Niels van der Werff

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The Hague, NL

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Patents Grantslast 30 patents

Information Patent Grant
Sealing composition
- Patent number 6,875,729
- Issue date Apr 5, 2005
- Halliburton Energy Services, Inc.
- Marco L. Verlaan
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Sealing composition
- Publication number 20030224946
- Publication date Dec 4, 2003
- Halliburton Energy Services, Inc.
- Marco L. Verlaan
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES