Representative before the EPO

Employment test 51 - 200 employees
Company dna kolster oy ab
operating since 1987
1070.39
Headquarter in Helsinki and 6 offices
active in Legal Services and IP Consulting

Maija-Liisa Puranen has worked on the following 4 EPO patent applications which have been published in the last five years:

EP11791990

SEPARATION PROCESS

IPC classification:
B01D 61/02, C13B 20/16, C13K 13/00
Applicant:
DuPont Nutrition Biosciences ApS
Agent:
Maija-Liisa Puranen, Kolster Oy Ab
Agent:
DuPont EMEA
Status:
APPLICATION WITHDRAWN
EP12184501

Pretreatment method for producing water-soluble sugars from lignocellulosic material

IPC classification:
C08B 37/00, C08H 8/00, C12P 7/10, C13K 1/02, D21C 3/04
Agent:
Maija-Liisa Puranen, Kolster Oy Ab
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP11762073

SEPARATION PROCESS

IPC classification:
B01D 15/18, C07C 229/12, C13B 35/06, C13K 13/00
Applicant:
DuPont Nutrition Biosciences ApS
Agent:
Maija-Liisa Puranen, Kolster Oy Ab
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP11762075

SEPARATION PROCESS

IPC classification:
B01D 15/18, C07C 229/12, C13B 35/06, C13K 13/00
Applicant:
DuPont Nutrition Biosciences ApS
Agent:
Maija-Liisa Puranen, Kolster Oy Ab
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT

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