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

Vera Tiefbrunner has worked on the following 25 EPO patent applications which have been published in the last five years:

EP11799108

PROCESS FOR WATER BASED MINERAL MATERIAL SLURRY SURFACE WHITENING

IPC classification:
C09C 1/02, C09C 1/36, C09C 1/40, C09C 1/42, C09C 3/10, D21H 17/00, G01N 21/25
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP12186131

Rheologically stable aqueous mineral material suspensions comprising organic polymers having reduced volatile organic compound (VOC) content

IPC classification:
C09C 1/02, D21H 17/00
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12188419

Gastroretentive drug formulation and delivery systems and their method of preparation using functionalized calcium carbonate

IPC classification:
A61K 9/00, A61K 9/16, A61K 9/20
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12781346

NEW COATED CONTROLLED RELEASE ACTIVE AGENT CARRIERS

IPC classification:
A61K 9/16, A61K 9/20, A61K 9/50
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12185246

Print medium

IPC classification:
C04B 14/28, C08K 3/26, D21H 19/38, D21H 21/52
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12721553

PROCESS FOR MANUFACTURING COATED SUBSTRATES

IPC classification:
B41M 5/42, B41M 5/50, B41M 5/52
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
GRANT OF PATENT INTENDED
EP11716257

PROCESS FOR THE MANUFACTURE OF STRUCTURED MATERIALS USING NANO-FIBRILLAR CELLULOSE GELS

IPC classification:
D21C 9/00, D21H 11/18, D21H 17/67
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Agent:
EDP Patent Attorneys B.V.
Status:
EXAMINATION IN PROGRESS
EP14175451

Process for the production of nano-fibrillar cellulose gels

IPC classification:
C08J 3/00, C08J 3/075, D01F 2/02, D21B 1/04, D21B 1/30, D21C 9/00
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Agent:
EDP Patent Attorneys B.V.
Status:
GRANT OF PATENT INTENDED
EP14175471

Process for the production of nano-fibrillar cellulose suspensions

IPC classification:
D21B 1/16, D21C 9/00, D21D 1/00, D21H 11/00, D21H 11/18
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Agent:
EDP Patent Attorneys B.V.
Status:
GRANT OF PATENT INTENDED
EP13702068

A COMPOSITION AND METHOD FOR CONTROLLING THE WETTABILITY OF SURFACES

IPC classification:
C09C 1/02, D21H 17/00
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
GRANT OF PATENT INTENDED
EP13703833

MINERAL MATERIAL POWDER WITH HIGH DISPERSION ABILITY AND USE OF SAID MINERAL MATERIAL POWDER

IPC classification:
C09C 1/02, C09C 3/04, D21H 17/00
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP13765744

RHEOLOGICALLY STABLE AQUEOUS MINERAL MATERIAL SUSPENSIONS COMPRISING ORGANIC POLYMERS HAVING REDUCED VOLATILE ORGANIC COMPOUND (VOC) CONTENT

IPC classification:
C09C 1/02, D21H 17/00
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP13774198

GASTRORETENTIVE DRUG FORMULATION AND DELIVERY SYSTEMS AND THEIR METHOD OF PREPARATION USING FUNCTIONALIZED CALCIUM CARBONATE

IPC classification:
A61K 9/00, A61K 9/16, A61K 9/20
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP11719499

PROCESS FOR THE PRODUCTION OF GEL-BASED COMPOSITE MATERIALS

IPC classification:
D21C 9/00, D21H 11/18, D21H 17/67
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Agent:
EDP Patent Attorneys B.V.
Status:
The patent has been granted
EP11708477

FROTH FLOTATION PROCESS FOR THE SEPARATION OF SILICATES AND ALKALINE EARTH METAL CARBONATES USING A COLLECTOR COMPRISING AT LEAST ONE HYDROPHOBICALLY MODIFIED POLYALKYLENEIMINE

IPC classification:
B03D 1/01, B03D 101/02, C22B 26/00, C22B 26/20
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP14170578

METHOD FOR THE PRODUCTION OF GRANULES COMPRISING SURFACE-REACTED CALCIUM CARBONATE

IPC classification:
C09C 1/02
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
EXAMINATION IN PROGRESS
EP14173318

Method for the control of odour

IPC classification:
A61L 9/014
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
The patent has been granted
EP14173325

METHOD FOR THE PRODUCTION OF GRANULES COMPRISING SURFACE-REACTED CALCIUM CARBONATE

IPC classification:
C09C 1/02
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12154687

A COMPOSITION AND METHOD FOR CONTROLLING THE WETTABILITY OF SURFACES

IPC classification:
B05D 5/00, B05D 7/00, B05D 7/06, B05D 7/14, C08K 9/04, C09C 1/02, C09D 125/14, C09D 129/04, C09D 133/08, C09D 191/00, D21H 17/00, D21H 17/17, D21H 19/38, D21H 21/16
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
PATENT GRANTED
EP11190704

Process for stabilizing bacterial content of aqueous ground natural calcium carbonate and/or precipitated calcium carbonate and/or dolomite and/or surface-reacted calcium carbonate-comprising mineral preparations

IPC classification:
A01N 31/08, A01N 33/04, A01N 35/02, A01N 43/80, A01P 1/00, C09C 1/02, D21H 21/36
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP16167943

NEW COATED CONTROLLED RELEASE ACTIVE AGENT CARRIERS

IPC classification:
A61K 9/16, A61K 9/20, A61K 9/50
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP15161992

STRETCHABLE COATINGS

IPC classification:
B41M 5/52, C09D 133/12, D21H 19/38, D21H 19/56, D21H 19/58
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP11700451

METHOD FOR INCREASING THE PH OF AQUEOUS SUSPENSIONS OF CALCIUM CARBONATE-COMPRISING MATERIALS BY ADDING 2-((1-METHYLPROPYL)AMINO)ETHANOL

IPC classification:
C09C 1/02, H01B 1/12
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP15171409

USE OF SURFACE-REACTED CALCIUM CARBONATE AS ANTI-BLOCKING AGENT

IPC classification:
C08K 3/26, C09C 1/02, C09D 133/08
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
EXAMINATION REQUESTED
EP11701656

Coating composition comprising submicron calcium carbonate particles, production method therefor and use of the submicron calcium carbonate particles in coating compositions

IPC classification:
C09C 1/00, C09D 7/12
Applicant:
Omya International AG
Agent:
Vera Tiefbrunner, Maiwald Patentanwalts GmbH
Status:
PATENT GRANTED

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