Patent US4848641A successfully refreshed from Google Patents.
Patent US5876997A successfully refreshed from Google Patents.
US5876997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phytase
Assignee: BASF Enzymes LLC
•
Filing: 1997-08-13
•
Granted: 1999-03-02
•
Expires: 2017-08-13
Abstract
Abstract The invention provides a purified phytate enzyme derived from Escherichia coli B. The enzyme has a molecular weight of about 47.1 kilodaltons and has phytase activity (SEQ ID NO:2). The enzyme can be produced from native or recombinant host cells and can be used to aid in the digestion of phytate where desired. In particular, the phytase of the present invention can be used in animal feed.
Inventors
- 👤 Keith Kretz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:04
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/14; C12N9/16; A; A23; A23K; A23K20/00; A23K20/10; A23K20/189; A23L; A23L29/00; A23L29/06; A23L5/00; A23L5/20; A23L5/25; A61; A61P; A61P43/00; C12Y; C12Y301/00; C12Y301/03; C12Y301/03026
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
23 words
An isolated polynucleotide selected from the group consisting of: a) SEQ ID NO:1; b) SEQ ID NO:1 wherein T is substituted with U.
Claim 2
Dependent Claim
23 words
An isolated polynucleotide selected from the group consisting of: a) SEQ ID NO:1; b) SEQ ID NO:1 wherein T is substituted with U.
Claim 3
Dependent Claim
15 words
An isolated polynucleotide encoding a phytase having the amino acid sequence of SEQ ID NO:2.
Claim 4
Dependent Claim
15 words
An isolated polynucleotide encoding a phytase having the amino acid sequence of SEQ ID NO:2.
Claim 5
Dependent Claim
13 words
The polynucleotide of claim 2, wherein the polynucleotide is isolated from a prokaryote.
Claim 6
Dependent Claim
9 words
An expression vector comprising the polynucleotide of claim 2.
Claim 7
Dependent Claim
11 words
The vector of claim 4, wherein the vector is a plasmid.
Claim 8
Dependent Claim
10 words
The vector of claim 4, wherein the vector is virus-derived.
Claim 9
Dependent Claim
10 words
A host cell transformed with the vector of claim 4.
Claim 10
Dependent Claim
11 words
The host cell of claim 7, wherein the cell is prokaryotic.
Claim 11
Dependent Claim
32 words
A method for producing an enzyme comprising growing a host cell of claim 7 under conditions which allow the expression of the enzyme and isolating the enzyme encoded by the nucleic acid.
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) | 2002-03-01 | 2002-08-31 | 2003-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-01 | 2006-08-31 | 2007-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-01 | 2010-08-31 | 2011-03-02 | $7700.00 | Window Closed / Lapsed |