Inventor

Xuan Ji

Inventor
Qingdao, CN

Overview

2→
Patents
2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F25Dprimary
F25DRefrigerators40%
F25BRefrigeration machines, plants or systems20%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact20%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application20%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2020Patents assigned to QINGDAO HAIER JOINT STOCK CO LTD (2)· patent assignee history
2020Patents assigned to QINGDAO HAIER JOINT STOCK COL LTD (1)· patent assignee history
2020Patents assigned to Qingdao haier special refrigerator co ltd (1)· patent assignee history
2020Based in Qingdao, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
QINGDAO HAIER JOINT STOCK CO LTD22020
QINGDAO HAIER JOINT STOCK COL LTD12020
Qingdao haier special refrigerator co ltd12020
Locations
LocationPatentsSpan
Qingdao, CN22020