Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5502016 | Method to treat an ion-exchanger catalyst for the process of bisphenol-A synthesis | Andrzej Krueger, Jo/ zef Ko t, Antoni Korek, Wojciech Balcerowiak, Jacek Hetper +6 more | 1996-03-26 |
| 5470809 | Method to treat an ion-exchanger catalyst for the process to synthesize alkylphenols | Andrzej Krueger, Jozef Ko t, Bogus aw Tkacz, Tatiana Pers, Teresa Rdesinska-Cwik +5 more | 1995-11-28 |
| 5198591 | Method to manufacture bisphenol A | Jozef Kolt, Jerzy Marszycki, Eugeniusz Zajac, Teodor Bek, Zbigniew Swiderski +3 more | 1993-03-30 |
| 4906789 | Methods for bisphenol A production | Edward Grzywa, Jo Kolt, Adam Mazur, Jerzy Marszycki, Eugeniusz Zajac +5 more | 1990-03-06 |
| 4301305 | Continuous process for preparation of dian | Jozef Kolt, Jerzy Czyz, Edward Grzywa, Anna Niezgoda, Kazimierz Terelak | 1981-11-17 |