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Inventor

Hans-Joachim Kramer

Inventor
Dormagen, DE

Overview

3→
Patents
1990–2003
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary
C07CAcyclic or carbocyclic compounds67%
C10GCracking hydrocarbon oils33%
PatentTitleYear
6,632,972'Process for the selective preparation of DIB from an i-butene-containing C4 stream'20035,059,306'Process for removing pure aromatics'19914,950,820'Process for the hydrogenation of olefinic hydrocarbons in hydrocarbon mixtures containing tert.-alkyl alkyl ethers'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to ERDOELCHEMIE GMBH (1)· patent assignee history
1990–2003Based in Dormagen, DE· patent location history
1991Patents assigned to BAYER AG (1)· patent assignee history
2003Patents assigned to BP KOLN GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BAYER AG11991
BP KOLN GMBH12003
ERDOELCHEMIE GMBH11990
Locations
LocationPatentsSpan
Dormagen, DE31990–2003