Inventor

Dongye CAO

Inventor
CN

Overview

1→
Patents
2022
Patent span
Human necessities
Primary field (CPC A)

Patents· 1 as inventor

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

A24Bprimary
A24BManufacture or preparation of tobacco for smoking or chewing20%
A24DCigars20%
C10BDestructive distillation of carbonaceous materials for production of gas, coke, tar, or similar materials20%
C10LFuels not otherwise provided for20%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution20%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022Patents assigned to CHINA TOBACCO YUNNAN IND CO LTD (1)· patent assignee history
2022Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHINA TOBACCO YUNNAN IND CO LTD12022
Locations
LocationPatentsSpan
CN12022