John S. Letinski

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Metuchen, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Moldable polybenzimidazole filaments and process for producing mold...
- Patent number 4,810,730
- Issue date Mar 7, 1989
- Hoechst Celanese Corp.
- John S. Letinski
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of molded polybenzimidazole articles and...
- Patent number 4,717,619
- Issue date Jan 5, 1988
- Hoechst Celanese Corporation
- John S. Letinski
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for the preparation of polybenzimidazole foams
- Patent number 4,681,716
- Issue date Jul 21, 1987
- Celanese Corporation
- John S. Letinski
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...