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Inventor

Volker Walther

Inventor
Weisenheim, DE

Overview

2→
Patents
1994–1995
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C09Bprimary
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments40%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests40%
D06PDyeing or printing textiles20%
PatentTitleYear
5,431,699'Mixtures of azo dyes for navy to black hues'19955,318,601'Dye mixtures containing azo and quinophthalone dyes'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–1995Patents assigned to BASF AG (2)· patent assignee history
1994–1995Based in Weisenheim, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BASF AG21994–1995
Locations
LocationPatentsSpan
Weisenheim, DE21994–1995