Inventor

Walter Dammert

Inventor

Frankenthal, DE

Overview

2→

Patents

1976

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.

B01Jprimary

B01JChemical or physical processes, e.g. catalysis or colloid chemistry33%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium33%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments33%

PatentTitleYear

3,941,766'Azo compounds from pigments of a heterocyclic-substituted aniline coupled to a 2,6-dihydroxy-4-methyl-3-cyano or -3-carbamoylpyridine'1976 3,936,445'Process for the production of iron complexes of tetraazaannulenes'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to BASF AG (2)· patent assignee history

1976Based in Frankenthal, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	2	1976

Locations

Location	Patents	Span
Frankenthal, DE	2	1976