Inventor
Wen-Ching Hsieh
Inventor
Chino Hills, CA, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere29%
C08JWorking-up21%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
F16MFrames, casings or beds of engines, machines or apparatus, not specific to engines, machines or apparatus provided for elsewhere13%
B01DSeparation4%
C07CAcyclic or carbocyclic compounds4%
G09FDisplaying4%
Y02ATechnologies for adaptation to climate change4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
11,117,101Selectively permeable graphene oxide membrane20217,798,457'Pivot support device and a display apparatus supported thereon'20107,484,269'Portable device capable of standing and hanging by handle assembly thereof'20097,365,968'Electronic device and image configuration thereof'20087,273,202'Combined supporting base'20074,970,251'Viscous polymer solution'19904,847,018'Process for producing petroleum sulfonates'19894,836,282'Enhanced oil recovery method employing an aqueous polymer'19894,808,648'Enhanced oil recovery composition'19894,795,772'Enhanced oil recovery composition'19894,753,973'Enhanced oil recovery composition'19884,530,400'Process for enhanced oil recovery employing synthetic sulfonates and petroleum sulfonate blends'19854,446,036'Process for enhanced oil recovery employing petroleum sulfonate blends'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1990Patents assigned to UNION OIL CO (8)· patent assignee history
1984–1990Based in Chino Hills, CA, US· patent location history
2007–2008Patents assigned to BENQ CORP (2)· patent assignee history
2007Based in Linkou Township, Taipei County, TW· patent location history
2008–2009Based in Taipei, TW· patent location history
2009–2010Patents assigned to QISDA CORP (2)· patent assignee history
2010Based in Linkou Township, TW· patent location history
2021Patents assigned to NITTO DENKO CORP (1)· patent assignee history
2021Based in San Diego, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNION OIL CO | 8 | 1984–1990 |
| BENQ CORP | 2 | 2007–2008 |
| QISDA CORP | 2 | 2009–2010 |
| NITTO DENKO CORP | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chino Hills, California, US | 7 | 1984–1990 |
| Taipei, TW | 2 | 2008–2009 |
| San Diego, California, US | 1 | 2021 |
| Linkou Township, TW | 1 | 2010 |
| Linkou Township, Taipei County, TW | 1 | 2007 |