Inventor
Zhonghuan Zhao
Inventor
Ningxia, CN
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B22Fprimary
B22FWorking metallic powder33%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys33%
C23GCleaning or de-greasing of metallic material by chemical methods other than electrolysis33%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2020Patents assigned to NINGXIA ORIENT TANTALUM IND CO LTD (1)· patent assignee history
2020Based in Ningxia, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NINGXIA ORIENT TANTALUM IND CO LTD | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ningxia, CN | 1 | 2020 |