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Inventor

Heinz Caspelherr

Inventor
Koln, DE

Overview

4→
Patents
1981–1998
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

C25Cprimary
C25CProcesses for the electrolytic production, recovery or refining of metals20%
B01FMixing, e.g. dissolving, emulsifying or dispersing10%
B23CMilling10%
B26FPerforating10%
B29BPreparation or pretreatment of the material to be shaped10%
B29CShaping or joining of plastics10%
B30BPresses in general10%
F16CShafts10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
5,733,423'Device for separation of cast thimbles from anode bars'19985,547,277'Preheating screw'19965,261,324'Roller bearing of a two-roller machine'19934,248,556'Method for smoothing the surface of bar material'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1996Patents assigned to KLOECKNER HUMBOLDT DEUTZ AG (3)· patent assignee history
1981–1993Based in Cologne, DE· patent location history
1996–1998Based in Koln, DE· patent location history
1998Patents assigned to DEUTZ AG (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KLOECKNER HUMBOLDT DEUTZ AG31981–1996
DEUTZ AG11998
Locations
LocationPatentsSpan
Koln, DE21996–1998
Cologne, DE21981–1993