Cheng; Chen Yuan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cheng; Chen Yuan.The latest application filed is for "safety socket".
- Cheng; Chen Yuan - Keelung TW
- CHENG; CHEN-YUAN - Keelung City TW
| Patent | Date |
|---|---|
| Safety socket to prevent electric shock Grant 11,316,298 - Ding , et al. April 26, 2 | 2022-04-26 |
| Safety socket Grant 10,985,490 - Ding , et al. April 20, 2 | 2021-04-20 |
| Safety socket with means to prevent electric shock and electrical discharge Grant 10,243,296 - Cheng | 2019-03-26 |
| Safety Socket App 20180198229 - CHENG; CHEN-YUAN | 2018-07-12 |
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