Liao; Hongshu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liao; Hongshu.The latest application filed is for "image based captcha challenges".
- Liao; Hongshu - Mountain View CA
| Patent | Date |
|---|---|
| Browser attestation challenge and response system Grant 10,402,555 - Shao , et al. Sep | 2019-09-03 |
| Controlling access to online resources using device validations Grant 10,044,725 - Malenfant , et al. August 7, 2 | 2018-08-07 |
| Image based CAPTCHA challenges Grant 10,042,992 - Liu , et al. August 7, 2 | 2018-08-07 |
| Image Based CAPTCHA Challenges App 20170372048 - Liu; Wei ; et al. | 2017-12-28 |
| Image based CAPTCHA challenges Grant 9,760,700 - Liu , et al. September 12, 2 | 2017-09-12 |
| Browser Attestation Challenge and Response System App 20170180373 - Shao; Haidong ; et al. | 2017-06-22 |
| Controlling Access To Online Resources Using Device Validations App 20170180384 - Malenfant; Aaron ; et al. | 2017-06-22 |
| Image Based CAPTCHA Challenges App 20170161477 - Liu; Wei ; et al. | 2017-06-08 |
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