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Inventor

Stefan Krause

Inventor
Frankfurt am Main, DE

Overview

7→
Patents
1998–2001
Patent span
Chemistry
Primary field (CPC C)

Patents· 7 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds86%
C07DHeterocyclic compounds14%
PatentTitleYear
6,242,646'Method of producing 2,4-dichloro-5-hydroxyacetanilide'20016,001,831'Process for producing quinazoline derivatives'19995,973,189'Monoesters of carboxymethylene anthranilic acids and process for preparing the same'19995,965,775'Process for the preparation of 3,5-difluoroaniline'19995,945,556'Process for preparing N-carboxymethylene-4-chloro-anthranilic acid and its dialkyl esters'19995,821,385'Process for the preparation of N-(2-carboxy-5-chloro-phenyl)glycine'19985,811,572'Process for the preparation of N-carboxymethyleneanthranilic acid'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998Patents assigned to HOECHST AG (2)· patent assignee history
1998Based in Sulzbach, DE· patent location history
1999–2001Patents assigned to CLARIANT GMBH (5)· patent assignee history
1999–2001Based in Frankfurt am Main, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CLARIANT GMBH51999–2001
HOECHST AG21998
Locations
LocationPatentsSpan
Frankfurt am Main, DE51999–2001
Sulzbach, DE21998