LexDanaLexDanabeta
Inventor

Ruowu Xin

Inventor
Qingdao, CN

Overview

3→
Patents
2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 3 as inventor

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

B01Dprimary
B01DSeparation27%
C01BNon-metallic elements27%
F25DRefrigerators27%
A23BPreservation of foods, foodstuffs or non-alcoholic beverages9%
F17CVessels for containing or storing compressed, liquefied or solidified gases9%
PatentTitleYear
11,079,159Refrigeration and freezing device202110,982,895Refrigerating and freezing device202110,890,369Refrigerating and freezing device2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to QINGDAO HAIER JOINT STOCK CO LTD (3)· patent assignee history
2021Based in Qingdao, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
QINGDAO HAIER JOINT STOCK CO LTD32021
Locations
LocationPatentsSpan
Qingdao, CN32021