Patent US3770588A successfully refreshed from Google Patents.
US3770588A
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Storage stabilization of carrier bound enzymes
Assignee: Wyeth Holdings LLC
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Filing: 1972-10-02
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Granted: 1973-11-06
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Expires: 1992-10-02
Abstract
Abstract A method for maintaining the catalytic activity of a hydrophilic, catalytically active carrier bound enzyme material which comprises freeze-drying the material from a solution of the substrate which is normally converted to its conversion product by the bound enzyme.
Inventors
- 👤 P Forgione
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:56
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/003; B01J31/02; B01J31/06; B01J31/40; B01J31/4007; B01J37/00; B01J37/32; C; C12; C12N; C12N11/00; C12N11/02; C12N11/08; C12N11/082; C12N11/087; C12N9/00; C12N9/96; B01J31/16; B01J31/165; B01J31/1658
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
13 words
A method according to claim 1 wherein said polymer is an aldehyde polymer.
Claim 2
Dependent Claim
13 words
A method according to claim 1 wherein said polymer is a ketone polymer.
Claim 3
Dependent Claim
13 words
A method according to claim 2 wherein said polymer is an acrolein polymer.
Claim 4
Dependent Claim
11 words
A method according to claim 1 wherein said enzyme is invertase.
Claim 5
Dependent Claim
11 words
A method according to claim 2 wherein said enzyme is invertase.
Claim 6
Dependent Claim
16 words
A method according to claim 2 wherein said enzyme is invertase and said polymer is polyacrolein.
Claim 7
Dependent Claim
36 words
A freeze-dried mixture of (1) a hydrophilic polymer having a catalytically active enzyme bound thereto and (2) a substrate which is normally converted to its conversion product by said bound enzyme produced according to claim 1.
Claim 8
Dependent Claim
13 words
A product according to claim 8 wherein said polymer is an aldehyde polymer.
Claim 9
Dependent Claim
13 words
A product according to claim 8 wherein said polymer is a ketone polymer.
Claim 10
Dependent Claim
13 words
A product according to claim 8 wherein said polymer is an acrolein polymer.
Claim 11
Dependent Claim
11 words
A product according to claim 8 wherein said enzyme is invertase.
Claim 12
Dependent Claim
16 words
A product according to claim 8 wherein said enzyme is invertase and said polymer is polyacrolein.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |