sorbitol and its anhydrides or a mixture of said fatty acid esters; c) a minor amount of a lower alkyl ester of p-hydroxy benzoic acid or mixture of said esters; and d) water q.s to 100% by volume.
Claim 3
Dependent Claim
26 words
A method as defined in claim 1 wherein component (a) comprised a polysaccharide with a number average molecular weight of between about 250,000 and about 1,000,000.
Claim 4
Dependent Claim
12 words
A method as defined in claim 1 wherein component (a) comprises carboxymethylcellulose.
Claim 5
Dependent Claim
20 words
A method as defined in claim 3 wherein the carboxymethylcellulose is present in an amount of about 0.30% by weight.
Claim 6
Dependent Claim
13 words
A method as defined in claim 1 wherein component (b) comprises polysorbate 20.
Claim 7
Dependent Claim
21 words
A method as defined in claim 5 wherein the polysorbate 20 is present in an amount of about 0.10% by weight.
Claim 8
Dependent Claim
17 words
A method as defined in claim 1 wherein component (c) comprises a mixture of methylparaben and propylparaben.
Claim 9
Dependent Claim
18 words
A method as defined in claim 7 wherein the methylparaben is present in an amount of about 0.08%.
Claim 10
Dependent Claim
25 words
A method as defined in claim 1 wherein said composition is applied in equal divided doses of from about 0.01 ml to about 5 ml.
Claim 11
Dependent Claim
25 words
A method as defined in claim 9 wherein said composition is applied in equal divided doses of from about 0.05 ml to about 2.5 ml.
Claim 12
Dependent Claim
25 words
A method as defined in claim 10 wherein said composition is applied in equal divided doses of from about 0.1 ml to about 1 ml.
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) | 1994-10-07 | 1995-04-08 | 1995-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-07 | 1999-04-08 | 1999-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-07 | 2003-04-08 | 2003-10-08 | $7700.00 | Window Closed / Lapsed |