Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5087359 | Quaternized PEI silica solid supports for chromatography | Sunil V. Kakodkar | 1992-02-11 |
| 5066395 | N-acylated derivatives of polyethyleneimine bonded phase silica products | David R. Nau | 1991-11-19 |
| 4721573 | Use of sulfonic derivatives of acylated polyethyleneimine bonded phase silica products | David R. Nau | 1988-01-26 |
| 4680120 | Bonded phase of silica and carboalkoxyalkyl silanes for solid phase extraction | Joseph Martin Patterson | 1987-07-14 |
| 4680121 | Bonded phase of silica for solid phase extraction | Joseph Martin Patterson | 1987-07-14 |
| 4661248 | Sulfonic derivatives of acylated polyethyleneimine bonded phase silica products | David R. Nau | 1987-04-28 |
| 4650784 | Bonded phase of silica for solid phase extraction | Joseph Martin Patterson | 1987-03-17 |
| 4640909 | Bonded phase of silica and carboalkoxyalkyl silanes for solid phase extraction | Joseph Martin Patterson | 1987-02-03 |
| 4551245 | Acylated polyethylenimine bound chromatographic packing | Michael Henry | 1985-11-05 |
| 4540486 | Polyethylenimine bound chromatographic packing | — | 1985-09-10 |
| 4523997 | Affinity chromatography matrix with built-in reaction indicator | Laura J. Crane | 1985-06-18 |
| 4522724 | Diazonium affinity matrixes | — | 1985-06-11 |