Chemistry: analytical and immunological testing – Involving producing or treating antigen or hapten – Producing labeled antigens
Reexamination Certificate
2005-10-12
2008-10-14
Le, Long V. (Department: 1641)
Chemistry: analytical and immunological testing
Involving producing or treating antigen or hapten
Producing labeled antigens
C548S405000, C536S026600
Reexamination Certificate
active
07435603
ABSTRACT:
The proteins in a biological sample that is sought to be analyzed for its protein composition by an electrophoretic or chromatographic procedure are coupled to a dye in an unusually efficient manner by combining the sample with a solid dry composition containing the dye, a buffering agent, and in preferred embodiments, a denaturing agent as well. The solid and dry form of the composition prevents the dye from deteriorating or decomposing, and the combination of components in the composition allows the dye to couple to the proteins in a relatively uniform manner with no overstaining of the protein when the composition and the sample are heated together and held at an elevated temperature for a short period of time.
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Olech Lee
Zhu Mingde
Bio-Rad Laboratories, Inc.
Foster Christine E.
Heines Henry
Le Long V.
Townsend and Townsend / and Crew LLP
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