Qian; Liujian
Patent Applications and Registrations
Patent applications and USPTO patent grants for Qian; Liujian.The latest application filed is for "generating virtual map tiles according to an ad hoc specification".
- Qian; Liujian - Lancaster MA
| Patent | Date |
|---|---|
| Generating virtual map tiles according to an ad hoc specification Grant 10,255,293 - Zhu , et al. | 2019-04-09 |
| Automatic update for map cache Grant 10,042,863 - Zhu , et al. August 7, 2 | 2018-08-07 |
| Generating Virtual Map Tiles According To An Ad Hoc Specification App 20170108347 - ZHU; Honglei ; et al. | 2017-04-20 |
| Automatic Update For Map Cache App 20150347457 - ZHU; Honglei ; et al. | 2015-12-03 |
| Geocoding using a relational database Grant 7,376,636 - Wang , et al. May 20, 2 | 2008-05-20 |
| Contextual search interface for business directory services Grant 7,162,470 - Sharma , et al. January 9, 2 | 2007-01-09 |
| Contextual search interface for business directory services App 20040054691 - Sharma, Jayant ; et al. | 2004-03-18 |
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