Inventor
Yuanyuan Wan
Inventor
Chongqing, CN
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B22Dprimary
B22DCasting of metals50%
B22CFoundry moulding17%
G01BMeasuring length, thickness or similar linear dimensions17%
G02BOptical elements, systems or apparatus17%
PatentTitleYear
10,946,439Plaster casting mold fabrication method for a complicated structure aluminum alloy casting with a large inner cavity and a thin wall202110,913,111Method for vacuum smelting and variable pressure solidification forming aluminum alloy piece with ultra-thin wall and high gas tightness202110,888,921Multi-position parallel pressurized casting device and method for large aluminum alloy castings20218,764,241'Ring light source system for interferometer with adjustable ring radius and ring radial width'2014Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2014Patents assigned to INST OPTICS & ELECT CN ACAD (1)· patent assignee history
2014Patents assigned to WAN YONGJIAN (1)· patent assignee history
2014Patents assigned to WU YONGQIAN (1)· patent assignee history
2014Based in Sichuan, CN· patent location history
2021Patents assigned to NO 59 INST CHINA ORDNANCE IND (2)· patent assignee history
2021Patents assigned to NO 59 RES INSTITUTE OF CHINA ORDNANCE INDUSTRY (1)· patent assignee history
2021Based in Chongqing, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NO 59 INST CHINA ORDNANCE IND | 2 | 2021 |
| INST OPTICS & ELECT CN ACAD | 1 | 2014 |
| NO 59 RES INSTITUTE OF CHINA ORDNANCE INDUSTRY | 1 | 2021 |
| WAN YONGJIANself | 1 | 2014 |
| WU YONGQIAN | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chongqing, CN | 3 | 2021 |
| Sichuan, CN | 1 | 2014 |