US5554366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skin care method and composition
Assignee: Elizabeth Arden Inc
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Filing: 1995-01-17
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Granted: 1996-09-10
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Expires: 2015-01-17
Abstract
Abstract A composition for topical application to the skin for alleviation or prevention of dry flaky skin condition, dandruff or acne comprising stratum corneum chymotrypsin-like enzyme. The composition may additionally comprise a second enzyme selected from glycosidases, other proteases, lipases and mixtures thereof.
Inventors
- 👤 Anthony V. Rawlings
- 👤 Allan Watkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:01
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/006; A61K; A61K38/00; A61K38/16; A61K38/43; A61K38/46; A61K38/47; A61K38/48; A61K38/482; A61K38/4826; A61K8/00; A61K8/18; A61K8/30; A61K8/64; A61K8/66; A61P; A61P17/00; A61Q19/00; A61Q19/007
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
21 words
A composition for topical application to the skin which alleviates or prevents dry flaky skin conditions comprising stratum corneum chymotrypsin-like enzyme.
Claim 2
Dependent Claim
21 words
A composition for topical application to the skin which alleviates or prevents dry flaky skin conditions comprising stratum corneum chymotrypsin-like enzyme.
Claim 3
Dependent Claim
22 words
A composition according to claim 1 wherein the composition comprises 0.00001 to 50% by weight of the composition stratum corneum chymotrypsin-like enzyme.
Claim 4
Dependent Claim
22 words
A composition according to claim 1 wherein the composition comprises 0.001 to 20% by weight of the composition stratum corneum chymotrypsin-like enzyme.
Claim 5
Dependent Claim
22 words
A composition according to claim 1 wherein the composition comprises 0.1 to 10% by weight of the composition stratum corneum chymotrypsin-like enzyme.
Claim 6
Dependent Claim
21 words
A composition according to claim 1 wherein the composition additionally comprises a second enzyme selected from glycosidases, lipases and mixtures thereof.
Claim 7
Dependent Claim
22 words
A composition according to claim 5 wherein the composition comprises 0.00001 to 50% by weight of the composition of the second enzyme.
Claim 8
Dependent Claim
13 words
A composition according to claim 5 wherein the second enzyme is a glycosidase.
Claim 9
Dependent Claim
38 words
A composition according to claim 1 wherein the composition comprises: (a) stratum corneum chymotrypsin-like enzyme; and (b) a second enzyme selected from glycosidases, lipases and mixtures thereof; wherein the ratio of (a) to (b) is 100:1 to 1:1.
Claim 10
Dependent Claim
18 words
A composition according to claim 1 wherein the composition further comprises a cosmetically acceptable vehicle for the enzyme.
Claim 11
Dependent Claim
49 words
A composition according to claim 1 wherein the composition additionally comprises a protease selected from the group consisting of bromelain, papain, chymotrypsin and chymotrypsin-like enzymes, cathepsin and cathepsin-like enzymes, alcalase, savinase, chymopapain, clostripain, endoproteinase Asp N, protease V.8, proteinase K, subtilisin, thermolysin, plasmin, pronase, and trypsin and trypsin-like enzyme.
Claim 12
Dependent Claim
65 words
A composition according to claim 1 wherein the composition comprises: (a) stratum corneum chymotrypsin-like enzyme; and (b) a protease selected from the group consisting of bromelain, papain, chymotrypsin and chymotrypsin-like enzymes, cathepsin and cathepsin-like enzymes, alcalase, savinase, chymopapain, clostripain, endoproteinase Asp N, protease V.8, proteinase K, subtilisin, thermolysin, plasmin, pronase, and trypsin and trypsin-like enzyme; wherein the ratio of a:b is from 100:1 to 1:1.
Claim 13
Independent Claim
28 words
A method of relieving or ameliorating dry skin conditions, acne and dandruff which includes the topical application to the skin of a composition comprising stratum corneum chymotrypsin-like enzyme.
Claim 14
Independent Claim
28 words
A method of relieving or ameliorating dry skin conditions, acne and dandruff which includes the topical application to the skin of a composition comprising stratum corneum chymotrypsin-like enzyme.
References Cited (Backward Citations)
GB1171183A
Cited
US3660566A
Cited
WO1984002846A1
Cited
EP0425018A2
Cited
EP0425016B1
Cited
US5133968A
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US5439935A
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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) | 1999-09-10 | 2000-03-11 | 2000-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-10 | 2004-03-11 | 2004-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-10 | 2008-03-11 | 2008-09-10 | $7700.00 | Window Closed / Lapsed |