Choi; Woongyong
Patent Applications and Registrations
Patent applications and USPTO patent grants for Choi; Woongyong.The latest application filed is for "toner refill cartridge with automatic refilling structure".
- Choi; Woongyong - Yongin-si KR
- Choi; Woongyong - Suwon KR
- Choi; Woongyong - Gyeonggi-do KR
- Choi; Woongyong - Seongnam-si KR
| Patent | Date |
|---|---|
| Structure to refill toner to development cartridge mounted in main body Grant 11,366,407 - Cho , et al. June 21, 2 | 2022-06-21 |
| Authentication mechanisms Grant 11,364,725 - Moon , et al. June 21, 2 | 2022-06-21 |
| Toner Refill Cartridge With Automatic Refilling Structure App 20220057729 - Choi; Woongyong ; et al. | 2022-02-24 |
| Shutter structure for toner refill cartridge Grant 11,231,662 - Choi , et al. January 25, 2 | 2022-01-25 |
| Structure for selectively locking toner inlet shutter of toner refill portion Grant 11,209,754 - Lee , et al. December 28, 2 | 2021-12-28 |
| Dispensers with plungers Grant 11,209,747 - Moon , et al. December 28, 2 | 2021-12-28 |
| Plunger locking structure in syringe type toner refill cartridge Grant 11,204,568 - Ahn , et al. December 21, 2 | 2021-12-21 |
| Shutter Structure For Toner Refill Cartridge App 20210232062 - Choi; Woongyong ; et al. | 2021-07-29 |
| Structure For Refilling Toner Into Development Cartridge Mounted In Main Body App 20210232061 - CHO; Yong-Kwan ; et al. | 2021-07-29 |
| Dispensers With Plungers App 20210132522 - Moon; Jiwon ; et al. | 2021-05-06 |
| Plunger Locking Structure In Syringe Type Toner Refill Cartridge App 20210116838 - AHN; Yongnam ; et al. | 2021-04-22 |
| Authentication Mechanisms App 20210094304 - MOON; Jiwon ; et al. | 2021-04-01 |
| Structure For Selectively Locking Toner Inlet Shutter Of Toner Refill Portion App 20210088939 - LEE; SeungSup ; et al. | 2021-03-25 |
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