Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032526 | Method for the colorimetric determination of sulfonates in aqueous systems | Jack E. Fink | 1991-07-16 |
| 4894346 | Method for the colorimetric determination of polycarboxylates in aqueous systems | Jack E. Fink | 1990-01-16 |