Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859606 | Method for detecting cations in a test sample utilizing chromogenic cryptahemispherands | Donald J. Cram, Eddy Chapoteau, Bronislaw P. Czech, Roger C. Helgeson, Anand Kumar +1 more | 1989-08-22 |
| 4808539 | Compounds, reagents and procedures for determining cations | Eddy Chapoteau, Bronislaw P. Czech, Koon-wah Leong, Anand Kumar | 1989-02-28 |