Patent US5006106A successfully refreshed from Google Patents.
US3654083A
Expired / Lapsed
US
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Preparation of stable water-soluble enzyme conjugates
Assignee: Organon NV
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Filing: 1969-08-01
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Granted: 1972-04-04
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Expires: 1989-08-01
Abstract
Abstract THE INVENTION RELATES TO THE PREPARATION OF NEW AND STABLE WATER-SOLUBLE ENXYME CONJUGATES. THEY CAN BE OBTAINED BY THE FORMATION OF COVALENT BONDS BETWEEN THE ENZYME AND A COMPOUND CONTAINING REACTIVE GROUPS IN THE PRESENCE OF ONE OR MORE AMINO ACIDS OR PEPTIDES OR MIXTURES THEREOF. THESE SOLUBLE CONJUGATES ARE OBTAINED IN A HIGH YIELD OR ACTIVITY AND EXHIBIT A GOOD STABILITY AGAINST THERMIC DENATURATION. FURTHER THEY ARE STABLE IN A PH RANGE WHICH IS WIDER THAN THAT OF THE ORIGINAL ENZYME.
Inventors
- 👤 Huibert Cornelis Theus Moelker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38672; C12; C12N; C12N11/00; C12N11/02; C12N11/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |