US4463093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for isomerizing L-glucose to L-fructose
Assignee: Stabra AG
•
Filing: 1982-06-30
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Granted: 1984-07-31
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Expires: 2002-06-30
Abstract
Abstract Process for preparing L-fructose from L-glucose by contacting L-glucose with xylose isomerase produced by a microorganism of the genus Candida.
Inventors
- 👤 Robert O. Horwath
- 👤 William J. Colonna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:55
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/24; C12N; C12N1/00; C12N1/14; C12N1/16; C12N1/165; C12N9/00; C12N9/90; C12N9/92; C12R; C12R2001/00; C12R2001/645; C12R2001/72; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/921
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
25 words
A process for isomerizing L-glucose to L-fructose which comprises contacting L-glucose with xylose isomerase of low stereospecificity produced by a microorganism of the genus Candida.
Claim 2
Dependent Claim
25 words
A process for isomerizing L-glucose to L-fructose which comprises contacting L-glucose with xylose isomerase of low stereospecificity produced by a microorganism of the genus Candida.
Claim 3
Dependent Claim
12 words
A process according to claim 1, wherein the microorganism is Candida utilis.
References Cited (Backward Citations)
US2950228A
Cited
US3689362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |