Inventor

Haoquan Liu

Inventor

Qingdao, CN

Overview

4→

Patents

2018–2021

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 4 as inventor

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

B01Dprimary

B01DSeparation19%

C01BNon-metallic elements19%

F25DRefrigerators19%

A23BPreservation of foods, foodstuffs or non-alcoholic beverages6%

A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for6%

A23VIndexing scheme relating to foods, foodstuffs or non-alcoholic beverages and lactic or propionic acid bacteria used in foodstuffs or food preparation6%

E21BEarth or rock drilling6%

F25BRefrigeration machines, plants or systems6%

G01VGeophysics6%

G06FElectric digital data processing6%

PatentTitleYear

10,982,895Refrigerating and freezing device2021 10,966,442Refrigerator2021 10,890,369Refrigerating and freezing device2021 10,049,172Predicting and modeling changes in capillary pressure and relative permeabilities in a porous medium due to mineral precipitation and dissolution2018

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2018Patents assigned to SAUDI ARABIAN OIL CO (1)· patent assignee history

2018Based in Houston, TX, US· patent location history

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

Assignee	Patents	Span
QINGDAO HAIER JOINT STOCK CO LTD	3	2021
SAUDI ARABIAN OIL CO	1	2018

Locations

Location	Patents	Span
Qingdao, CN	3	2021
Houston, Texas, US	1	2018