Inventor
Wei Li
Inventor
Hunan, CN
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B22Fprimary
B22FWorking metallic powder17%
C07CAcyclic or carbocyclic compounds17%
C22CAlloys17%
A61KPreparations for medical, dental or toiletry purposes8%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations8%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%
C07BGeneral methods of organic chemistry8%
C07DHeterocyclic compounds8%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys8%
PatentTitleYear
10,851,438Oxide dispersion-strengthened alloy (ODS), lead-free and free-cutting brass and producing method thereof202010,787,408Method for producing 9,9-bis(3-phenyl-4-(2-hydroxyethoxy)phenyl)fluorene202010,519,528Lead-free, high-sulphur and easy-cutting copper-manganese alloy and preparation method thereof201910,294,219Ledipasvir crystal form and preparation method thereof20199,550,721'Method for preparing dimethyl 1,4-cyclohexanedicarboxylate and method for preparing 1,4-cyclohexanedimethanol'2017Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2017Patents assigned to CHINA PETROCHEMICAL DEV CORP (1)· patent assignee history
2017Based in Taipei, TW· patent location history
2019–2020Patents assigned to HUNAN TERRY NEW MAT COMPANY LTD (2)· patent assignee history
2019Patents assigned to SHANGHAI FOREFRONT PHARMACEUTICAL CO LTD (1)· patent assignee history
2019Based in Yiyang, CN· patent location history
2019Based in Shanghai, CN· patent location history
2020Patents assigned to CHINA PETROCHEMICAL DEV CORPORATION (1)· patent assignee history
2020Based in Hunan, CN· patent location history
2020Based in Kaohsiung, TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HUNAN TERRY NEW MAT COMPANY LTD | 2 | 2019–2020 |
| CHINA PETROCHEMICAL DEV CORP | 1 | 2017 |
| CHINA PETROCHEMICAL DEV CORPORATION | 1 | 2020 |
| SHANGHAI FOREFRONT PHARMACEUTICAL CO LTD | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hunan, CN | 1 | 2020 |
| Kaohsiung, TW | 1 | 2020 |
| Yiyang, CN | 1 | 2019 |
| Shanghai, CN | 1 | 2019 |
| Taipei, TW | 1 | 2017 |