Douglas D. Roth

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Matthews, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Melt-spinning apparatus for polyester filaments
- Patent number 4,605,364
- Issue date Aug 12, 1986
- Celanese Corporation
- Douglas D. Roth
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Method for melt spinning polyester filaments
- Patent number 4,514,350
- Issue date Apr 30, 1985
- Celanese Corporation
- Douglas D. Roth
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING