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Inventor

Walter Fritsch

Inventor
Bergisch Gladbach, DE

Overview

4→
Patents
1978–1994
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C22Bprimary
C22BProduction and refining of metals29%
B29CShaping or joining of plastics14%
B29LIndexing scheme associated with subclass b29c, relating to particular articles14%
C21BManufacture of iron or steel14%
F27BFurnaces, kilns, ovens or retorts in general14%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace14%
PatentTitleYear
5,372,491'Device for manufacturing plastic moldings and use of the device'19944,919,396'Apparatus for smelting meltable substances, particularly ore concentrates'19904,227,873'Kiln with overlying beds'19804,073,645'Process of smelting sulphidic copper ore concentrates'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1990Patents assigned to KLOECKNER HUMBOLDT DEUTZ AG (2)· patent assignee history
1978–1990Based in Bergisch Gladbach, DE· patent location history
1980Patents assigned to KLOECKNER HUMBOLDT WEDAG (1)· patent assignee history
1994Patents assigned to BRAUN PEBRA GMBH (1)· patent assignee history
1994Based in Altbach, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KLOECKNER HUMBOLDT DEUTZ AG21978–1990
BRAUN PEBRA GMBH11994
KLOECKNER HUMBOLDT WEDAG11980
Locations
LocationPatentsSpan
Bergisch Gladbach, DE31978–1990
Altbach, DE11994