Ryu; Young-Gyu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ryu; Young-Gyu.The latest application filed is for "method for serving character message transmission during telephone call over pstn".
- Ryu; Young-Gyu - Suwon-shi KR
| Patent | Date |
|---|---|
| Method for using a unique IP address in a private IP address domain Grant 7,281,059 - Ryu , et al. October 9, 2 | 2007-10-09 |
| Method for serving character message transmission during telephone call over PSTN Grant 7,106,838 - Ryu , et al. September 12, 2 | 2006-09-12 |
| Method for serving character message transmission during telephone call over PSTN App 20030147514 - Ryu, Young-Gyu ; et al. | 2003-08-07 |
| Method for using a unique IP address in a private IP address domain App 20020038382 - Ryu, Young-Gyu ; et al. | 2002-03-28 |
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