US4671957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antibacterial cream
Assignee: Euro Celtique SA
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Filing: 1985-12-09
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Granted: 1987-06-09
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Expires: 2005-12-09
Abstract
Abstract An antibacterial cream is provided which can be used for topical application in the treatment of burns and other skin disorders. The topical creams of the invention can be used without the need to destroy surface barriers and provide significant penetration into the wound. The creams of the present invention comprise a bacterial agent distributed in a cream base which contains 20-50% of at least one hydrocarbon component and at least one polyol moisturizing component, on a weight to weight basis.
Inventors
- 👤 Peter D. Holtshousen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:12
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/06; A61K47/00; A61K47/06; A61K47/08; A61K47/10; A61K9/0012; A61K9/0014; A61P; A61P31/00; A61P31/04
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
76 words
Antibacterial cream for topical application, said cream comprising an antibacterial effective amount of polyvinyl-pyrrolidone-iodine distributed in an oil-in-water emulsion topical cream base containing water and, in an amount of 20-50% by weight, a mixture of at least one hydrocarbon component, and at least one polyol moisturizing component, wherein about 15-40% by weight of said base is comprised of said hydrocarbon component, and about 5-20% by weight of said base is comprised of said polyol moisturizing component.
Claim 2
Dependent Claim
76 words
Antibacterial cream for topical application, said cream comprising an antibacterial effective amount of polyvinyl-pyrrolidone-iodine distributed in an oil-in-water emulsion topical cream base containing water and, in an amount of 20-50% by weight, a mixture of at least one hydrocarbon component, and at least one polyol moisturizing component, wherein about 15-40% by weight of said base is comprised of said hydrocarbon component, and about 5-20% by weight of said base is comprised of said polyol moisturizing component.
Claim 3
Dependent Claim
14 words
Antibacterial cream according to claim 1 wherein said base contains 25-40% of said mixture.
Claim 4
Dependent Claim
26 words
Antibacterial cream according to claim 1 wherein said hydrocarbon component is selected from the group consisting of mineral oil, liquid petrolatum, white petrolatum and white ointment.
Claim 5
Dependent Claim
19 words
Antibacterial cream according to claim 1 wherein said hydrocarbon component is a mixture of liquid petrolatum and white petrolatum.
Claim 6
Dependent Claim
18 words
Antibacterial cream according to claim 1 wherein the hydrocarbon component of said base constitutes 20-30% by weight thereof.
Claim 7
Dependent Claim
13 words
Antibacterial cream according to claim 1 wherein said polyol moisturizing component is glycerin.
Claim 8
Dependent Claim
18 words
Antibacterial cream according to claim 1 wherein said polyol moisturizing component constitutes 5-15% by weight of said base.
Claim 9
Dependent Claim
25 words
Antibacterial cream according to claim 1 wherein the ratio by weight of said hydrocarbon component to said polyol moisturizing component is between 1:1 and 4:1.
Claim 10
Dependent Claim
23 words
Antibacterial cream according to claim 8 wherein the ratio by weight of said hydrocarbon component to said polyol moisturizing component is about 2:1.
Claim 11
Dependent Claim
13 words
Antibacterial cream according to claim 1 and also including at least one emulsifier.
Claim 12
Dependent Claim
20 words
Antibacterial cream according to claim 10 wherein the amount of said emulsifier is about 1-15% by weight of said base.
Claim 13
Dependent Claim
21 words
Antibacterial cream according to claim 1 and having a viscosity adjusted to between about 25,000 and 67,000 centipoises at 25° C.
Claim 14
Dependent Claim
25 words
Antibacterial cream according to claim 1 wherein said iodophor is present in an amount to provide an available iodine concentration of about 0.1-2% by weight.
Claim 15
Dependent Claim
17 words
Antibacterial cream according to claim 13 wherein the amount of available iodine is about 0.2-1.5% by weight.
Claim 16
Dependent Claim
93 words
Method of treating burns and other skin disorders, which comprises applying topically to an area of the skin requiring such treatment, an antibacterial cream containing an antibacterial effective amount of polyvinylpyrrolidone-iodine distributed in an oil-in-water emulsion topical cream base containing water and, in an amount of 20-50% by weight, a mixture of at least one hydrocarbon component, and at least on polyol moisturizing component. wherein about 15-40% by weight of said base is comprised of said hydrocarbon component, and about 5-20% by weight of said base is comprised of said polyol moisturizing component.
Claim 17
Dependent Claim
93 words
Method of treating burns and other skin disorders, which comprises applying topically to an area of the skin requiring such treatment, an antibacterial cream containing an antibacterial effective amount of polyvinylpyrrolidone-iodine distributed in an oil-in-water emulsion topical cream base containing water and, in an amount of 20-50% by weight, a mixture of at least one hydrocarbon component, and at least on polyol moisturizing component. wherein about 15-40% by weight of said base is comprised of said hydrocarbon component, and about 5-20% by weight of said base is comprised of said polyol moisturizing component.
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) | 1990-06-08 | 1990-12-08 | 1991-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-08 | 1994-12-08 | 1995-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-08 | 1998-12-08 | 1999-06-09 | $7700.00 | Window Closed / Lapsed |