Inventor
Wei Chen
Inventor
Woodbury, MN, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds30%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations26%
A61KPreparations for medical, dental or toiletry purposes22%
G11BInformation storage based on relative movement between record carrier and transducer13%
C07BGeneral methods of organic chemistry4%
C07CAcyclic or carbocyclic compounds4%
PatentTitleYear
11,011,193Dual flux change layer (FCL) assisted magnetic recording202110,950,262Magnetic reader sensor with shield-to-shield spacing improvement and better free layer-to-shield spacing control202110,937,450Magnetic flux guiding device with spin torque oscillator (STO) film having one or more negative spin polarization layers in assisted writing application202110,851,063Methods for preparing levorphanol and related compounds, and compositions thereof20207,902,378'Carvedilol phosphate salts and/or solvates thereof, corresponding compositions, and/or methods of treatment'20117,893,100'Carvedilol phosphate salts and/or solvates thereof, corresponding compositions, and/or methods of treatment'20117,759,384'Carvedilol phosphate salts and/or solvates thereof, corresponding compositions, and/or methods of treatment'20107,750,036'Carvedilol salts, corresponding compositions, methods of delivery and/or treatment'20107,626,041'Carvedilol phosphate salts and/or solvates thereof, corresponding compositions, and/or methods of treatment'20097,268,156'Carvedilol phosphate salts and/or solvates thereof, corresponding compositions and/or methods of treatment'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2011Patents assigned to SB PHARMCO INC (3)· patent assignee history
2007–2011Based in Woodbury, MN, US· patent location history
2009–2011Patents assigned to SMITHKLINE BEECHAM CORK LTD (3)· patent assignee history
2020Patents assigned to AMPAC FINE CHEMICALS LLC (1)· patent assignee history
2020Based in Folsom, CA, US· patent location history
2021Patents assigned to HEADWAY TECH INC (3)· patent assignee history
2021Based in San Jose, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HEADWAY TECH INC | 3 | 2021 |
| SB PHARMCO INC | 3 | 2007–2011 |
| SMITHKLINE BEECHAM CORK LTD | 3 | 2009–2011 |
| AMPAC FINE CHEMICALS LLC | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Woodbury, Minnesota, US | 6 | 2007–2011 |
| San Jose, California, US | 3 | 2021 |
| Folsom, California, US | 1 | 2020 |