Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5216048 | Emulsion-type adhesive compositions | Pawan K. Agarwal, Allen C. Werner, Donald N. Schulz | 1993-06-01 |
| 4822847 | Method of increasing viscosity of an aqueous solution with a sulfo betaine polymer | Donald N. Schulz | 1989-04-18 |
| 4708998 | Cyclopolymerizable sulfobetaine monomer | Donald N. Schulz | 1987-11-24 |
| 4585846 | Cyclopolymerizable sulfobetaine monomer | Donald N. Schulz | 1986-04-29 |
| 4560710 | Drag reduction agent | Donald N. Schulz, Dennis G. Peiffer, Ralph M. Kowalik | 1985-12-24 |