Patent US4339432A successfully refreshed from Google Patents.
US4339432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oral mouthwash containing zinc and glycine
Assignee: CPPD Inc A CORP OF
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Filing: 1981-02-17
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Granted: 1982-07-13
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Expires: 2001-02-17
Abstract
Abstract The astringency of an oral mouthwash composition containing biologically active zinc ions may be reduced by the addition of glycine to the composition, and adjustment of the pH to 4.5 to 8. In addition, zinc ions may be kept in a biologically active solution at this pH by the addition of glycine. The zinc-glycine combination serves as an anticalculus-antiplaque agent in oral compositions.
Inventors
- 👤 Thomas W. Ritchey
- 👤 John M. Weaver
- 👤 Martin Sapone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:32
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/27; A61K8/30; A61K8/40; A61K8/44
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
99 words
An oral mouthwash composition having a pH of about 4.5 to about 8.0 comprising a physiologically acceptable zinc salt or zinc glycinate in an amount sufficient to provide about 0.04% to about 0.7% by weight of the composition of soluble zinc ions wherein said zinc salts may have a tendency to produce the organoleptically displeasing effect of astringency; and glycine at a level of about 0.01% to about 4% by weight of the composition as the essential effective agent reducing astringency or said glycine serving to effectively solubilize said zinc salts at a pH of about 8 or above.
Claim 2
Dependent Claim
99 words
An oral mouthwash composition having a pH of about 4.5 to about 8.0 comprising a physiologically acceptable zinc salt or zinc glycinate in an amount sufficient to provide about 0.04% to about 0.7% by weight of the composition of soluble zinc ions wherein said zinc salts may have a tendency to produce the organoleptically displeasing effect of astringency; and glycine at a level of about 0.01% to about 4% by weight of the composition as the essential effective agent reducing astringency or said glycine serving to effectively solubilize said zinc salts at a pH of about 8 or above.
Claim 3
Dependent Claim
13 words
The composition according to claim 1 wherein the zinc salt is zinc chloride.
Claim 4
Dependent Claim
32 words
The composition according to claim 1 wherein the zinc salt is present in an amount sufficient to provide a level of soluble zinc ions of about 0.1% to about 0.3% by weight.
Claim 5
Dependent Claim
22 words
The composition according to claim 1 wherein the glycine is present at a level of about 0.1% to about 1% by weight.
Claim 6
Dependent Claim
22 words
The composition according to claim 1 wherein the zinc salt is at a level of about 0.04% to about 2.0% by weight.
Claim 7
Independent Claim
63 words
A method for reducing the astringency of an oral mouthwash composition containing biologically active zinc ions in an amount of about 0.04% to about 0.7% by weight of the composition comprising adding glycine to said composition in an amount of from about 0.01% to about 4% by weight and adjusting the pH of said composition to about 4.5 to about 8.0, or above.
Claim 8
Independent Claim
63 words
A method for reducing the astringency of an oral mouthwash composition containing biologically active zinc ions in an amount of about 0.04% to about 0.7% by weight of the composition comprising adding glycine to said composition in an amount of from about 0.01% to about 4% by weight and adjusting the pH of said composition to about 4.5 to about 8.0, or above.
Claim 9
Dependent Claim
15 words
The method defined in claim 6 wherein the zinc ions are supplied by zinc chloride.
Claim 10
Dependent Claim
14 words
The method defined in claim 6 wherein the pH is adjusted to about 7.
Claim 11
Dependent Claim
13 words
The method of claim 6 wherein the pH is adjusted with sodium carbonate.
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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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |