Keng S. Chan

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Delayed rigid foam systems and applications in particular for selec...
- Patent number 5,103,910
- Issue date Apr 14, 1992
- Dowell Schlumberger Incorporated
- Keng S. Chan
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Delayed rigid foam systems and applications in particular for plugg...
- Patent number 5,086,840
- Issue date Feb 11, 1992
- Dowell Schlumberger Incorporated
- Arthur Soucemarianadin
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...