Inventor
Changhong Li
Inventor
Espoo, FI
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication23%
H04WWireless communication networks23%
A01NPreservation of bodies of humans or animals or plants or parts thereof8%
B82YSpecific uses or applications of nanostructures8%
C07DHeterocyclic compounds8%
G02BOptical elements, systems or apparatus8%
G06FElectric digital data processing8%
H01PWaveguides8%
H04MTelephonic communication8%
PatentTitleYear
10,795,081Method for measuring and dynamically modulating characteristics of slow light in photonic-crystal coupled-cavity waveguide202010,321,682Pesticidal aryl pyrrole nitrile compound, preparation method for same, uses thereof, agricultural pesticide, and pest control method20199,705,911'System and method for using quarantine networks to protect cellular networks from viruses and worms'20179,554,271'Generating keys for protection in next generation mobile networks'20178,526,408'Support of UICC-less calls'20137,469,145'Communication system'2008Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2008–2013Patents assigned to NOKIA CORP (2)· patent assignee history
2008–2017Based in Espoo, FI· patent location history
2013–2017Patents assigned to LI CHANGHONG (3)· patent assignee history
2013Patents assigned to ERONEN PASI ISMO (1)· patent assignee history
2017Patents assigned to NOKIA TECHNOLOGIES OY (2)· patent assignee history
2019Patents assigned to HENAN GOODDAYS BIOLOGY DEV CO LTD (1)· patent assignee history
2019Based in Henan, CN· patent location history
2020Based in Qingdao, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LI CHANGHONGself | 3 | 2013–2017 |
| NOKIA CORP | 2 | 2008–2013 |
| NOKIA TECHNOLOGIES OY | 2 | 2017 |
| ERONEN PASI ISMO | 1 | 2013 |
| HENAN GOODDAYS BIOLOGY DEV CO LTD | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Espoo, FI | 4 | 2008–2017 |
| Qingdao, CN | 1 | 2020 |
| Henan, CN | 1 | 2019 |