John A. Heitmann

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Raleigh, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for making dissolving pulp from paper products containing ha...
- Patent number 6,254,722
- Issue date Jul 3, 2001
- North Carolina State University
- Larry S. Jackson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of cleaning papermaking felts with enzymes
- Patent number 5,961,735
- Issue date Oct 5, 1999
- North Carolina State University
- John A. Heitmann
- B08 - CLEANING
Information Patent Grant
Deinking of xerographic printed wastepaper using long chain alcohol
- Patent number 5,500,082
- Issue date Mar 19, 1996
- North Carolina State University
- Hou-Min Chang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE