David W. Trott

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Fort Mill, SC, US

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Patents Grantslast 30 patents

Information Patent Grant
Open cell structure foamed cellulose acetate filters
- Patent number 4,282,890
- Issue date Aug 11, 1981
- Celanese Corporation
- Carl J. Howell
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for extruding plasticized open cell foamed cellulose acetat...
- Patent number 4,180,536
- Issue date Dec 25, 1979
- Celanese Corporation
- Carl J. Howell
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL