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Patent US5139682A successfully refreshed from Google Patents.
US5139682A
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Zeolite enhanced organic biotransformation
Assignee: Leland Stanford Junior University
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Filing: 1991-11-21
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Granted: 1992-08-18
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Expires: 2011-11-21
Abstract
Abstract An improved method of removing contaminants from gas or liquids is disclosed. The contaminated fluid is brought into contact with a zeolite. The zeolite is then transferred to a vessel containing a bacterial culture which is used to regenerate the zeolite.
Inventors
- 👤 Perry L. McCarty
- 👤 Lisa M. Alvarez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:34
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1205; C02F3/1226; B; B01; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/84; B01J; B01J20/00; B01J20/30; B01J20/34; B01J20/3408; C02F1/00; C02F1/28; C02F1/281; C02F3/34; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A method for removing a contaminant from a gas or liquid comprising the steps of: bringing said gas or liquid into contact with a zeolite that will sorb said contaminant; separating said zeolite from said gas or liquid; and regenerating said zeolite by incubating said zeolite with a bacterial culture that degrades said contaminant to CO 2 and H 2 O.
Claim 2
Independent Claim
61 words
A method for removing a contaminant from a gas or liquid comprising the steps of: bringing said gas or liquid into contact with a zeolite that will sorb said contaminant; separating said zeolite from said gas or liquid; and regenerating said zeolite by incubating said zeolite with a bacterial culture that degrades said contaminant to CO 2 and H 2 O.
References Cited (Backward Citations)
US4098690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |