US4789489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the control of mollusks
Assignee: Buckman Laboratories International Inc
•
Filing: 1988-02-26
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Granted: 1988-12-06
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Expires: 2008-02-26
Abstract
Abstract A method for the control of fouling by marine and fresh water mollusks through the use of an ionene polymer. The disclosed method is particularly useful in controlling fouling by species of fresh water Asiatic clams of the genus Corbicula, the most common of which is C. fluminea.
Inventors
- 👤 C. George Hollis
- 👤 Richard W. Lutey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:31
CPC Classifications
A; A01; A01N; A01N33/00; A01N33/02; A01N33/12; C; C02; C02F; C02F1/00; C02F1/50
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
34 words
A method for the control of fouling by mollusks in an aqueous system comprising the step of adding to said aqueous system an amount of an ionene polymer effective for controlling fouling by mollusks.
Claim 2
Independent Claim
34 words
A method for the control of fouling by mollusks in an aqueous system comprising the step of adding to said aqueous system an amount of an ionene polymer effective for controlling fouling by mollusks.
Claim 3
Dependent Claim
12 words
The method of claim 1, wherein said mollusks are fresh water mollusks.
Claim 4
Dependent Claim
17 words
The method of claim 2, wherein said fresh water mollusks are Asiatic clams of the genus Corbicula.
Claim 5
Dependent Claim
19 words
The method of claim 3, wherein said aqueous system forms part of a nuclear or fossil-fueled power generating station.
Claim 6
Dependent Claim
10 words
The method of claim 1, wherein said mollusks are adults.
Claim 7
Dependent Claim
10 words
The method of claim 1, wherein said mollusks are juveniles.
Claim 8
Dependent Claim
18 words
The method of claim 1, wherein said aqueous system is the aqueous system of a cooling water system.
Claim 9
Dependent Claim
14 words
The method of claim 1, wherein said ionene polymer is a straight-chain ionene polymer.
Claim 10
Dependent Claim
12 words
The method of claim 1, wherein said ionene polymer is poly[oxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene dichloride].
Claim 11
Dependent Claim
13 words
The method of claim 1, wherein said ionene polymer is poly[2-hydroxyethylene(dimethyliminio)-2-hydroxypropylene (dimethyliminio)methylene dichloride].
Claim 12
Dependent Claim
15 words
The method of claim 1, wherein said ionene polymer is prepared from N,N,N',N'-tetramethylethylenediamine and epichlorohydrin.
Claim 13
Independent Claim
40 words
A method for the control of fouling by mollusks in an aqueous system which comprises the step of adding to said aqueous system an ionene polymer in an amount effective for preventing the attachment of juvenile mollusks to a surface.
Claim 14
Independent Claim
40 words
A method for the control of fouling by mollusks in an aqueous system which comprises the step of adding to said aqueous system an ionene polymer in an amount effective for preventing the attachment of juvenile mollusks to a surface.
Claim 15
Dependent Claim
15 words
The method of claim 12, wherein said mollusks are Asiatic clams of the genus Corbicula.
Claim 16
Dependent Claim
18 words
The method of claim 12, wherein said aqueous system is the aqueous system of a cooling water system.
Claim 17
Dependent Claim
14 words
The method of claim 12, wherein said ionene polymer is a straight-chain ionene polymer.
Claim 18
Dependent Claim
12 words
The method of claim 12, wherein said ionene polymer is poly[oxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene dichloride].
Claim 19
Dependent Claim
13 words
The method of claim 12, wherein said ionene polymer is poly[2-hydroxyethylene(dimethyliminio)-2-hydroxypropylene (dimethyliminio)methylene dichloride].
Claim 20
Dependent Claim
15 words
The method of claim 12, wherein said ionene polymer is prepared from N,N,N',N'-tetramethylethylenediamine and epichlorohydrin.
Claim 21
Independent Claim
38 words
A method for reducing the viability of a population of mollusks comprising the step of contacting at least a part of said population with an amount of an ionene polymer effective for reducing the viability of said population.
Claim 22
Independent Claim
38 words
A method for reducing the viability of a population of mollusks comprising the step of contacting at least a part of said population with an amount of an ionene polymer effective for reducing the viability of said population.
Claim 23
Dependent Claim
12 words
The method of claim 19, wherein said ionene polymer is poly[oxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene dichloride].
Claim 24
Dependent Claim
13 words
The method of claim 19, wherein said ionene polymer is poly[2-hydroxyethylene(dimethyliminio)-2-hydroxypropylene (dimethyliminio)methylene dichloride].
Claim 25
Dependent Claim
15 words
The method of claim 19, wherein said ionene polymer is prepared from N,N,N',N'-tetramethylethylenediamine and epichlorohydrin.
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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) | 1991-12-06 | 1992-06-06 | 1992-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-06 | 1996-06-06 | 1996-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-06 | 2000-06-06 | 2000-12-06 | $7700.00 | Window Closed / Lapsed |