Xu Hengchang

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Patents Grantslast 30 patents

Information Patent Grant
Glass fillers for composites
- Patent number 9,642,781
- Issue date May 9, 2017
- Heraeus Kulzer GmbH
- Wenling Yang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Inorganic filler material with retention properties, and method and...
- Patent number 5,707,440
- Issue date Jan 13, 1998
- Heraeus Kulzer GmbH
- Xu Hengchang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Glass Fillers for Composites
- Publication number 20160081886
- Publication date Mar 24, 2016
- Heraeus Kulzer GmbH
- Wenling Yang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE