Representative before the EPO

Employment test 51 - 200 employees
Company dna arnold plus siedsma
operating since 1920
Headquarter in The Hague and 13 offices
active in Legal Services, IP Consulting, IP Portfolio Processing, and IP-related Communication Service

We have observed 40 EP applications Wilhelmina Johanna Slikker has served for within the last five+ years. (We consider all applications which have an EP A1 or A2 publication dated after October 16, 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:

EP12720682

BACKREST, METHOD FOR ADJUSTING A BACKREST AND (WHEEL) CHAIR PROVIDED WITH A BACKREST

IPC classification:
A61G 5/12, A61G 5/10, A47C 7/42, B29C 44/00
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
PATENT GRANTED
EP12724772

ELECTRIC SUPPLY ASSEMBLY FOR AT LEAST ONE LED

IPC classification:
H05B 33/08
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12724773

LAMP ASSEMBLY AND METHOD FOR MOUNTING SUCH A LAMP ASSEMBLY TO A STRUCTURAL ELEMENT

IPC classification:
F21S 8/06, F21S 4/00
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP14157523

Method for manufacturing microfluidic chips, device for functionalizing microfluidic chips, microfluidic chip and device for holding a microfluidic chip

IPC classification:
B81C 1/00, B81B 1/00, B01L 3/00, B01J 19/00
Applicant:
Micronit Microfluidics BV
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION IN PROGRESS
EP12794562

METHOD FOR DRAINING SOIL USING A FILTRATION MEANS

IPC classification:
F26B 9/00, C02F 11/12
Agent:
Nederlandsch Octrooibureau N.V.
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION IN PROGRESS
EP14165773

Device for supporting at least a part of the body of a person and method for adjusting such a device

IPC classification:
A61F 5/32, A61F 5/14, A61F 5/05, A61F 5/02, A61F 5/01
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
PATENT GRANTED
EP12821152

METHOD OF BONDING TWO SUBSTRATES AND DEVICE MANUFACTURED THEREBY

IPC classification:
H01L 23/10, H01L 21/50, B81C 1/00
Applicant:
Micronit Microfluidics BV
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION IN PROGRESS
EP11811425

SYSTEM FOR DRYING AND/OR COOLING AN AIRFLOW

IPC classification:
F24F 5/00, F24F 3/14
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION REQUESTED
EP13199430

Edge beam, door and method for manufacturing an edge beam

IPC classification:
E06B 5/16, E06B 3/70
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP14180231

System for generating electrical energy from heat in an artificial turf

IPC classification:
H01L 35/00, F02G 1/00, E01C 13/08, E01C 13/02
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
GRANT OF PATENT INTENDED
EP12724416

SANDWICH PANEL, METHOD OF BUILDING SUCH A SANDWICH PANEL, A CORE OF SUCH A SANDWICH PANEL, AND A BUILDING BUILT OF A PLURALITY OF SUCH SANDWICH PANELS

IPC classification:
E04C 5/06, E04B 2/84, E02D 29/02
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION IN PROGRESS
EP12719097

PIPE FOR EXTRACTING RESERVOIR FLUIDS PRESENT IN AN UNDERGROUND RESERVOIR AND METHOD OF LOCALLY INCREASING THE THICKNESS OF SUCH A PIPE

IPC classification:
E21B 43/12, E21B 34/06
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
GRANT OF PATENT INTENDED
EP13739829

METHOD FOR MANUFACTURING AN ELEMENT OF THERMOPLASTIC COMPOSITE MATERIAL AND AN ELEMENT OF THERMOPLASTIC COMPOSITE MATERIAL OBTAINED THEREWITH

IPC classification:
B29C 70/50, B29C 70/20, B29B 15/12
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION IN PROGRESS
EP13739830

METHOD FOR MANUFACTURING AN ELEMENT OF COMPOSITE MATERIAL COMPRISING A NON- CRIMP FABRIC AND POLYETHERIMIDE (PEI) AND AN ELEMENT OF COMPOSITE MATERIAL OBTAINED THEREWITH

IPC classification:
B29C 70/50, B29C 70/20, B29B 15/12
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION IN PROGRESS
EP14191528

Plastic fastener

IPC classification:
F16B 21/08, F16B 19/00, F16B 13/02, F16B 12/24, E06B 3/96
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
PATENT GRANTED
EP13767141

DEVICE FOR PASTEURIZING A MASS OF FOODSTUFF

IPC classification:
A23L 3/22, A23L 3/005, A23B 4/01, H05B 6/54
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
GRANT OF PATENT INTENDED
EP13771235

DEVICE AND METHOD FOR ACTIVATING A CAPILLARY-STOP VALVE OF A DEVICE

IPC classification:
F16K 99/00, B01L 3/00
Applicant:
Micronit Microfluidics BV
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
GRANT OF PATENT INTENDED
EP13801864

METHOD FOR FORMING AN ELECTRICALLY CONDUCTIVE VIA IN A SUBSTRATE

IPC classification:
H01L 23/14, H01L 21/683, H01L 21/48
Applicant:
Micronit Microfluidics BV
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
GRANT OF PATENT INTENDED
EP13801812

DEVICE AND METHOD FOR PERFORATING A FILM ADHERED WITH AN ADHESIVE TO A BACKING MATERIAL, AND A FILM PERFORATED THEREWITH

IPC classification:
B32B 38/04, B26F 1/24
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12823271

MOTORCYCLE

IPC classification:
B62M 17/00, B62K 25/08, B62K 21/00, B62K 19/16, B62K 13/00, B62K 11/08, B62J 15/00
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13811535

LAYER FOR REDUCING FLUID RESISTANCE

IPC classification:
F15D 1/12, B64C 21/10
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION IN PROGRESS
EP15166127

DEVICE FOR SUPPORTING A CYCLE

IPC classification:
B62H 3/04, B60R 9/10
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION REQUESTED
EP15173166

ASSEMBLY OF A WINDOW- OR DOOR-FRAME AND A WINDOW OR DOOR

IPC classification:
E06B 3/70, E06B 5/16
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP14729974

FIRE-RESISTANT OR FIRE-RETARDANT MATERIAL, METHOD FOR MANUFACTURING A FIRE-RESISTANT OR FIRE-RETARDANT MATERIAL, CONSTRUCTION ELEMENT AT LEAST PARTIALLY COVERED WITH A FIRE-RESISTANT OR FIRE-RETARDANT MATERIAL

IPC classification:
B32B 3/12, B32B 3/06, B32B 3/02, B32B 1/06, B32B 27/08, B32B 7/04, B32B 33/00
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP14737034

DEVICE FOR PROVIDING A LIVING SPACE

IPC classification:
B60P 3/36, B60P 3/34
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION IN PROGRESS
EP16157146

BIOMASS DIGESTER

IPC classification:
C12M 1/34, C12M 1/00, C12M 1/107
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION REQUESTED
EP16157147

DIGESTER AND METHOD FOR DETECTING A PRESENCE OF FOAM IN A DIGESTER

IPC classification:
G01N 35/10, G01N 21/90, C02F 11/04, C02F 1/00
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION REQUESTED
EP14799044

DEVICE FOR CLEANING A STYLUS OF A MEASURING PROBE

IPC classification:
F26B 21/00, B08B 5/02, G01N 35/10, B08B 3/02
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION REQUESTED
EP14828351

DEVICE AND METHOD FOR MEASURING A VOLUME OF A LIQUID AND METHOD AND DEVICE FOR CALIBRATING A LIQUID DISPENSING SYSTEM

IPC classification:
G01N 33/49, G01B 11/00, G01B 13/00, G01F 13/00
Applicant:
Micronit Microfluidics BV
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION REQUESTED
EP14831105

IMPELLER FOR A PUMP OR TURBINE, AND PUMP OR TURBINE WITH IMPELLER

IPC classification:
F04D 29/52, F03B 3/10, F04D 29/16
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION REQUESTED
EP15732458

DEVICE FOR FIXING A GUTTER TO A BUILDING CONSTRUCTION, BUILDING CONSTRUCTION WITH SUCH A DEVICE, FIXING MEMBER, SUPPORT MEMBER

IPC classification:
F16B 43/02, F16B 1/00, E04D 13/072
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
EXAMINATION REQUESTED
EP16199856

METHOD AND GAS REFINING INSTALLATION FOR PROVIDING A GAS STREAM HAVING A WOBBE INDEX WITHIN A REQUIRED RANGE

IPC classification:
F23K 5/00
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
Request for examination was made
EP16206831

TEXTURE MATERIAL AND SURFACE ON WHICH THE TEXTURE MATERIAL ACCORDING TO THE INVENTION IS APPLIED

IPC classification:
E01C 5/22, B29C 59/00, E04F 15/02, E01C 11/24, B32B 3/30, B32B 7/12, C08J 5/18
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
Request for examination was made
EP16762885

ASSEMBLY AND METHOD FOR DELIVERING A STACK OF ROOF COVERING PANELS AT A LOCATION OF USE

IPC classification:
B65D 85/62, E04D 15/04, B65G 59/00, B66C 1/10, E04G 21/16
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
Request for examination was made
EP16201413

APPARATUS FOR REGULATING THE CONCENTRATION OF GLUCOSE IN THE BLOOD OF A PERSON

IPC classification:
A61B 5/00, A61B 5/11, A61B 5/02, A61B 5/01, A61M 5/172, A61B 5/145
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
The application has been published
EP15794981

THERMOACOUSTIC ENERGY CONVERSION SYSTEM

IPC classification:
F25B 9/14
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
Request for examination was made
EP17160034

EXERCISE DEVICE

IPC classification:
A63B 22/00
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
The application has been published
EP18153281

SILL ASSEMBLY AND SILL

IPC classification:
E06B 3/964, E06B 1/70, E06B 3/96
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
The application has been published
EP17154869

SILL ASSEMBLY AND SILL

IPC classification:
E06B 3/96
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
The application has been published
EP17155781

ASSEMBLY WITH REPLACEABLE TAMPER-EVIDENT SEAL, REPLACEABLE TAMPER-EVIDENT SEAL AND METHOD FOR USING SUCH AN ASSEMBLY

IPC classification:
B65D 55/02, B65D 43/02
Agent:
Wilhelmina Johanna Slikker, Arnold & Siedsma
Status:
The application has been published

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