Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9845328 | Method for manufacturing of vardenafil and its salts | Roman Szramka, Jerzy DRYGAS, Marcin Szulc | 2017-12-19 |
| 8524912 | Process for the preparation of [1-hydroxy-2-(1H-imidazol-1-yl)- ethylidene]bisphosphonic acid | Leszek Dembkowski, Mariusz Krzyzanowski, Roman Szramka, Zdzislaw Roznerski, Daniel Zyla +2 more | 2013-09-03 |
| 8450488 | Process for the preparation of [1-hydroxy-2-(3-pyridinyl)ethylidene] bisphosphonic acid and hemipentahydrate monosodium salt thereof | Leszek Dembkowski, Janusz Rachon, Slawomir Makowiec, Witold Przychodzeń, Dariusz Witt | 2013-05-28 |
| 5515021 | Switching battery charger for reducing electromagnetic emussions having separately-mounted circuit boards | — | 1996-05-07 |
| 5293145 | Switch battery charger with reduced electromagnetic emission | — | 1994-03-08 |