Inventor
Ruihua Cheng
Inventor
Shanghai, CN
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds27%
Y02PClimate change mitigation technologies in the production or processing of goods18%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry9%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form9%
C07CAcyclic or carbocyclic compounds9%
H01FMagnets9%
H01LSemiconductor devices9%
H10NElectric solid-state devices not otherwise provided for9%
PatentTitleYear
10,369,559Composite catalyst, preparation process thereof, and process for catalyzing the trimerization of butadiene using the composite catalyst201910,053,523Supported polymetal olefin polymerization catalyst, preparation method and use thereof20189,725,530'Supported metal oxide double active center polyethylene catalyst, process for preparing the same and use thereof'20179,611,339'Supported double center hybrid polyethylene catalyst, process for preparing the same and use thereof'20179,130,144'Multiferro-heterostructure composition having tunable magnetic coupling at room temperature'2015Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2015Patents assigned to RHODE ISLAND BOARD OF EDUCATION STATE OF RHODE ISLAND AND PROVIDENCE PLANTATIONS (1)· patent assignee history
2015Based in Carmel, IN, US· patent location history
2017–2018Patents assigned to UNIV EAST CHINA SCIENCE & TECH (3)· patent assignee history
2017–2018Based in Shanghai, CN· patent location history
2019Patents assigned to WANHUA CHEMICAL GROUP CO LTD (1)· patent assignee history
2019Patents assigned to WANHUA CHEMICAL NINGBO CO LTD (1)· patent assignee history
2019Based in Yantai, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV EAST CHINA SCIENCE & TECH | 3 | 2017–2018 |
| RHODE ISLAND BOARD OF EDUCATION STATE OF RHODE ISLAND AND PROVIDENCE PLANTATIONS | 1 | 2015 |
| WANHUA CHEMICAL GROUP CO LTD | 1 | 2019 |
| WANHUA CHEMICAL NINGBO CO LTD | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shanghai, CN | 3 | 2017–2018 |
| Yantai, CN | 1 | 2019 |
| Carmel, IN, US | 1 | 2015 |