Mabel M. M. Chen

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Broomall, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Substituted urea compound containing 2,2,2-trichloro-1-hydroxyethyl...
- Patent number 4,324,910
- Issue date Apr 13, 1982
- Pennwalt Corporation
- Stanley R. Sandler
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Flame retardant polyol compositions and their preparation
- Patent number 4,302,340
- Issue date Nov 24, 1981
- Pennwalt Corporation
- Stanley R. Sandler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Phosphorus derivatives of 1,3-diethanolurea
- Patent number 4,299,782
- Issue date Nov 10, 1981
- Pennwalt Corporation
- Mabel M. M. Chen
- C07 - ORGANIC CHEMISTRY