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Inventor

Heinz Gretz

Inventor
Hamburg, DE

Overview

1→
Patents
1981
Patent span
Human necessities
Primary field (CPC A)

Patents· 1 as inventor

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

A24Cprimary
A24CMachines for making cigars or cigarettes33%
B23KSoldering or unsoldering33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
PatentTitleYear
4,249,545'Method and apparatus for perforating the envelopes of filter cigarettes or the like'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to HAUNI WERKE KOERBER & CO KG (1)· patent assignee history
1981Based in Hamburg, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HAUNI WERKE KOERBER & CO KG11981
Locations
LocationPatentsSpan
Hamburg, DE11981