Inventor
Yunfeng Zheng
Inventor
Beijing, CN
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry33%
C01BNon-metallic elements33%
C10GCracking hydrocarbon oils25%
A61NElectrotherapy8%
PatentTitleYear
9,968,918Catalytic cracking catalyst for high-efficiency conversion of heavy oil and preparation method thereof20189,968,915Phosphorus-containing ultrastable Y-type rare earth molecular sieve and preparation method therefor20189,889,439'High light received heavy oil catalytic cracking catalyst and preparation method therefor'20189,840,422'Magnesium modified ultra-stable rare earth Y-type molecular sieve and preparation method therefor'20178,172,742'Magnetic stimulation apparatus for central nervous system, circuit and use thereof, and method of using the apparatus'2012Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2012–2018Patents assigned to ZHENG YUNFENG (5)· patent assignee history
2012–2018Based in Beijing, CN· patent location history
2017–2018Patents assigned to CAI JINJUN (4)· patent assignee history
2017–2018Patents assigned to DUAN HONGCHANG (4)· patent assignee history
2017–2018Patents assigned to GAO XIONGHOU (4)· patent assignee history
2017–2018Patents assigned to HUANG XIAOLIANG (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ZHENG YUNFENGself | 5 | 2012–2018 |
| CAI JINJUN | 4 | 2017–2018 |
| DUAN HONGCHANG | 4 | 2017–2018 |
| GAO XIONGHOU | 4 | 2017–2018 |
| HUANG XIAOLIANG | 4 | 2017–2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beijing, CN | 5 | 2012–2018 |