Inventor

Yongfu CHENG

Inventor
CN

Overview

4→
Patents
2021–2022
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.

F24Fprimary
F24FAir-conditioning27%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications18%
F24DDomestic- or space-heating systems, e.g. central heating systems9%
F25BRefrigeration machines, plants or systems9%
G01RMeasuring electric variables9%
G05DSystems for controlling or regulating non-electric variables9%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes9%
G08BSignalling systems, e.g. personal calling systems9%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2022Patents assigned to QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD (4)· patent assignee history
2021Patents assigned to QINGDAO HAIER AIR CONDITIONER GENERAL CORP (1)· patent assignee history
2021–2022Based in CN· patent location history
2022Patents assigned to CHONGQING HAIER AIR CONDITIONER CORP LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD42021–2022
CHONGQING HAIER AIR CONDITIONER CORP LTD12022
QINGDAO HAIER AIR CONDITIONER GENERAL CORP12021
Locations
LocationPatentsSpan
CN42021–2022