Irena Penczek

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Warsaw, PL

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Patents Grantslast 30 patents

Information Patent Grant
Compositions of polyphenylene oxide or of mixtures of polyphenylene...
- Patent number 4,687,799
- Issue date Aug 18, 1987
- Enichem, S.p.A.
- Wanda Kosinska
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of polyphenylene-oxide
- Patent number 4,607,085
- Issue date Aug 19, 1986
- Enichimica S.p.A.
- Irena Penczek
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing alkylation catalysts
- Patent number 4,568,662
- Issue date Feb 4, 1986
- Enichimica S.p.A.
- Jan Bialy
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polyphenylene oxide
- Patent number 4,556,699
- Issue date Dec 3, 1985
- Enichimica S.p.A.
- Jan Bialy
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...