Trademark applications and grants for Xu Weihong. Xu Weihong has 8 trademark applications. The latest application filed is for "VASUEN"
Patent Application | Date |
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LIGHT BULB WITH A SYMMETRICAL LED FILAMENT 20200168774 - 16/695212 JIANG; TAO ;   et al. | 2020-05-28 |
LED LIGHT BULB WITH SPECTRAL DISTRIBUTION OF NATURAL LIGHT 20200098955 - 16/695223 JIANG; TAO ;   et al. | 2020-03-26 |
LED LIGHT BULB WITH CONDUCTIVE SECTIONS AND EXPOSED WIRES 20200098954 - 16/695217 JIANG; TAO ;   et al. | 2020-03-26 |
LARGE ANGLE ILLUMINATED LED FILAMENT LIGHT BULB 20200066949 - 16/666441 JIANG; TAO ;   et al. | 2020-02-27 |
UNIFORMLY ILLUMINATED LED FILAMENT LIGHT BULB 20200066948 - 16/666437 JIANG; TAO ;   et al. | 2020-02-27 |
LED light bulb having filament with tube light conversion layer 11,121,293 - 16/595,401 Jiang , et al. September 14, 2 | 2021-09-14 |
LED light bulb having filament with being partially coated by light conversion layer 11,121,292 - 16/576,802 Jiang , et al. September 14, 2 | 2021-09-14 |
LED light bulb having filament with conductor partly overlapping with LED chip 10,978,624 - 16/595,385 Jiang , et al. April 13, 2 | 2021-04-13 |
LED light bulb having filament with conductive section providing with rivet structure 10,944,028 - 16/576,810 Jiang , et al. March 9, 2 | 2021-03-09 |
LED light bulb having filament with layered light conversion layer 10,873,012 - 16/666,432 Jiang , et al. December 22, 2 | 2020-12-22 |
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