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Inventor

Kefei Cao

Inventor
Beijing, CN

Overview

3→
Patents
2018–2019
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.

F27Dprimary
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace40%
C22BProduction and refining of metals20%
F27BFurnaces, kilns, ovens or retorts in general20%
Y02PClimate change mitigation technologies in the production or processing of goods20%
PatentTitleYear
10,443,112Fuming furnace with lead collecting and discharging function201910,415,883Refractory protection layer for metallurgical furnace201910,113,800Lance2018

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2018–2019Patents assigned to CHINA ENFI ENG CORP (3)· patent assignee history
2018–2019Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHINA ENFI ENG CORP32018–2019
Locations
LocationPatentsSpan
Beijing, CN32018–2019