Contact

Representative before the EPO

Employment test 51 - 200 employees
Company dna maiwald patentanwalts gmbh
operating since 1995
Headquarter in Munich and 4 offices
active in Legal Services and IP Consulting

Melanie Boos has worked on the following 48 EPO patent applications which have been published in the last five years:

EP12733156

HYDROPHOBISED CALCIUM CARBONATE PARTICLES

IPC classification:
D21C 9/08, D21H 21/02
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12740542

MICRONIZED CACO3 SLURRY INJECTION SYSTEM FOR THE REMINERALIZATION OF DESALINATED AND FRESH WATER

IPC classification:
C02F 1/68
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12750591

PROCESS FOR PREPARING SELF-BINDING PIGMENT PARTICLE SUSPENSIONS

IPC classification:
C09C 1/02, D21H 17/00
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
GRANT OF PATENT INTENDED
EP12778745

SURFACE -TREATED CALCIUM CARBONATE AND ITS USE IN WATER PURIFICATION AND FOR THE DEWATERING OF SLUDGES AND SEDIMENTS

IPC classification:
B01J 20/04, B01J 20/32, C02F 1/28, C02F 1/56, C02F 1/66, C02F 11/14, C02F 103/28
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP13701255

INSTALLATION FOR THE PURIFICATION OF MINERALS, PIGMENTS AND/OR FILLERS AND/OR THE PREPARATION OF PRECIPITATED EARTH ALKALI CARBONATE

IPC classification:
C09C 1/02, C09C 3/04
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
PATENT GRANTED
EP13723043

TREATMENT OF CALCIUM CARBONATE CONTAINING MATERIALS FOR INCREASED FILLER LOAD IN PAPER

IPC classification:
C09C 1/02, D21H 17/00
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
GRANT OF PATENT INTENDED
EP13187392

Micronized earth alkali carbonate-containing material for regulating the pH of a soil

IPC classification:
C09K 17/06
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP13192156

Process for improving the particle size distribution of a calcium carbonate-containing material

IPC classification:
C01F 11/18
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP13734800

SURFACE MODIFIED CALCIUM CARBONATE CONTAINING MINERALS AND ITS USE

IPC classification:
C09C 1/02, D21H 17/00
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP13196827

Improved gel stability

IPC classification:
C09K 8/68
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP13739406

REGENERATABLE ION EXCHANGE MATERIAL FOR REDUCING THE AMOUNT OF CO2

IPC classification:
B01D 53/14, B01D 53/62, B01J 20/12, C01F 5/24, C01F 11/18, C02F 1/66, C02F 5/06, C02F 5/08
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
APPLICATION WITHDRAWN
EP13766934

PRINT MEDIUM

IPC classification:
C08K 3/26, D21H 19/38, D21H 21/52
Applicant:
Omya International AG
Agent:
Multiple attorneys, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP14164224

MIC reduction with lithium ions

IPC classification:
A01N 31/08, A01N 35/02, A01N 35/08, A01N 43/40, A01N 43/80, A01N 43/90, A01N 47/02, A01N 47/40, A01N 47/44, A01N 59/00, A01P 1/00, A01P 3/00
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP14164890

Adsorbing and/or reduction of the amount of organic materials in an aqueous medium by using colloidal precipitated calcium carbonate

IPC classification:
C02F 1/28, D21C 9/08, D21H 21/02
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP14168478

Fiber board product comprising a calcium carbonate-containing material

IPC classification:
C04B 26/12, C04B 26/14, C04B 26/16
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
PATENT GRANTED
EP14169915

Calcium carbonate for rotogravure printing medium

IPC classification:
B41M 5/52, D21H 19/38
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
PATENT GRANTED
EP14169923

Process for the preparation of crumbs comprising calcium carbonate

IPC classification:
C01F 11/18, C08K 3/00, C09C 1/02
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
PATENT GRANTED
EP14171275

Polymer composition filled with an inorganic filler material mixture

IPC classification:
C08L 67/02, C08L 67/04, C08L 101/16
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP14175252

Multifilament polyester fibres

IPC classification:
D01F 1/10, D01F 6/62
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP14705150

NEW SURFACE TREATMENT OF WHITE MINERAL MATERIALS FOR APPLICATION IN PLASTICS

IPC classification:
C08K 5/49
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP14180249

Antiseptic product, process for preparing same and its use

IPC classification:
A01N 55/02, A01N 59/00, A01N 59/08, A01P 1/00
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP15182223

PROCESS FOR PREPARING SELF-BINDING PIGMENT PARTICLES

IPC classification:
C09C 1/02, D21H 17/00, D21H 17/26, D21H 17/69
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP14177392

ACID WASTEWATER TREATMENT

IPC classification:
C02F 1/00, C02F 1/38, C02F 1/52, C02F 1/66, C02F 101/10, C02F 101/20, C02F 103/10, C02F 103/14, C02F 103/16, C02F 103/24, C02F 103/32
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP14722195

MULTIPLE BATCH SYSTEM FOR THE PREPARATION OF A SOLUTION OF CALCIUM HYDROGEN CARBONATE SUITABLE FOR THE REMINERALIZATION OF DESALINATED WATER AND OF NATURALLY SOFT WATER

IPC classification:
A23L 2/52, A23L 2/54, C02F 1/68
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP14199037

Method for the production of a pharmaceutical delivery system

IPC classification:
A61K 9/20, A61K 31/167
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15150367

Process to obtain an ultrafine GCC with high light scattering properties and high solid content

IPC classification:
C01F 11/18, C09C 1/02
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15153130

Process for manufacturing a solution of an earth alkali hydrogen carbonate

IPC classification:
C02F 1/66, C02F 1/68
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP14780446

MICRONIZED EARTH ALKALI CARBONATE-CONTAINING MATERIAL FOR REGULATING THE PH OF A SOIL

IPC classification:
C09K 17/06
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
GRANT OF PATENT INTENDED
EP15157025

High solids PCC with cationic additive

IPC classification:
C01F 11/18
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP14790643

PROCESS FOR IMPROVING THE PARTICLE SIZE DISTRIBUTION OF A CALCIUM CARBONATE-CONTAINING MATERIAL

IPC classification:
C01F 11/18
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15160666

Easy to disperse calcium carbonate to improve hot tack strength

IPC classification:
B32B 27/32, C08J 3/20, C08J 3/22, C09C 1/02, C09C 3/08, C09D 123/00
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP14809895

IMPROVED GEL STABILITY

IPC classification:
C09K 8/68
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15705568

PROCESS FOR THE PREPARATION OF A MINERAL FILLER PRODUCT

IPC classification:
C09C 1/02
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15173414

SURFACE TREATED FILLER MATERIAL PRODUCT FOR ALPHA-NUCLEATION OF POLYOLEFINS

IPC classification:
C08K 3/26, C08K 5/09, C08K 5/098, C08L 23/06, C08L 23/12, C08L 23/20
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15179382

PRECIPITATED CALCIUM CARBONATE WITH IMPROVED RESISTANCE TO STRUCTURAL BREAKDOWN

IPC classification:
B01F 3/04, C01F 11/18
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP16192274

SELF-BINDING PIGMENT PARTICLE SUSPENSIONS

IPC classification:
B82Y 30/00, C09C 1/02, D21H 17/00, D21H 17/32, D21H 17/67, D21H 17/69, D21H 19/38, D21H 19/42, D21H 21/28
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15722105

FIBER BOARD PRODUCT COMPRISING A CALCIUM CARBONATE-CONTAINING MATERIAL

IPC classification:
C04B 26/12, C04B 26/14, C04B 26/16
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15190284

HIGH SOLIDS PCC WITH COPOLYMERIC ADDITIVE

IPC classification:
C01F 11/18, C09C 1/02
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15196997

CALCIUM CARBONATE FOR PARTICLE BOARDS

IPC classification:
B27N 3/02
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15202030

METAL OXIDES AND/OR HYDRATES THEREOF FOR STABILISING AN AQUEOUS PREPARATION AGAINST MICROBIAL GROWTH

IPC classification:
A01N 31/08, A01N 35/08, A01N 43/40, A01N 43/80, A01N 59/00, A01N 59/06, A01N 59/16, A01P 1/00, D21H 21/36
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP15202170

MICROBIAL CELL VIABILITY ASSAY FOR DETECTION OF OR DETERMINING SLURRY CONTAMINATION

IPC classification:
C12Q 1/66
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP16150612

IN-LINE COATED WOOD-BASED BOARDS

IPC classification:
B27N 3/02, B27N 3/04
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
Request for examination was made
EP16151285

WET SURFACE TREATMENT OF SURFACE-MODIFIED CALCIUM CARBONATE

IPC classification:
C01F 11/18, C08K 3/26, C09C 1/02
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
Request for examination was made
EP16151383

TREATMENT OF SURFACE-REACTED CALCIUM CARBONATE

IPC classification:
C09C 1/02
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
Request for examination was made
EP15763854

DRY PROCESS FOR PREPARING A SURFACE-MODIFIED ALKALINE EARTH METAL CARBONATE-CONTAINING MATERIAL

IPC classification:
A61K 8/19, C01F 11/18, C08K 3/22, C09C 1/02, D21H 19/38
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
Request for examination was made
EP17159307

METHOD FOR REDUCING THE AMOUNT OF CO2 USING A REGENERATABLE ION EXCHANGE MATERIAL

IPC classification:
B01D 53/02, B01D 53/14, B01D 53/62, B01D 53/82, B01D 53/85, B01D 53/96, B01J 20/12, B01J 39/02, B01J 39/14, C01F 5/24, C01F 11/18, C02F 1/66, C02F 5/06, C02F 5/08
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
Request for examination was made
EP16154570

INSTALLATION FOR THE PREPARATION OF AN AQUEOUS SOLUTION COMPRISING AT LEAST ONE EARTH ALKALI HYDROGEN CARBONATE

IPC classification:
A23L 2/54, C02F 1/44, C02F 1/68
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
Request for examination was made
EP16154567

PROCESS FOR THE PREPARATION OF AN AQUEOUS SOLUTION COMPRISING AT LEAST ONE EARTH ALKALI HYDROGEN CARBONATE

IPC classification:
A23L 2/54, B01D 61/14, C02F 1/44, C02F 1/66, C02F 1/68
Applicant:
Omya International AG
Agent:
Melanie Boos, Maiwald Patentanwalts GmbH
Status:
Request for examination was made

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