Patent US4760096A successfully refreshed from Google Patents.
US4760096A
Expired / Lapsed
US
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Moisturizing skin preparation
Assignee: Key Pharmaceuticals Inc
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Filing: 1985-09-27
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Granted: 1988-07-26
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Expires: 2005-09-27
Abstract
Abstract A skin moisturizing preparation, such as a skin cream, face cream, lotion or ointment containing a combination of a phosphatide such as soy lecithin and one or more C10-C30 carboxylic acid sterol esters. The preparation preferably also contains a caprylic/capric acid triglyceride for enhanced moisturization. There is also described a method of treating dry skin by topical application of such moisturizing preparations.
Inventors
- 👤 Kirk Sakai
- 👤 Timothy W. Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:05
CPC Classifications
A; A61; A61Q; A61Q19/00; A61Q19/007; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/26; A61K8/30; A61K8/33; A61K8/37; A61K8/375; A61K8/55; A61K8/553; A61K8/63; A61K8/72; A61K8/84; A61K8/86
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
65 words
A moisturizing skin preparation comprising a combination of about 0.05 to about 5 percent by weight of a skin compatible phosphatide, about 0.02 to about 5 percent by weight of one or more C 10 -C 30 carboxylic acid sterol esters and about 0.5 to about 10 percent by weight of at least one C 6 -C 12 alkanoic triglyceride in a dermatologically acceptable carrier.
Claim 2
Dependent Claim
65 words
A moisturizing skin preparation comprising a combination of about 0.05 to about 5 percent by weight of a skin compatible phosphatide, about 0.02 to about 5 percent by weight of one or more C 10 -C 30 carboxylic acid sterol esters and about 0.5 to about 10 percent by weight of at least one C 6 -C 12 alkanoic triglyceride in a dermatologically acceptable carrier.
Claim 3
Dependent Claim
10 words
The preparation of claim 1 wherein the phosphatide comprises phosphatidylcholine.
Claim 4
Dependent Claim
21 words
The preparation of claim 2 wherein the phosphatide is in soy lecithin containing at least about 5 percent by weight phosphatidylcholine.
Claim 5
Dependent Claim
17 words
The preparation of claim 3 wherein the soy lecithin contains at least 90 percent by weight phosphatidylcholine.
Claim 6
Dependent Claim
25 words
The preparation of claim 1 comprising about 1 to 3 parts by weight of the sterol ester for each 3 parts by weight of phosphatide.
Claim 7
Dependent Claim
22 words
The preparation of claim 5 comprising about 2 parts by weight of sterol ester for each 3 parts by weight of phosphatide.
Claim 8
Dependent Claim
14 words
The preparation of claim 5 comprising approximately equimolar amounts of sterol ester and phosphatide.
Claim 9
Dependent Claim
15 words
The preparation of claim 4 comprising about 0.1 to about 1 percent by weight phosphatide.
Claim 10
Dependent Claim
15 words
The preparation of claim 8 comprising about 0.05 to 1 percent by weight sterol ester.
Claim 11
Dependent Claim
37 words
The preparation of claim 9 wherein the alkanoic triglyceride is a mixed acid triglyceride comprising about 50 to about 65 percent by weight caprylic acid triglyceride and about 30 to about 45 percent by weight capric triglyceride.
Claim 12
Dependent Claim
18 words
The preparation of claim 10 comprising about 2 to about 4 percent by weight of the alkanoic triglyceride.
Claim 13
Dependent Claim
17 words
The preparation of claim 1 comprising about 0.05 to about 1 percent by weight of sterol ester.
Claim 14
Dependent Claim
18 words
The preparation of claim 12 comprising about 2 to about 4 percent by weight of the alkanoic triglyceride.
Claim 15
Dependent Claim
37 words
The preparation of claim 1 wherein the alkanoic triglyceride is a mixed acid triglyceride comprising about 50 to about 65 percent by weight caprylic acid triglyceride and about 30 to about 45 percent by weight capric triglyceride.
Claim 16
Dependent Claim
17 words
The preparation of claim 1 in the form of a skin cream, face cream, lotion or ointment.
Claim 17
Dependent Claim
18 words
A method of treating dry skin comprising topically applying a moisturing skin preparation as described in claim 1.
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) | 1991-07-26 | 1992-01-25 | 1992-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-26 | 1996-01-25 | 1996-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-26 | 2000-01-25 | 2000-07-26 | $7700.00 | Window Closed / Lapsed |