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Inventor

Siegfried Keil

Inventor
Gross-Bieberau, DE

Overview

4→
Patents
2001–2008
Patent span
LOC
Primary field

Patents· 4 as inventor

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

LOC19primary
LOC19100%
PatentTitleYear
D0567288'Writing instrument'2008D0485574'Writing utensil'2004D0443896'Writing instrument'2001D0437888'Writing instrument'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001Patents assigned to MERZ & KRELL (2)· patent assignee history
2001–2004Based in Gross-Bieberau, DE· patent location history
2004–2008Patents assigned to MERZ & KRELL GMBH & CO KGAA (2)· patent assignee history
2008Based in Gross Grönau, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MERZ & KRELL22001
MERZ & KRELL GMBH & CO KGAA22004–2008
Locations
LocationPatentsSpan
Gross-Bieberau, DE32001–2004
Gross Grönau, DE12008