Douglas H. Angel

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Concord, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Roll for paper-making machine
- Patent number 6,623,601
- Issue date Sep 23, 2003
- Voith Sulzer Paper Technology North America, Inc.
- Edwin X. Graf
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of making a roll for paper-making machine
- Patent number 6,339,883
- Issue date Jan 22, 2002
- Voith Sulzer Paper Technology North America, Inc.
- Edwin X. Graf
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Roll with composite material roll shell and head in a paper-making...
- Patent number 6,299,733
- Issue date Oct 9, 2001
- Voith Sulzer Paper Technology North America, Inc.
- Edwin X. Graf
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
Roll for paper-making machine
- Publication number 20020059727
- Publication date May 23, 2002
- Voith Sulzer Paper Technology North America, Inc.
- Edwin X. Graf
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL