U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method of assay normalized with non-antigen calibrator

Patent 5312729 Issued on May 17, 1994. Estimated Expiration Date: Icon_subject May 17, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Double receptor fluorescent immunoassay
Patent #: 3998943
Issued on: 12/21/1976
Inventor: Ullman

Preferential signal production on a surface in immunoassays
Patent #: 4299916
Issued on: 11/10/1981
Inventor: Litman ,   et al.

Calibration device for heterogeneous immunoassay Patent #: 4791056
Issued on: 12/13/1988
Inventor: Sizto ,   et al.

Inventors

Assignee

Application

No. 460861 filed on 03/06/1990

US Classes:

435/7.9, Assay in which an enzyme present is a label435/7.92, Heterogeneous or solid phase assay system (e.g., ELISA, etc.)435/7.93, Competitive assay435/7.94, Sandwich assay435/7.95, Indirect assay435/975, KIT436/518, INVOLVING AN INSOLUBLE CARRIER FOR IMMOBILIZING IMMUNOCHEMICALS436/815, TEST FOR NAMED COMPOUND OR CLASS OF COMPOUNDS436/817Steroids or hormones

Examiners

Primary: Scheiner, Toni R.

Attorney, Agent or Firm

Foreign Patent References

  • 0201079 EP. 12/22/1986

International Classes

G01N 033/53
G01N 033/537
G01N 033/543

Foreign Application Priority Data

1988-05-24 GB

Abstract

The present invention relates to assay techniques for detection of ligands in solution and to means for putting such techniques into effect. In particular it relates to an improved assay technique which provides a liquid calibrator for use in standard assays in circumstances where the ligand itself is rare, expensive, or difficult to prepare in a sufficiently pure or quantifiable form.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
 
Sign InRegister
Username  
Password   
forgot password?