LexDanaLexDanabeta
Inventor

Lei Jiang

Inventor
Beijing, CN

Overview

3→
Patents
2021
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes20%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations20%
C07DHeterocyclic compounds20%
E21BEarth or rock drilling20%
H04WWireless communication networks20%
PatentTitleYear
10,968,215Pyrido five-element aromatic ring compound, preparation method therefor and use thereof202110,941,655Downhole filtrate contamination monitoring with corrected resistivity or conductivity202110,945,134Method and devices for signaling transmission in unlicensed band2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to NEC CORP (1)· patent assignee history
2021Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (1)· patent assignee history
2021Patents assigned to SHANGHAI HAIHE PHARMACEUTICAL CO LTD (1)· patent assignee history
2021Patents assigned to SHANGHAI INST MATERIA MEDICA CAS (1)· patent assignee history
2021Based in Beijing, CN· patent location history
2021Based in Shanghai, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NEC CORP12021
SCHLUMBERGER TECHNOLOGY CORP12021
SHANGHAI HAIHE PHARMACEUTICAL CO LTD12021
SHANGHAI INST MATERIA MEDICA CAS12021
Locations
LocationPatentsSpan
Beijing, CN22021
Shanghai, CN12021