Walter S. Ropp

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Hockessin, DE, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of preparing hydroxyethyl ethers of cellulose
- Patent number 4,298,728
- Issue date Nov 3, 1981
- Hercules Incorporated
- Thomas G. Majewicz
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing spherical particles or crystalline polymers
- Patent number 4,254,207
- Issue date Mar 3, 1981
- Hercules Incorporated
- Leo M. Landoll
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...