| K042520 | VITROS CHEMISTRY PRODUCTS CAFFN REAGENT KIT AND TDM PERFORMANCE VERIFIERS I, II AND III | Ortho-Clinical Diagnostics, Inc. | 2004-11-30 |
| K042407 | EMIT CAFFEINE ASSAY | Dade Behring, Inc. | 2004-10-28 |
| K020740 | ROCHE ONLINE THEOPHYLLINE | Roche Diagnostics Corp. | 2002-04-16 |
| K011771 | RANDOX THEOPHYLLINE | Randox Laboratories, Ltd. | 2002-01-17 |
| K013272 | ACS: 180 AND ADVIA CENTAUR THEOPHYLLINE 2 ASSAY | Bayer Corp. | 2001-10-25 |
| K011166 | MODIFICATION TO EMIT 2000 THEOPHYLLINE ASSAY, MODEL OSR 4P229 | Syva Co., Dade Behring, Inc. | 2001-05-10 |
| K993029 | ABBOTT AEROSET THEOPHYLLINE ASSAY AND CALIBRATORS; MODELS 1E09 AND 6E89 | Syva Co. | 2000-01-27 |
| K973583 | ACE THEOPHYLLINE REAGENT, THEO CALIBRATORS | Schiapparelli Biosystems, Inc. | 1997-11-12 |
| K972495 | ACCUMETER THEOPHYLLINE TEST | Chemtrak, Inc. | 1997-10-10 |
| K961462 | CEDIA THEOPHYLLINE ASSAY | Boehringer Mannheim Corp. | 1996-06-27 |
| K954569 | IMMULITE THEOPHYLLINE | Diagnostic Products Corp. | 1995-11-13 |
| K952596 | THEOPHYLLINE ENZYME IMMUNOASSAY | Diagnostic Reagents, Inc. | 1995-08-11 |
| K943979 | IL TEST THEOPHYLLINE | Instrumentation Laboratory CO | 1995-01-18 |
| K932685 | PARAMAX(R) THEOPHYLLINE REAGENT AND CALIBRATORS | Baxter Diagnostics, Inc. | 1993-09-24 |
| K933258 | VIDAS THEOPHYLLINE(THEO) | Biomerieux Vitek, Inc. | 1993-08-16 |