CHEN; SENG-FENG
Patent Applications and Registrations
Patent applications and USPTO patent grants for CHEN; SENG-FENG.The latest application filed is for "method and apparatus for spontaneously initiating real-time interactive groups on network".
- CHEN; SENG-FENG - TAIPEI CITY TW
- Chen; Seng-Feng - Taipei TW
- Chen, Seng-Feng - Taipei Shien TW
- Chen, Seng-Feng - Taipei Hsien TW
| Patent | Date |
|---|---|
| Method And Apparatus For Spontaneously Initiating Real-time Interactive Groups On Network App 20180241580 - CHEN; SENG-FENG ; et al. | 2018-08-23 |
| One-way switch Grant 7,009,314 - Chen March 7, 2 | 2006-03-07 |
| Two-stage charging device Grant 6,853,165 - Chen February 8, 2 | 2005-02-08 |
| Charge-type voltage balancing device App 20040113586 - Chen, Seng-Feng | 2004-06-17 |
| Two-stage charging device App 20040108838 - Chen, Seng-Feng | 2004-06-10 |
| One-way switch App 20040080354 - Chen, Seng-Feng | 2004-04-29 |
| Heat dissipating device App 20040080910 - Chen, Seng-Feng | 2004-04-29 |
| Voltage regulator with pulse width modulation in dual frequencies Grant 6,713,995 - Chen March 30, 2 | 2004-03-30 |
| Voltage regulator with pulse width modulation in dual frequencies App 20030201758 - Chen, Seng-Feng | 2003-10-30 |
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