US3856667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microbial degradation of petroleum
Assignee: Bioteknika International Inc
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Filing: 1972-12-11
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Granted: 1974-12-24
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Expires: 1992-12-11
Abstract
Abstract A process for the microbial degradation of petroleum or oily waste materials which comprises treating the petroleum or oily waste with a strain of Candida lipolytica for a sufficient time until degradation has been achieved. The microorganism strains employed have a broad spectrum of degradation capability and are capable of degrading crude petroleum as well as a variety of organic molecules, including aliphatic, aromatic and heterocyclic compounds.
Inventors
- 👤 E Azarowicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:34
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/921; Y10S435/923
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
74 words
A PROCESS FOR THE MICROBIAL DEGRADATION OF AQUEOUS POLLUTING PETROLEUM AND OILY WASTES WHICH COMPRISES TREATING THE PETROLEUM OR OILY WASTE WITH AT LEAST ONE MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF CANDIDA LIPOLYTICA 2005 ATCC 20255 ATCC 20363, AND CANDIDA LIPOLYTICA 2004 LIPOLYTICA 2003 ATCC 20363, AND CANDIDA LIPOLYTICA 2004 ATCC 20364, AND MUTANTS THEREOF IN AN AQUEOUS SYSTEM FOR A SUFFICIENT TIME UNNNTIL THE TREATED PETROLEUM OILY WASTE HAS BEEN SUBSTANTIALLY DEGRADED.
Claim 2
Dependent Claim
74 words
A PROCESS FOR THE MICROBIAL DEGRADATION OF AQUEOUS POLLUTING PETROLEUM AND OILY WASTES WHICH COMPRISES TREATING THE PETROLEUM OR OILY WASTE WITH AT LEAST ONE MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF CANDIDA LIPOLYTICA 2005 ATCC 20255 ATCC 20363, AND CANDIDA LIPOLYTICA 2004 LIPOLYTICA 2003 ATCC 20363, AND CANDIDA LIPOLYTICA 2004 ATCC 20364, AND MUTANTS THEREOF IN AN AQUEOUS SYSTEM FOR A SUFFICIENT TIME UNNNTIL THE TREATED PETROLEUM OILY WASTE HAS BEEN SUBSTANTIALLY DEGRADED.
Claim 3
Dependent Claim
17 words
The process of claim 1, wherein said microorganism is employed in a dry powdery or pelletized form.
Claim 4
Dependent Claim
14 words
The process of claim 1 wherein said microorganism is mixed with a cellulosic material.
Claim 5
Dependent Claim
21 words
The process of claim 1, wherein said microorganism is mixed with a cellulosic material, a nitrogen source and a phosphorus source.
Claim 6
Dependent Claim
12 words
The process of claim 4, wherein said nitrogen source is cottonseed protein.
Claim 7
Dependent Claim
16 words
The process of claim 1, wherein said microorganism is employed in a slurry or wet-packed form.
Claim 8
Dependent Claim
14 words
The process of claim 1, wherein said microorganism is Candida lipolytica 2005 ATCC 20255.
Claim 9
Dependent Claim
14 words
The process of claim 1 wherein said microorganism is Candida lipolytica 2002 ATCC 20362.
Claim 10
Dependent Claim
14 words
The process of claim 1, wherein said microorganism is Candida lipolytica 2003 ATCC 20363.
Claim 11
Dependent Claim
14 words
The process of claim 1, wherein said microorganism is Candida lipolytica 2004 ATCC 20364.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |