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Patent applications and USPTO patent grants for Chang; Da-Kuang.The latest application filed is for "near vacuum fire retardant material reduces the noise and preserves heat to be used for ceiling and indoor compartment board".
Patent | Date |
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Near vacuum fire retardant material reduces the noise and preserves heat to be used for ceiling and indoor compartment board App 20200340239 - Chang; Da-Kuang | 2020-10-29 |
Near vacuum composite material can be quickly wrapped up on surface of pipes by zipping it up and used for various sandwiched la App 20200224814 - Chang; Da-Kuang | 2020-07-16 |
GX10q combination for CFL's fixture App 20060273730 - Chang; Da-Kuang | 2006-12-07 |
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