Inventor
DONGFENG LI
Inventor
CN
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Gprimary
C10GCracking hydrocarbon oils13%
C07CAcyclic or carbocyclic compounds8%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients8%
C08LCompositions of macromolecular compounds8%
E21BEarth or rock drilling8%
H04LTransmission of digital information, e.g. telegraphic communication8%
Y02PClimate change mitigation technologies in the production or processing of goods8%
B01DSeparation4%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
C08JWorking-up4%
PatentTitleYear
12,584,000Reduced graphene oxide nitrile rubber and method for preparing tooth-scar-free tooth block202612,570,908Method for selective hydrogenation of butadiene extraction tail gas and selective hydrogenation apparatus thereof202612,524,741Cigarette device management system and method202612,509,573Functionalized graphene oxide nitrile rubber and tooth-scar-free tooth block202512,166,678Path traffic allocation method, network device, and network system202412,149,434Data transmission method and apparatus202412,110,460Method and apparatus for recovering C2--C4 components in methane-containing industrial gas202412,014,149Multi-turn human-machine conversation method and apparatus based on time-sequence feature screening encoding module202411,649,406Method and system for separating light hydrocarbons2023Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2023–2026Patents assigned to BEIJING RES INST CHEMICAL IND CHINA PETROLEUM & CHEMICAL CORP (3)· patent assignee history
2023–2026Patents assigned to CHINA PETROLEUM & CHEM CORP (3)· patent assignee history
2023–2026Based in CN· patent location history
2024Patents assigned to HUAWEI TECH CO LTD (2)· patent assignee history
2024Patents assigned to QILU UNIV OF TECHNOLOGY SHANDONG ACADEMY OF SCIENCES (1)· patent assignee history
2025–2026Patents assigned to JIANHU KAITAI PETROLEUM MACHINERY CO LTD (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BEIJING RES INST CHEMICAL IND CHINA PETROLEUM & CHEMICAL CORP | 3 | 2023–2026 |
| CHINA PETROLEUM & CHEM CORP | 3 | 2023–2026 |
| HUAWEI TECH CO LTD | 2 | 2024 |
| JIANHU KAITAI PETROLEUM MACHINERY CO LTD | 2 | 2025–2026 |
| QILU UNIV OF TECHNOLOGY SHANDONG ACADEMY OF SCIENCES | 1 | 2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 9 | 2023–2026 |