Method, apparatus, and system for determining the existence of a data file
US-2017270133-A1 · Sep 21, 2017 · US
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Wang Hanzhang patents
Wang Hanzhang is listed as an inventor on 1 patent in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Wang Hanzhang |
| Total patents | 1 |
| First publication | Sep 21, 2017 |
| Latest publication | Sep 21, 2017 |
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Alibaba Group Holding Ltd | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G06F17/30109 | 1 |
| G06F17/30203 | 1 |
| H04L67/42 | 1 |
| H04L67/06 | 1 |
| G06F16/152 | 1 |