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Inventor

Ruifeng Li

Inventor
Beijing, CN

Overview

9→
Patents
2016–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 9 as inventor

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

C10Gprimary
C10GCracking hydrocarbon oils13%
H04WWireless communication networks13%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%
C10MLubricating compositions8%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions8%
G06FElectric digital data processing8%
H04LTransmission of digital information, e.g. telegraphic communication8%
H04MTelephonic communication8%
B60GVehicle suspension arrangements4%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology4%
PatentTitleYear
10,836,231Automatic adjustment device for front suspension of driverless formula racing car202010,708,398Terminal device202010,683,459Liquid-phase hydroisomerization system and process therefor and use thereof202010,284,697Terminal device201910,258,965Sulfur-resistant catalyst for aromatics saturated hydrogenation and preparation method thereof201910,252,255Method for preparing noble metal hydrogenation catalyst, noble metal hydrogenation catalyst and use thereof20199,834,652Regenerated cellulose film, functional film and preparation method therefor20179,374,247'Channel estimation method and device'20169,350,512'Method for activating multiple streams transmission UE to transmit HS-DPCCH and UE thereof'2016

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2016Patents assigned to CHENG XIANG (1)· patent assignee history
2016Patents assigned to CHINA ACADEMY OF TELECOMM TECH (1)· patent assignee history
2016–2020Based in Beijing, CN· patent location history
2016Based in Shenzhen, CN· patent location history
2017Patents assigned to INST OF CHEMISTRY CHINESE ACADEMIC OF SCIENCES (1)· patent assignee history
2017Based in Shandong, CN· patent location history
2019–2020Patents assigned to PETROCHINA CO LTD (3)· patent assignee history
2019–2020Patents assigned to HUAWEI TECH CO LTD (2)· patent assignee history
2019Based in Daqing, CN· patent location history
2020Based in Hefei, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PETROCHINA CO LTD32019–2020
HUAWEI TECH CO LTD22019–2020
CHENG XIANG12016
CHINA ACADEMY OF TELECOMM TECH12016
INST OF CHEMISTRY CHINESE ACADEMIC OF SCIENCES12017
Locations
LocationPatentsSpan
Beijing, CN42016–2020
Daqing, CN22019
Hefei, CN12020
Shandong, CN12017
Shenzhen, CN12016