Inventor

Werner Stephan

Inventor
Wuppertal, DE

Overview

17→
Patents
1989–2004
Patent span
Chemistry
Primary field (CPC C)

Patents· 17 as inventor

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

C09Dprimary
C09DCoating compositions, e.g. paints, varnishes or lacquers30%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds27%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds12%
Y10TTechnical subjects covered by former us classification12%
C07CAcyclic or carbocyclic compounds3%
C08JWorking-up3%
C08LCompositions of macromolecular compounds3%
C09KMaterials for miscellaneous applications, not provided for elsewhere3%
C11DDetergent compositions3%
G06FElectric digital data processing3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2000Patents assigned to HERBERTS GMBH (6)· patent assignee history
1989–2004Based in Wuppertal, DE· patent location history
1989Based in Berlin, DE· patent location history
1990–1996Based in Augsburg, DE· patent location history
1992–1998Patents assigned to HERBERTS & CO GMBH (6)· patent assignee history
1995Patents assigned to HERBERTS GES MIS BESCHRANKTER (1)· patent assignee history
1996Patents assigned to AT & T GLOBAL INF SOLUTION (1)· patent assignee history
2004Patents assigned to DU PONT (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HERBERTS & CO GMBH61992–1998
HERBERTS GMBH61989–2000
AT & T GLOBAL INF SOLUTION11996
DU PONT12004
HERBERTS GES MIS BESCHRANKTER11995
Locations
LocationPatentsSpan
Wuppertal, DE141989–2004
Augsburg, DE21990–1996
Berlin, DE11989