Representative before the EPO

Employment test 51 - 200 employees
Company dna kolster oy ab
operating since 1987
1186.79
Headquarter in Helsinki and 6 offices
active in Legal Services and IP Consulting

We have observed 10 EP applications Ari Petri Parta has served for within the last five+ years. (We consider all applications which have an EP A1 or A2 publication dated after July 17, 2013). Please note, that we only count EP applications, in which the name of the patent attorney is explicitly mentioned as representative. These EP applications are:

EP12153799

Non-isolated PV inverter system with ground current mitigation

IPC classification:
H02M 1/12, H02M 7/5387
Applicant:
ABB Research Ltd
Agent:
Ari Petri Parta, Kolster Oy Ab
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12151032

Active gate drive circuit

IPC classification:
H03K 17/16, H03K 17/0814
Applicant:
ABB Research Ltd
Agent:
Ari Petri Parta, Kolster Oy Ab
Status:
EXAMINATION REQUESTED
EP12157111

Integrated common mode and differential mode choke

IPC classification:
H01F 37/00, H01F 38/02, H01F 3/10
Applicant:
ABB Oy
Agent:
Ari Petri Parta, Kolster Oy Ab
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12153825

Method and apparatus for determining direction of fault

IPC classification:
G01R 31/08, H02H 3/08
Applicant:
ABB Technology AG
Agent:
Ari Petri Parta, Kolster Oy Ab
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12155878

Enclosure for housing electrical equipment

IPC classification:
H05K 7/20, H02B 1/56
Applicant:
ABB Oy
Agent:
Ari Petri Parta, Kolster Oy Ab
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12153017

Method and apparatus for monitoring air filter condition

IPC classification:
B01D 46/44, B01D 46/00
Applicant:
ABB Oy
Agent:
Ari Petri Parta, Kolster Oy Ab
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12151397

Method for detecting the correct rotational direction of a centrifugal apparatus, and a centrifugal apparatus assembly

IPC classification:
F04D 27/00, F04D 15/00
Applicant:
ABB Oy
Applicant:
ABB Technology Oy
Agent:
Ari Petri Parta, Kolster Oy Ab
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12153272

Method and arrangement in connection with photovoltaic power generator composed of series-connected photovoltaic modules

IPC classification:
G05F 1/67
Applicant:
ABB Oy
Agent:
Ari Petri Parta, Kolster Oy Ab
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12159868

Method and apparatus for adapting earth-fault protection settings in a three-phase electric network

IPC classification:
G01R 31/08, H02H 3/16, H02H 3/38
Applicant:
ABB Technology AG
Agent:
Ari Petri Parta, Kolster Oy Ab
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12157931

Method for controlling a grid-connected boost-buck full-bridge current-source inverter cascade for photovoltaic applications and device

IPC classification:
H02J 3/38, H02M 1/00, H02M 1/12, H02M 3/158, H02M 7/539
Applicant:
ABB Research Ltd
Agent:
Ari Petri Parta, Kolster Oy Ab
Status:
PATENT GRANTED

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