US4512978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dermatological composition useful in the treatment of psoriasis
Assignee: Individual
•
Filing: 1982-10-15
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Granted: 1985-04-23
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Expires: 2002-10-15
Abstract
Abstract Dermatological compositions containing urea, zinc oxide, castor oil and starch in a hydrophilic ointment are disclosed. The compositions can be used to treat certain diseases of the nails and skin. The compositions may also contain crude coal tar, hydrocortisone, petrolatum and water.
Inventors
- 👤 Louis R. Inwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:00
CPC Classifications
A; A61; A61K; A61K35/00; A61K35/02; A61K35/04; A61K33/00; A61K33/24; A61K33/30; A61K36/00; A61K36/18; A61K36/185; A61K36/47; A61P; A61P17/00; A61P43/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
33 words
A dermatological composition comprising 1-20% castor oil, 3-10% crude coal tar, 1-30% starch, 1-20% zinc oxide and 5-40% urea in a hydrophilic ointment base; all percentages expressed by weight of the final composition.
Claim 2
Dependent Claim
33 words
A dermatological composition comprising 1-20% castor oil, 3-10% crude coal tar, 1-30% starch, 1-20% zinc oxide and 5-40% urea in a hydrophilic ointment base; all percentages expressed by weight of the final composition.
Claim 3
Dependent Claim
12 words
A composition according to claim 1, wherein castor oil comprises 2-5% thereof.
Claim 4
Dependent Claim
12 words
A composition according to claim 2, additionally comprising 0.1% to 5% hydrocortisone.
Claim 5
Dependent Claim
15 words
A composition according to any of claims 1, 2, and 3, additionally comprising 1-60% water.
Claim 6
Dependent Claim
15 words
A composition according to any of claims 1, 2, and 3, additionally comprising 1-20% petrolatum.
Claim 7
Dependent Claim
10 words
A composition according to claim 5, additionally comprising 1-60% water.
Claim 8
Dependent Claim
11 words
A composition according to claim 1, wherein starch is corn starch.
Claim 9
Dependent Claim
28 words
A composition according to claim 2, having the following formulation: 20% urea, 3% crude coal tar, 2% zinc oxide 4% castor oil, 10% starch, and 61% hydrolphilic ointment.
Claim 10
Dependent Claim
30 words
A composition according to claim 4, having the following formulation: 20% urea, 3% crude coal tar, 2% zinc oxide, 4% castor oil, 10% starch, 31% hydrophilic ointment and 30% water.
Claim 11
Dependent Claim
28 words
A composition according to claim 2, having the following formulation: 20% urea, 4% crude coal tar, 2% zinc oxide, 4% castor oil, 10% starch and 60% hydrophilic ointment.
Claim 12
Dependent Claim
28 words
A composition according to claim 2, having the following formulation: 20% urea, 5% crude coal tar, 25 zinc oxide, 5% castor oil, 10% starch, and 58% hydrophilic ointment.
Claim 13
Dependent Claim
28 words
A composition according to claim 2, having the following formulation: 20% urea, 10% crude coal tar, 2% zinc oxide, 5% castor oil, 10% starch, and 53% hydrophilic ointment.
Claim 14
Dependent Claim
30 words
A composition according to claim 4, having the following formulation: 20% urea, 10% crude coal tar, 2% zinc oxide, 5% castor oil 10% starch, 28% hydrophilic ointment and 25% water.
Claim 15
Dependent Claim
32 words
A composition according to claim 4, having the following formulation: 20% urea, 3% crude coal tar, 2% zinc oxide, 4% castor oil, 10% starch, 31% hydrophilic ointment, 29% water and 1% cortisone.
Claim 16
Dependent Claim
29 words
A method of treating a patient afflicted with psoriasis, said method comprising topically applying to the affected area a therapeutically effective amount of the composition according to claim 1.
Claim 17
Dependent Claim
29 words
A method of treating a patient afflicted with psoriasis, said method comprising topically applying to the affected area a therapeutically effective amount of the composition according to claim 2.
Claim 18
Dependent Claim
29 words
A method of treating a patient afflicted with psoriasis, said method comprising topically applying to the affected area a therapeutically effective amount of the composition according to claim 3.
References Cited (Backward Citations)
US2082063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |