Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8715942 | Methods for the detection of glycated hemoglobin | Richard Mark Edwards, Chester Swirski, Wolodymyr Zazulak | 2014-05-06 |
| 6323036 | Reagents and methods for releasing and measuring lead ions from biological matrices | Bronislaw P. Czech, Jonathan Craine | 2001-11-27 |
| 5891736 | Reagents and methods for releasing and measuring lead ions from biological matrices | Bronislaw P. Czech, Jonathan Craine | 1999-04-06 |
| 5814521 | Metal ion determination by sandwich aggregation assay | Jonathan Craine, Bronislaw P. Czech, Anand Kumar, Koon-wah Leong | 1998-09-29 |
| 5262330 | Colorimetric methods and reagents for the assay of calcium in a test sample | Bronislaw P. Czech, Wolodymyr Zazulak | 1993-11-16 |
| 5187103 | Colorimetric method and reagent for the assay of lithium in a test sample | Bronislaw P. Czech, Anand Kumar | 1993-02-16 |
| 5177221 | Chromogenic hemispherands and their preparation | Donald J. Cram, Bronislaw P. Czech, Carl R. Gebauer, Roger C. Helgeson, Anand Kumar +1 more | 1993-01-05 |
| 5145787 | Method for determining the concentration of cations in a sample | Bronislaw P. Czech, Carl R. Gebauer, Koon-wah Leong, Anand Kumar | 1992-09-08 |
| 5096831 | Reagents for determining cations | Bronislaw P. Czech, Carl R. Gebauer, Koon-wah Leong, Anand Kumar | 1992-03-17 |
| 5073501 | Method for determining the concentration of cations in a sample | Bronislaw P. Czech, Carl R. Gebauer, Koon-wah Leong, Anand Kumar | 1991-12-17 |
| 5045475 | Reagent for determining cations | Bronislaw P. Czech, Carl R. Gebauer, Koon-wah Leong, Anand Kumar | 1991-09-03 |
| 5011924 | Chromogenic cryptahemispherands and their preparation | Donald J. Cram, Bronislaw P. Czech, Carl R. Gebauer, Roger C. Helgeson, Anand Kumar +1 more | 1991-04-30 |
| 4994395 | Chromogenic cryptand reagents and methods for determining cation concentrations in test samples containing interfering cations | Bronislaw P. Czech, Carl R. Gebauer, Koon-wah Leong, Anand Kumar | 1991-02-19 |
| 4992381 | Method of detecting electrolytes in an aqueous test sample using chromogenic hemispherands and test device therefor | Donald J. Cram, Bronislaw P. Czech, Carl R. Gebauer, Roger C. Helgeson, Anand Kumar +1 more | 1991-02-12 |
| 4859606 | Method for detecting cations in a test sample utilizing chromogenic cryptahemispherands | Donald J. Cram, Bronislaw P. Czech, Carl R. Gebauer, Roger C. Helgeson, Anand Kumar +1 more | 1989-08-22 |
| 4810351 | Carbonate selective membrane and electrode | W. James Scott | 1989-03-07 |
| 4808539 | Compounds, reagents and procedures for determining cations | Bronislaw P. Czech, Carl R. Gebauer, Koon-wah Leong, Anand Kumar | 1989-02-28 |