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Patent applications and USPTO patent grants for Chang; Yen-Hua.The latest application filed is for "method of producing artificial stones with aluminum residues".
Patent | Date |
---|---|
Method for producing a refractory material from aluminum residues Grant 8,540,910 - Yang , et al. September 24, 2 | 2013-09-24 |
Method of Producing Artificial Stones with Aluminum residues App 20130049248 - Yang; Sheng-Fu ;   et al. | 2013-02-28 |
Method for Producing a Refractory Material from Aluminum residues App 20120289396 - Yang; Sheng -Fu ;   et al. | 2012-11-15 |
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