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Inventor

Erkki Rajala

Inventor
Vaasa, FI

Overview

7→
Patents
1995–2008
Patent span
Electricity
Primary field (CPC H)

Patents· 7 as inventor

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

H02Hprimary
H02HEmergency protective circuit arrangements33%
H01HElectric switches22%
G05BControl or regulating systems in general11%
H01CResistors11%
H02KDynamo-electric machines11%
LOC1311%
PatentTitleYear
D0571303'Motorized change-over switch'20087,365,622'Switching device combination for capacitive loads connected to direct voltage'20086,628,485'Apparatus for limiting an electrical current'20036,555,984'Arrangement and method for an electric machine'20036,492,799'Monitor circuit for a current limiting device'20026,259,349'Electrical component with a constriction in a PTC polymer element'20015,424,900'Electronic auxiliary contact for a contactor'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995Patents assigned to ABB STROEMBERG KOJEET OY (1)· patent assignee history
1995–2008Based in Vaasa, FI· patent location history
2001–2003Patents assigned to ABB RESEARCH LTD (3)· patent assignee history
2001Based in Vassa, FI· patent location history
2003–2008Patents assigned to ABB OY (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ABB OY32003–2008
ABB RESEARCH LTD32001–2003
ABB STROEMBERG KOJEET OY11995
Locations
LocationPatentsSpan
Vaasa, FI61995–2008
Vassa, FI12001