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Inventor

Ortwin Grzanna

Inventor
Essen, DE

Overview

1→
Patents
1987
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 1 as inventor

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

H02Gprimary
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
Y10TTechnical subjects covered by former us classification33%
PatentTitleYear
4,693,767'Cable sleeve with a device cross-shaped in cross-section for support of cable ends entering the cable sleeves'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to ROSE WALTER GMBH & CO KG (1)· patent assignee history
1987Based in Essen, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ROSE WALTER GMBH & CO KG11987
Locations
LocationPatentsSpan
Essen, DE11987