Inventor

Klaus Pandl

Inventor

Ludwigshafen, DE

Overview

19→

Patents

1990–2002

Patent span

Chemistry

Primary field (CPC C)

Patents· 19 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds52%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments43%

C07DHeterocyclic compounds4%

PatentTitleYear

6,471,928'Aqueous formaldehyde solutions with a low tetroxane content'2002 6,316,676'Process for the preparation of .alpha.-diketones from ketols or ketals from ketols'2001 6,242,653'Process for the preparation of .alpha.-diketones from ketols or ketals from ketols'2001 5,391,719'Preparation of aminoformazans'1995 5,260,431'Nitroanilinesulfonic acids and the preparation of phenylenediaminesulfonic acids'1993 5,245,020'Reactive dyes with two or three nitrogen-containing haloheterocycles as reactive system'1993 5,241,055'Reactive dyes with a reactive system based on alkenylsulfonyl and benzyl compounds as intermediates therefor'1993 5,231,171'Reactive dyes having an allylsulfonyl or propargylesulfonyl group'1993 5,210,187'Double attachment reactive dyes having alkyl- or alkenylsulfonyl and alkyl- or alkenylsulfonylalkyl groups'1993 5,206,426'Phenylene diamines and process for the preparation of phenylene diamines'1993 5,196,573'Process for the preparation of sulfonated anthranilic acids'1993 5,175,262'Doubled reactive dyes'1992 5,149,789'Reactive dyes with two or three nitrogen-containing haloheterocycles as reactive system'1992 5,117,050'Phenylene diamines and process for the preparation of phenylene diamines'1992 5,047,529'Phenylsulfones and cyclization products thereof'1991 5,041,540'Copper formazan reactive dyes having halotriazine ring'1991 5,041,631'Process for the preparation of 2-alkylamino-4-aminobenzenesulfonic acids'1991 5,004,807'Copper formazan reactive dyes containing a monofluorotriazine or monochlorotriazine group'1991 4,973,671'Doubled copper formazan reactive dyes containing a monofluorotriazine or monochlorotriazine group'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2002Patents assigned to BASF AG (19)· patent assignee history

1990–1995Based in Ludwigshafen, DE· patent location history

2001Based in Hambrucken, DE· patent location history

2002Based in Hambrcken, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	19	1990–2002

Locations

Location	Patents	Span
Ludwigshafen, DE	16	1990–1995
Hambrucken, DE	2	2001
Hambrcken, DE	1	2002