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Inventor

David Karlen

Inventor
Vasteras, SE

Overview

10→
Patents
2012–2019
Patent span
Electricity
Primary field (CPC H)

Patents· 10 as inventor

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

H01Hprimary
H01HElectric switches55%
LOC1336%
Y10TTechnical subjects covered by former us classification9%
PatentTitleYear
10,347,436Switching device20199,928,971'Electrical contact tip for switching applications and an electrical switching device'2018D0788714'Contactor'2017D0781243'Contactor'2017D0781242'Contactor'2017D0780698'Contactor'20179,455,098'Electrical circuit switch with variable gear ratio'20169,324,519'Switching device'20168,742,875'Contactor'20148,314,670'Switching device'2012

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012–2014Patents assigned to ABB AB (2)· patent assignee history
2012–2016Patents assigned to KARLEN DAVID (2)· patent assignee history
2012–2019Based in Vasteras, SE· patent location history
2014Patents assigned to COMAN OVE (1)· patent assignee history
2016–2019Patents assigned to ABB SCHWEIZ AG (7)· patent assignee history
2016Patents assigned to ABB TECHNOLOGY LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ABB SCHWEIZ AG72016–2019
ABB AB22012–2014
KARLEN DAVIDself22012–2016
ABB TECHNOLOGY LTD12016
COMAN OVE12014
Locations
LocationPatentsSpan
Vasteras, SE102012–2019