Inventor
Zhidong Zhu
Inventor
Houston, TX, US
Overview
Patents· 9 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 bonds33%
C07CAcyclic or carbocyclic compounds20%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
C07BGeneral methods of organic chemistry7%
H02KDynamo-electric machines7%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%
Y02PClimate change mitigation technologies in the production or processing of goods7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
11,128,196Axial split-phase bearingless flywheel motor of three phases and four degrees of freedom20219,421,522'Iridium catalysts for carbonylation'20169,387,469'Carbonylation catalyst and process using same'20168,420,869'Process for the preparation of 2,2,4,4-tetraalkylcyclobutane-1,3-diols'20137,700,513'Supported catalyst for olefin polymerization'20107,326,757'Supported catalyst for olefin polymerization'20087,153,803'High activity and good hydrogen response Ziegler-Natta polyethylene catalyst'20067,135,531'Spherical catalyst for olefin polymerization'20066,962,889'Spherical catalyst for olefin polymerization'2005Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2005–2006Patents assigned to ENGELHARD CORP (2)· patent assignee history
2005–2010Based in Houston, TX, US· patent location history
2006–2010Patents assigned to BASF CATALYSTS LLC (3)· patent assignee history
2013–2016Patents assigned to EASTMAN CHEM CO (3)· patent assignee history
2013Patents assigned to HEIDT PHILIP CONRAD (1)· patent assignee history
2013Patents assigned to LIU ZHUFANG (1)· patent assignee history
2013–2016Based in Kingsport, TN, US· patent location history
2021Based in Jiangsu, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF CATALYSTS LLC | 3 | 2006–2010 |
| EASTMAN CHEM CO | 3 | 2013–2016 |
| ENGELHARD CORP | 2 | 2005–2006 |
| HEIDT PHILIP CONRAD | 1 | 2013 |
| LIU ZHUFANG | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 5 | 2005–2010 |
| Kingsport, TN, US | 3 | 2013–2016 |
| Jiangsu, CN | 1 | 2021 |