F. Joseph Ehrhardt

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Haddonfield, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Backing sheet for surface covering
- Patent number 6,875,504
- Issue date Apr 5, 2005
- Congoleum Corporation
- James M. Malloy
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Semibleaching liquor for Kraft paper products
- Patent number 4,731,161
- Issue date Mar 15, 1988
- Union Camp Corporation
- F. Joseph Ehrhardt
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
Backing sheet for surface covering
- Publication number 20030109622
- Publication date Jun 12, 2003
- James M. Malloy
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...