Fred Y. Kafka

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Parkersburg, WV, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for incorporating organic fibrous fillers in elastomers
- Patent number 5,205,972
- Issue date Apr 27, 1993
- E. I. Du Pont de Nemours and Company
- Fred Y. Kafka
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Precoagulation process for incorporating organic fibrous fillers
- Patent number 5,205,973
- Issue date Apr 27, 1993
- E. I. Du Pont de Nemours and Company
- Fred Y. Kafka
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Extrusion isolation of blends of rubber and asphalt
- Patent number 5,025,044
- Issue date Jun 18, 1991
- E. I. Du Pont de Nemours and Company
- Lance A. Christell
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for the manufacture of photosensitive materials having a lo...
- Patent number 4,970,037
- Issue date Nov 13, 1990
- E. I. Du Pont de Nemours and Company
- Fred Y. Kafka
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for removing chloroprene dimers from polychloroprene
- Patent number 4,943,402
- Issue date Jul 24, 1990
- E. I. Du Pont de Nemours and Company
- Fred Y. Kafka
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL