US5382346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biosensor and method of quantitative analysis using the same
Assignee: Arkray Inc
•
Filing: 1993-10-20
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Granted: 1995-01-17
•
Expires: 2013-10-20
Abstract
Abstract A biosensor which electrochemically detects a material which relates to a reaction of a specific compound in a liquid sample with a biologically active substance or its related substance, in which the biologically active material or an optionally used mediator is placed at a part which is remote from a position of an electrode which acts as electrochemical detector means, and optionally the biological active material or the mediator is covered with a polymer layer.
Inventors
- 👤 Harumi Uenoyama
- 👤 Hisashi Okuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:41
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/001; C12Q1/004; Y; Y10; Y10S; Y10S435/00; Y10S435/817
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
49 words
A biosensor which electrochemically detects a material which relates to a reaction of a specific compound in a liquid sample with a biologically active substance, wherein the biologically active material is placed at a part which is remote from a position of an electrode which-acts as electrochemical detector means.
Claim 2
Dependent Claim
49 words
A biosensor which electrochemically detects a material which relates to a reaction of a specific compound in a liquid sample with a biologically active substance, wherein the biologically active material is placed at a part which is remote from a position of an electrode which-acts as electrochemical detector means.
Claim 3
Dependent Claim
31 words
The biosensor according to claim 1, which comprises a mediator which is placed at a part which is remote from said position of said electrode together with said biologically active substance.
Claim 4
Dependent Claim
16 words
The biosensor according to claim 1, which comprises a mediator which is provided on said electrode.
Claim 5
Dependent Claim
17 words
The biosensor according to claim 1, wherein said biologically active substance is bound with a hydrophilic polymer.
Claim 6
Dependent Claim
18 words
The biosensor according to claim 3, wherein said mediator is covered with a layer of a hydrophilic polymer.
Claim 7
Dependent Claim
14 words
The biosensor according to claim 1, wherein said biologically active substance is an enzyme.
Claim 8
Dependent Claim
12 words
The biosensor according to claim 6, wherein said enzyme is an oxidoreductase.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-01-16 | 1998-07-18 | 1999-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-16 | 2002-07-18 | 2003-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-16 | 2006-07-18 | 2007-01-17 | $7700.00 | Window Closed / Lapsed |