Inventor
YINGCHENG LI
Inventor
CN
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere41%
E21BEarth or rock drilling27%
C07CAcyclic or carbocyclic compounds14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
PatentTitleYear
12,344,795Biological and chemical composite blockage removing agent and preparation process and use thereof202512,331,246Polyacrylamide-based symmetric branched polymer surfactant and a process for preparing the same and use thereof202512,180,419Alkylaniline polyether benzenesulfonate and process of producing same202412,037,541Anionic-cationic-nonionic surfactant, production and use thereof202411,920,083Surfactant composition, and manufacturing method and application of same202411,578,253Surfactant composition, and manufacturing method and application of same202311,286,416Surfactant composition and preparation method therefor and application thereof202211,193,055Surfactant composition and preparation method therefor and application thereof202111,186,764Anionic-cationic-nonionic surfactant, production and use thereof2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to CHINA PETROLEUM & CHEM CORP (9)· patent assignee history
2021–2025Patents assigned to SHANGHAI RES INST PETROCHEMICAL TECH SINOPEC (9)· patent assignee history
2021–2025Based in CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHINA PETROLEUM & CHEM CORP | 9 | 2021–2025 |
| SHANGHAI RES INST PETROCHEMICAL TECH SINOPEC | 9 | 2021–2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 9 | 2021–2025 |