Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4980142 | Preparation of phosphorous acid | Helena Twardowska, Slawomir M. Cybulski | 1990-12-25 |
| 4853096 | Production of chlorine dioxide in an electrolytic cell | Marek Lipsztajn, Zbigniew Twardowski | 1989-08-01 |
| 4683039 | Membrane pervaporation process | Zbigniew Twardowski | 1987-07-28 |
| 4276273 | Production of sodium polyphosphates | — | 1981-06-30 |
| 4188367 | Manufacture of red phosphorus | — | 1980-02-12 |