Inventor

Rudolf Schickfluss

Inventor

Kelkheim, DE

Overview

1976–1987

Patent span

Chemistry

Primary field (CPC C)

Patents· 15 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. pigments35%

D06PDyeing or printing textiles23%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests23%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients10%

C07CAcyclic or carbocyclic compounds6%

Y10TTechnical subjects covered by former us classification3%

PatentTitleYear

4,689,050'Mixtures of blue disperse azo dyestuffs for dyeing synthetic fibers'1987 4,540,816'Single-vessel process for preparing ring-substituted n-alkylanilines'1985 4,460,375'Dyeing-stable monoazo dyestuff, a process for its preparation, and its use'1984 4,422,854'Transfer printing support, process for the manufacture thereof, with blue azo dye:di-cyano-nitro-phenyl-azo aniline'1983 4,401,692'Transfer-printing support'1983 4,381,262'Water-insoluble azo dyestuffs, their manufacture and their use'1983 4,319,880'Monoazo dyestuff being stable under dyeing conditions; its manufacture and its use'1982 4,311,836'Water-insoluble azlactone dyestuffs, processes for their preparation and their use for dyeing or printing synthetic fiber materials'1982 4,293,306'Process for the dyeing and printing of hydrophobic synthetic organic fiber materials with water-insoluble azo dyestuffs'1981 4,097,444'Process for the dyeing of water-insoluble thermoplastic polymers and polycondensates in the mass'1978 4,093,585'Process for the dyeing of water-insoluble thermoplastic polymers and polycondensates in the mass'1978 4,007,213'Process for preparing 1-(N-.beta.-cyanethylaminol-3-acylaminobenzenes'1977 3,951,591'Process for dyeing synthetic fiber materials'1976 3,930,793'Process for the dyeing of synthetic fiber materials from organic solvents'1976 3,930,794'Process for the dyeing of synthetic fiber materials from organic solvents'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1987Patents assigned to HOECHST AG (14)· patent assignee history

1976–1978Based in Frankfurt am Main, DE· patent location history

1981–1987Based in Kelkheim, DE· patent location history

1983Patents assigned to CASSELLA FARBWERKE MAINKUR AG (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HOECHST AG	14	1976–1987
CASSELLA FARBWERKE MAINKUR AG	1	1983

Locations

Location	Patents	Span
Kelkheim, DE	9	1981–1987
Frankfurt am Main, DE	6	1976–1978