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| Entry Year | Patent category | Patent title | Date (Year/Month) | Patent owner |
|---|---|---|---|---|
| 102 | 新型專利 | 2013-04 | Jih-Hsing Chang | |
| 87 | 新式樣專利 | 改善土壤(污泥)鉛、銅含量之方法 | 2007-05 | Jih-Hsing Chang |
| 87 | 新式樣專利 | 一種清除土壤與地下水有機污染物之方法 | 2007-02 | Jih-Hsing Chang |
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