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Inventor

Siegfried Gugel

Inventor
Möhrendorf, DE

Overview

4→
Patents
1987–2013
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.

B23Kprimary
B23KSoldering or unsoldering50%
Y10TTechnical subjects covered by former us classification33%
B24BMachines, devices, or processes for grinding or polishing17%
PatentTitleYear
8,539,673'Method and device for machining a sealing seat of a shut-off valve'20138,217,295'Method for producing a welded connection for use in a corrosive environment'20124,757,935'Method and device for flushing the inside surface of a pipe in the vicinity of a welded seam'19884,698,474'Welding tongs for connecting two abutting pipe ends by arc welding'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1988Patents assigned to KRAFTWERK UNION AG (2)· patent assignee history
1987Based in Erlangen, DE· patent location history
1988Based in Mohrendorf, DE· patent location history
2012–2013Patents assigned to GUEGEL SIEGFRIED (2)· patent assignee history
2012Patents assigned to AREVA NP GMBH (1)· patent assignee history
2012Patents assigned to BRUECKNER ERHARD (1)· patent assignee history
2012–2013Based in Möhrendorf, DE· patent location history
2013Patents assigned to AREVA GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GUEGEL SIEGFRIED22012–2013
KRAFTWERK UNION AG21987–1988
AREVA GMBH12013
AREVA NP GMBH12012
BRUECKNER ERHARD12012
Locations
LocationPatentsSpan
Möhrendorf, DE22012–2013
Mohrendorf, DE11988
Erlangen, DE11987