Chang; Yen Jen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Yen Jen.The latest application filed is for "heater control circuitry for vaporizer device".
- Chang; Yen Jen - Taipei TW
- Chang; Yen Jen - Kaohsiung TW
- CHANG; Yen Jen - Kaohsiung City TW
- Chang; Yen-Jen - Yuan-Lin Chen Chang-Hua Hsien TW
- Chang; Yen-Jen - Chan-Hua Hsien TW
- Chang; Yen-Jen - Kao-Hsiung TW
- Chang, Yen-Jen - Kao-Hsiung City TW
- Chang, Yen-Jen - KaoShiung TW
| Patent | Date |
|---|---|
| Vaporizer Cartridge App 20190364957 - Fu; Joshua ; et al. | 2019-12-05 |
| Vaporizer Device Body App 20190364968 - Fu; Joshua ; et al. | 2019-12-05 |
| Vaporizer Device With Differential Pressure Sensor App 20190364969 - Fu; Joshua ; et al. | 2019-12-05 |
| Identification Of A Cartridge For A Vaporizer Device App 20190369127 - Fu; Joshua ; et al. | 2019-12-05 |
| Heater Control Circuitry For Vaporizer Device App 20190373679 - Fu; Joshua ; et al. | 2019-12-05 |
| Fundus examination device capable of aiding in gaze fixation and image focusing Grant 8,777,411 - Tsai , et al. July 15, 2 | 2014-07-15 |
| Fundus Examination Device Capable Of Aiding In Gaze Fixation And Image Focusing App 20130286346 - TSAI; Che Liang ; et al. | 2013-10-31 |
| Gaze-fixation Aiding And Image Focusing Device App 20130250236 - TSAI; Che Liang ; et al. | 2013-09-26 |
| Disc player Grant 7,467,397 - Chang December 16, 2 | 2008-12-16 |
| Low-power SRAM memory cell Grant 7,345,909 - Chang , et al. March 18, 2 | 2008-03-18 |
| Low-power SRAM memory cell App 20070297249 - Chang; Yen-Jen ; et al. | 2007-12-27 |
| Position adjustment and damper mechanism for an optical disk drive Grant 7,237,246 - Chang June 26, 2 | 2007-06-26 |
| Disc ejection device Grant 6,922,837 - Chang July 26, 2 | 2005-07-26 |
| Optical drive App 20050108737 - Chang, Yen-Jen | 2005-05-19 |
| Disc player App 20050108739 - Chang, Yen-Jen | 2005-05-19 |
| Position Adjustment Mechanism And Method Thereof App 20040199930 - Chang, Yen-Jen | 2004-10-07 |
| Disc ejection device App 20040062173 - Chang, Yen-Jen | 2004-04-01 |
| Optical storage carrier player with an observing window App 20020136138 - Chang, Yen-Jen ; et al. | 2002-09-26 |
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