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Inventor

Werner Huppertz

Inventor
Krefeld, DE

Overview

3→
Patents
1990–1998
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.

C25Dprimary
C25DProcesses for the electrolytic or electrophoretic production of coatings40%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests40%
H02HEmergency protective circuit arrangements20%
PatentTitleYear
5,754,383'Faulted circuit indicatior with variable load levelling circuit'19984,992,155'Circuitry for the electrolytic coloring of anodized aluminum surfaces'19914,915,801'Process for the electrolytic coloring of anodized aluminum surfaces'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1991Patents assigned to HENKEL KGAA (2)· patent assignee history
1990–1991Based in Krefeld, DE· patent location history
1998Patents assigned to HORSTMANN GMBH DIPL ING H (1)· patent assignee history
1998Based in Essen, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HENKEL KGAA21990–1991
HORSTMANN GMBH DIPL ING H11998
Locations
LocationPatentsSpan
Krefeld, DE21990–1991
Essen, DE11998