Chemistry: analytical and immunological testing – Involving diffusion or migration of antigen or antibody
Reexamination Certificate
2006-09-08
2009-08-04
Nguyen, Bao-Thuy L (Department: 1641)
Chemistry: analytical and immunological testing
Involving diffusion or migration of antigen or antibody
C436S020000, C436S518000, C436S525000, C436S810000, C436S816000, C436S901000, C435S007100, C435S007910, C435S007920, C435S007930, C435S970000, C435S973000, C435S975000
Reexamination Certificate
active
07569396
ABSTRACT:
Methods, compositions, and apparatus for detecting the presence of caffeine in a liquid sample are provided. In certain embodiments, an internally referenced competitive assay allows a very precise determination of a threshold value of caffeine for use in semiquantitative types of ligand-receptor assays. By using a detection means that participates in two assays, sensitivity is doubled in the maximum sensitivity range and the range can be adjusted to match the predicted concentration range of an analyte. This format and the materials described herein allow the assay to complete within three minutes. In addition, this format accommodates common attributes of liquid samples for detecting caffeine, such as the inclusion of milk or sugar in a coffee-type beverage.
REFERENCES:
patent: 3646346 (1972-02-01), Catt
patent: 3857931 (1974-12-01), Hager
patent: 3996345 (1976-12-01), Ullman et al.
patent: 4062733 (1977-12-01), Edwards et al.
patent: 4104029 (1978-08-01), Maier, Jr.
patent: 4168146 (1979-09-01), Grubb et al.
patent: 4181636 (1980-01-01), Fischer
patent: 4264766 (1981-04-01), Fischer
patent: 4313734 (1982-02-01), Leuvering
patent: 4366241 (1982-12-01), Tom et al.
patent: 4373932 (1983-02-01), Gribnau et al.
patent: 4376110 (1983-03-01), David et al.
patent: 4703017 (1987-10-01), Campbell et al.
patent: 4740468 (1988-04-01), Weng et al.
patent: 4775636 (1988-10-01), Moeremans et al.
patent: 4837168 (1989-06-01), de Jaeger et al.
patent: 4843000 (1989-06-01), Litman et al.
patent: 4849338 (1989-07-01), Litman et al.
patent: 4855240 (1989-08-01), Rosenstein et al.
patent: 4861711 (1989-08-01), Friesen et al.
patent: 4916056 (1990-04-01), Brown, III et al.
patent: 4954452 (1990-09-01), Yost et al.
patent: 5120643 (1992-06-01), Ching et al.
patent: 5141875 (1992-08-01), Kelton et al.
patent: 5212060 (1993-05-01), Maddox
patent: 5229073 (1993-07-01), Luo et al.
patent: 5252459 (1993-10-01), Tarcha et al.
patent: 5451504 (1995-09-01), Fitzpatrick et al.
patent: 5451507 (1995-09-01), Skold et al.
patent: 5559041 (1996-09-01), Kang et al.
patent: 5591645 (1997-01-01), Rosenstein
patent: 5610072 (1997-03-01), Scherl et al.
patent: 5798273 (1998-08-01), Shuler et al.
patent: 5824554 (1998-10-01), McKay
patent: 6001658 (1999-12-01), Fredrickson
patent: 6103536 (2000-08-01), Geisberg
patent: 6153147 (2000-11-01), Craig
patent: 6287875 (2001-09-01), Geisberg
patent: 6368875 (2002-04-01), Geisberg
patent: 6461873 (2002-10-01), Catania et al.
patent: 6500665 (2002-12-01), Deegan
patent: 6557484 (2003-05-01), Engelman
patent: 6649418 (2003-11-01), Geisberg
patent: 6699722 (2004-03-01), Bauer et al.
patent: 6797481 (2004-09-01), Ullman et al.
patent: 0291194 (1988-11-01), None
patent: 0296724 (1988-12-01), None
patent: 0323605 (1989-07-01), None
patent: WO 92/12428 (1992-07-01), None
patent: WO 94/01774 (1994-01-01), None
patent: WO 95/01775 (1995-01-01), None
patent: WO 96/27795 (1996-09-01), None
Geisberg Mark S.
Graham Anaflor Q.
Hathaway Carralee
Fenwick & West LLP
Nguyen Bao-Thuy L
PurpleCow LLC
LandOfFree
Caffeine detection using internally referenced competitive... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Caffeine detection using internally referenced competitive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Caffeine detection using internally referenced competitive... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4063687