Inventor

Changqing Liu

Inventor

Zhejiang, CN

Overview

2015–2021

Patent span

Mechanical engineering

Primary field (CPC F)

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

F25Bprimary

F25BRefrigeration machines, plants or systems20%

F16KValves13%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general7%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof7%

F16LPipes7%

G05DSystems for controlling or regulating non-electric variables7%

G06FElectric digital data processing7%

G06KGraphical data reading7%

G06VImage or video recognition or understanding7%

H04LTransmission of digital information, e.g. telegraphic communication7%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2015–2017Patents assigned to ZHEJIANG SANHUA CO LTD (3)· patent assignee history

2015–2017Patents assigned to LIU CHANGQING (2)· patent assignee history

2015Patents assigned to CHEN BOTING (1)· patent assignee history

2015Patents assigned to LIU JIE (1)· patent assignee history

2015–2017Based in Zhejiang, CN· patent location history

2017Based in Guangdong, CN· patent location history

2020Patents assigned to SAP SE (1)· patent assignee history

2020Based in Shanghai, CN· patent location history

2021Based in Shandong, CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations