Inventor
Volker Hartjes
Inventor
Duisburg, DE
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds38%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry21%
B01DSeparation13%
Y02PClimate change mitigation technologies in the production or processing of goods13%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds8%
B01LChemical or physical laboratory apparatus for general use4%
C02FTreatment of water, waste water, sewage, or sludge4%
PatentTitleYear
10,689,323Process for preparation of di- and polyamines of the diphenylmethane series202010,689,322Process for preparation of di- and polyamines of the diphenylmethane series202010,640,453Method of producing diamines and polyamines of the diphenylmethane series202010,640,455Method of producing diamines and polyamines of the diphenylmethane series202010,633,327Method of producing diamines and polyamines of the diphenylmethane series at different production capacities202010,626,078Method of producing diamines and polyamines of the diphenylmethane series at different production capacities202010,513,487Methods for producing chemical products with operation interruptions201910,125,090Process for preparation of di- and polyamines of the diphenylmethane series201810,125,091Process for preparation of di- and polyamines of the diphenylmethane series2018Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2018–2020Patents assigned to COVESTRO DEUTSCHLAND AG (9)· patent assignee history
2018–2020Based in Duisburg, DE· patent location history
2020Patents assigned to COVESTRO INTELLECTUAL PROPERTY GMBH & CO KG (1)· patent assignee history
2020Patents assigned to Covestro Duetschland AG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| COVESTRO DEUTSCHLAND AG | 9 | 2018–2020 |
| COVESTRO INTELLECTUAL PROPERTY GMBH & CO KG | 1 | 2020 |
| Covestro Duetschland AG | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Duisburg, DE | 9 | 2018–2020 |