Liu; Dafan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liu; Dafan.The latest application filed is for "recommending contacts in a social network".
- Liu; Dafan - Beijing CN
- Liu; Dafan - Huizhou CN
| Patent | Date |
|---|---|
| Recommending contacts in a social network Grant 10,891,343 - Liu , et al. January 12, 2 | 2021-01-12 |
| Recommending Contacts In A Social Network App 20170177732 - Liu; Dafan ; et al. | 2017-06-22 |
| Recommending contacts in a social network Grant 9,626,648 - Liu , et al. April 18, 2 | 2017-04-18 |
| Digital Field-induction Water-level Intelligent Sensing System And Its Implementation Method App 20120291541 - Liu; Dafan ; et al. | 2012-11-22 |
| Recommending Contacts In A Social Network App 20090319466 - Liu; Dafan ; et al. | 2009-12-24 |
| Recommending contacts in a social network Grant 7,596,597 - Liu , et al. September 29, 2 | 2009-09-29 |
| Recommending Contacts In A Social Network App 20080059576 - Liu; Dafan ; et al. | 2008-03-06 |
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