Chemistry: analytical and immunological testing – Involving producing or treating antigen or hapten – Producing labeled antigens
Reexamination Certificate
2011-01-25
2011-01-25
Haq, Shafiqul (Department: 1641)
Chemistry: analytical and immunological testing
Involving producing or treating antigen or hapten
Producing labeled antigens
C436S536000, C436S800000, C435S007100, C435S007930, C435S968000, C546S104000
Reexamination Certificate
active
07875467
ABSTRACT:
Chemiluminescent acridinium compounds are used in homogeneous assays to determine the concentration of an analyte in a sample without strong acid or strong base treatment. The chemiluminescent acridinium compounds include acridinium esters with electron donating functional groups at the C2 and/or C7 position on the acridinium nucleus to inhibit pseudo-base formation, or acridinium sulfonamides with or without electron donating functional groups at the C2 and/or C7 position on the acridinium nucleus.
REFERENCES:
patent: 5468646 (1995-11-01), Mattingly et al.
patent: 5593845 (1997-01-01), Akhavan-Tafti et al.
patent: WO 98/02421 (1998-01-01), None
Jiang Qingping
Law Say-Jong
Lukinsky Hana
Natrajan Anand A.
Schroeder Hartmut
Haq Shafiqul
Siemens Healthcare Diagnostics Inc.
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