Patent US4220720A successfully refreshed from Google Patents.
US4220720A
Expired / Lapsed
US
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Manufacture of fatty acids having straight and long carbon chains using a microorganism
Assignee: Bio Research Center Co Ltd
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Filing: 1978-12-11
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Granted: 1980-09-02
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Expires: 1998-12-11
Abstract
Abstract A method for the oxidation of hydrocarbons to monocarboxylic acids and thence to dicarboxylic acids by the aerobic resting cell reaction of the organism Debaryomyces phaffii ATCC 20499.
Inventors
- 👤 Akira Taoka
- 👤 Seiichi Uchida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:56
CPC Classifications
C; C12; C12P; C12P7/00; C12P7/64; C12P7/6409; C12P7/40; C12P7/44; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
In the production of C 8 -C 18 mono- and di-carboxylic acids from straight chain hydrocarbons wherein the hydrocarbon and the resulting acid have the same number of carbon atoms in the skeletal chain by aerobically cultivating the hydrocarbon with a microorganism in a nutrient medium, the improvement which comprises using as the microorganism Debaryomyces phaffi, ATCC 20499.
Claim 2
Dependent Claim
58 words
In the production of C 8 -C 18 mono- and di-carboxylic acids from straight chain hydrocarbons wherein the hydrocarbon and the resulting acid have the same number of carbon atoms in the skeletal chain by aerobically cultivating the hydrocarbon with a microorganism in a nutrient medium, the improvement which comprises using as the microorganism Debaryomyces phaffi, ATCC 20499.
Claim 3
Dependent Claim
57 words
In the production of C 8 -C 18 dicarboxylic acids from monocarboxylic acids wherein the monocarboxylic acid and the resulting dicarboxylic acid have the same number of carbon atoms in the skeletal chain by aerobically cultivating the monocarboxylic acid with a microorganism in a nutrient medium, the improvement which comprises using the microorganism Debaryomyces phaffii, ATCC 20499.
Claim 4
Dependent Claim
57 words
In the production of C 8 -C 18 dicarboxylic acids from monocarboxylic acids wherein the monocarboxylic acid and the resulting dicarboxylic acid have the same number of carbon atoms in the skeletal chain by aerobically cultivating the monocarboxylic acid with a microorganism in a nutrient medium, the improvement which comprises using the microorganism Debaryomyces phaffii, ATCC 20499.
Claim 5
Dependent Claim
67 words
On the production of C 8 -C 18 dicarboxylic acids from straight chain hydrocarbons and monocarboxylic acids wherein the hydrocarbon and monocarboxylic acid and the resulting dicarboxylic acid have the same number of carbon atoms in the skeletal chain by aerobically cultivating the hydrocarbon and the monocarboxylic acid with a microorganism in a nutrient medium, the improvement which comprises using as the microorganism Debaryomyces phaffii, ATCC 20499.
Claim 6
Dependent Claim
67 words
On the production of C 8 -C 18 dicarboxylic acids from straight chain hydrocarbons and monocarboxylic acids wherein the hydrocarbon and monocarboxylic acid and the resulting dicarboxylic acid have the same number of carbon atoms in the skeletal chain by aerobically cultivating the hydrocarbon and the monocarboxylic acid with a microorganism in a nutrient medium, the improvement which comprises using as the microorganism Debaryomyces phaffii, ATCC 20499.
Claim 7
Dependent Claim
72 words
In the production of C 8 -C 18 mono- and di-carboxylic acids from straight chain hydrocarbons wherein the hydrocarbon and the resulting acid have the same number of carbon atoms in the skeletal chain by growing a microorganism in a nutrient medium, separating the cell mass comprising the microorganism and allowing the cell mass to react aerobically with the hydrocarbon, the improvement which comprises using as the organism Debaryomyces phaffii, ATCC 20499.
Claim 8
Dependent Claim
72 words
In the production of C 8 -C 18 mono- and di-carboxylic acids from straight chain hydrocarbons wherein the hydrocarbon and the resulting acid have the same number of carbon atoms in the skeletal chain by growing a microorganism in a nutrient medium, separating the cell mass comprising the microorganism and allowing the cell mass to react aerobically with the hydrocarbon, the improvement which comprises using as the organism Debaryomyces phaffii, ATCC 20499.
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) | 1983-09-02 | 1984-03-03 | 1984-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-02 | 1988-03-03 | 1988-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-02 | 1992-03-03 | 1992-09-02 | $7700.00 | Window Closed / Lapsed |