Process for the preparation of fatty acids
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United States of America Patent
Stats
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Mar 22, 2011
Grant Date -
Feb 12, 2009
app pub date -
Feb 2, 2006
filing date -
Feb 4, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process for the preparation of a material comprising conjugated isomers of a polyunsaturated fatty acid comprises: treating a first fatty acid mixture comprising saturated fatty acids, monounsaturated fatty acids and polyunsaturated fatty acids in the presence of ethanol to form (i) a solid fraction and (ii) a liquid fraction comprising a second fatty acid mixture, wherein the second fatty acid mixture has a higher molar ratio of total polyunsaturated fatty acids to total saturated and monounsaturated fatty acids than the first fatty acid mixture; separating the solid fraction and the liquid fraction; and subjecting the second fatty acid mixture or a derivative or reaction product thereof to treatment with a base in the presence of a solvent, to form conjugated isomers of at least some of the polyunsaturated fatty acids.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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STEPAN SPECIALTY PRODUCTS LLC | 1209 ORANGE STREET WILMINGTON DE 19801 |
International Classification(s)

- 2006 Application Filing Year
- C07B Class
- 43 Applications Filed
- 25 Patents Issued To-Date
- 58.14 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bhaggan, Krishnadath | Wormerveer, NL | 20 | 73 |
# of filed Patents : 20 Total Citations : 73 | |||
Cheng, Shuhong | Anqing, CN | 2 | 1 |
# of filed Patents : 2 Total Citations : 1 | |||
Guo, Zheng | Anqing, CN | 44 | 149 |
# of filed Patents : 44 Total Citations : 149 | |||
Schweitzer, Erik | Wormerveer, NL | 5 | 26 |
# of filed Patents : 5 Total Citations : 26 | |||
Yan, Youchun | Wormerveer, NL | 28 | 558 |
# of filed Patents : 28 Total Citations : 558 | |||
Zhang, Genwang | Anqing, CN | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- C07B Class
- 26.19 % this patent is cited more than
- 14 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Aug 26, 1991 | AS | ASSIGNMENT | free format text: MERGER;ASSIGNOR:HYBRID SYSTEMS INC., MD CORP.;REEL/FRAME:005841/0062 Owner name: HYBRID SYSTEMS, INC., DE CORP. Effective Date: Aug 06, 1991 free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HYBRID SYSTEMS INC. DE CORP;REEL/FRAME:005841/0068 Owner name: RECOGNITION EQUIPMENT INCORPORATED, DE CORP. Effective Date: Aug 26, 1991 |
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