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Inventor

Siegfried Schiebler

Inventor
Bad Soden, DE

Overview

3→
Patents
1976–1994
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

A62Dprimary
A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents11%
C07CAcyclic or carbocyclic compounds11%
C07DHeterocyclic compounds11%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments11%
C09DCoating compositions, e.g. paints, varnishes or lacquers11%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices11%
G03GElectrography11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
5,342,723'Biscationic acid amide and acid imide derivatives as charge controllers'19945,254,796'Oxidation process'19933,984,433'Process for preparing copper phthalocyanine pigments of the .alpha.-modification'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1994Patents assigned to HOECHST AG (3)· patent assignee history
1976Based in Frankfurt am Main, DE· patent location history
1993–1994Based in Bad Soden, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HOECHST AG31976–1994
Locations
LocationPatentsSpan
Bad Soden, DE21993–1994
Frankfurt am Main, DE11976