Paul M. Scharfenberg

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Hurst, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing corrugated paperboard product using a foame...
- Patent number 4,561,918
- Issue date Dec 31, 1985
- Findley Adhesives, Inc.
- Paul M. Scharfenberg
- B32 - LAYERED PRODUCTS
Information Patent Grant
Method of manufacturing dual arch corrugated paperboard product
- Patent number 4,495,011
- Issue date Jan 22, 1985
- Findley Adhesives, Inc.
- Paul M. Scharfenberg
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD