Inventor
Ningsheng Liu
Inventor
Beijing, CN
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing44%
G06TImage data processing or generation, in general22%
H04NPictorial communication, e.g. television22%
H04LTransmission of digital information, e.g. telegraphic communication11%
PatentTitleYear
8,732,216'Docbase management system and method for extending docbase management system and functions'20148,538,068'Embedding and detecting hidden information'20138,423,521'Method and apparatus for storing document data in docbase management system'20138,386,943'Method for query based on layout information'20138,386,793'Method and apparatus for implementing electronic seal'20138,311,265'Embedding and detecting hidden information'2012Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2012–2014Patents assigned to LIU NINGSHENG (6)· patent assignee history
2012–2014Patents assigned to WANG DONGLIN (6)· patent assignee history
2012–2014Patents assigned to LIU CHANGWEI (3)· patent assignee history
2012–2013Patents assigned to GAO PENG (2)· patent assignee history
2012–2014Based in Beijing, CN· patent location history
2013–2014Patents assigned to SURSEN CORP (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LIU NINGSHENGself | 6 | 2012–2014 |
| WANG DONGLIN | 6 | 2012–2014 |
| SURSEN CORP | 5 | 2013–2014 |
| LIU CHANGWEI | 3 | 2012–2014 |
| GAO PENG | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beijing, CN | 6 | 2012–2014 |