Steven H. Greenfield

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Duluth, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods of embossing materials
- Patent number 6,368,539
- Issue date Apr 9, 2002
- Potlatch Corporation
- Steven H. Greenfield
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Embossed paper
- Patent number D453421
- Issue date Feb 12, 2002
- Potlatch Corporation
- Steven H. Greenfield
- D05 - Textile or paper yard goods
Information Patent Grant
Paper towel
- Patent number D441541
- Issue date May 8, 2001
- Potlatch Corporation
- Steven H. Greenfield
- D05 - Textile or paper yard goods
Information Patent Grant
Emollient compositions and methods of application to a substrate by...
- Patent number 5,980,919
- Issue date Nov 9, 1999
- Potlatch Corporation
- Steven H. Greenfield
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE