Inventor

Jianjian Yi

Inventor
Fujian, CN

Overview

2→
Patents
2002–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B21Bprimary
B21BRolling of metal33%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy33%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution33%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to PO HANG IRON & STEEL (1)· patent assignee history
2002Patents assigned to RES INST IND SCIENCE & TECH (1)· patent assignee history
2002Based in Pohang-si, KR· patent location history
2021Patents assigned to NINGDE AMPEREX TECHNOLOGY LTD (1)· patent assignee history
2021Based in Fujian, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NINGDE AMPEREX TECHNOLOGY LTD12021
PO HANG IRON & STEEL12002
RES INST IND SCIENCE & TECH12002
Locations
LocationPatentsSpan
Fujian, CN12021
Pohang-si, KR12002