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Inventor

Frank Kuhnke

Inventor
Essen, DE

Overview

3→
Patents
1991–2009
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 3 as inventor

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

E05Bprimary
E05BLocks25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
Y10TTechnical subjects covered by former us classification25%
A44BButtons, pins, buckles, slide fasteners, or the like13%
B65BMachines, apparatus or devices for, or methods of, packaging articles or materials13%
PatentTitleYear
7,634,929'Cylinder core'20096,722,717'Distance-variable closing stirrup for rotary-latch locks'20044,991,374'Packaging machine for slide-fastener manufacture'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to OPTI PATENT FORSCHUNG FAB (1)· patent assignee history
1991–2009Based in Essen, DE· patent location history
2004–2009Patents assigned to HUF HUELSBECK & FUERST GMBH (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HUF HUELSBECK & FUERST GMBH22004–2009
OPTI PATENT FORSCHUNG FAB11991
Locations
LocationPatentsSpan
Essen, DE31991–2009