US4666896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorhexidine salts and compositions of same
Assignee: Bristol Myers Co
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Filing: 1985-05-14
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Granted: 1987-05-19
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Expires: 2005-05-14
Abstract
Abstract The dinalidixate and diphosphanilate salts of chlorhexidine possess antibacterial activity. They exhibit synergism as compared with comparable concentrations of chlorhexidine and the respective free acid. Synergistic compositions comprising a mixture of a chlorhexidine salt with phosphanilic acid or a salt of phosphanilic acid, or with nalidixic acid, or a salt of nalidixic acid are disclosed. Dermatological compositions of such novel salts, and all such mixtures, are provided.
Inventors
- 👤 Paul L. Warner, Jr.
- 👤 Grey B. Kornegay
- 👤 George Redl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:17
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/04; C07C; C07C279/00; C07C279/20; C07C279/24; C07C279/26; C07C279/265; C07C57/00; C07C57/02; C07C57/03; C07C57/10; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3834
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
4 words
The compound chlorhexidine diphosphanilate.
Claim 2
Dependent Claim
4 words
The compound chlorhexidine diphosphanilate.
Claim 3
Dependent Claim
17 words
An antibacterial composition comprising an effective amount of the compound chlorhexidine diphosphanilate and a pharmaceutically acceptable carrier.
Claim 4
Dependent Claim
17 words
An antibacterial composition comprising an effective amount of the compound chlorhexidine diphosphanilate and a pharmaceutically acceptable carrier.
Claim 5
Dependent Claim
28 words
The composition of claim 2, wherein the compound is present in an amount of from about 0.1 to 10 percent by weight, based on the total composition weight.
Claim 6
Dependent Claim
28 words
The composition of claim 2, wherein the compound is present in an amount of from about 0.25 to 5.0 percent by weight, based on the total composition weight.
Claim 7
Dependent Claim
28 words
The composition of claim 2, wherein the compound is present in an amount of from about 0.75 to 2.5 percent by weight, based on the total composition weight.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |