Representative before the EPO

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Technology Company

Representative before the EPO

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no operation time available
1 office
Technology Company

Michael Witz has worked on the following 15 EPO patent applications which have been published in the last five years:

EP11701137

MACROMOLECULAR AMPHIPHILIC COMPOUNDS AS WATER RETENTION AGENTS FOR CONSTRUCTION CHEMICAL SYSTEMS, ESPECIALLY FOR CEMENTING OF BOREHOLES

IPC classification:
C04B 24/28, C04B 28/02, C08G 18/28, C08G 18/48, C08G 18/79
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
EXAMINATION IN PROGRESS
EP11700857

USE OF CSH SUSPENSIONS IN CEMENTING WELLS

IPC classification:
C04B 22/00, C04B 24/26, C09K 8/467
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
EXAMINATION REQUESTED
EP11175680

Use of polylysine as shale inhibitor

IPC classification:
C08G 69/10, C09K 8/035, C09K 8/60
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12187200

Fluorinated polymerizable compound

IPC classification:
C08G 65/00
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP11843565

USE OF HYDROPHOBICALLY ASSOCIATING COPOLYMER AS ADDITIVE IN SPECIFIC OILFIELD APPLICATIONS

IPC classification:
C08F 20/28, C08F 20/56, C09K 8/035, C09K 8/40, C09K 8/588, C09K 8/60, C09K 8/68
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
EXAMINATION REQUESTED
EP12729501

USE OF HYPERBRANCHED POLYLYSINE AS SHALE INHIBITOR

IPC classification:
C08G 69/10, C09K 8/035, C09K 8/60
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
EXAMINATION IN PROGRESS
EP12791501

PREPARING CYCLOCARBONATE-FUNCTIONALIZED COMPOUNDS

IPC classification:
C07D 317/38, C07D 407/14
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP13700093

USE OF TERPOLYMERS AS FLUID LOSS ADDITIVES IN WELL CEMENTING

IPC classification:
C09K 8/12, C09K 8/487
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13178707

Pumpable, storage-stable suspension of fibres in an organic phase

IPC classification:
B01F 17/00
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13188044

Use of a chemically modified polysaccharide protein blend as additive for drilling fluids

IPC classification:
C08B 31/00, C08H 1/00, C08H 99/00, C08L 3/04, C08L 89/00, C09K 8/08, C09K 8/20
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13728161

USE OF VANADIUM-CONTAINING PARTICLES AS A BIOCIDE

IPC classification:
A01N 25/04, A01N 25/08, A01N 25/34, A01N 59/00, B01J 23/22, C01G 31/02
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13190998

Geopolymer foam formulation

IPC classification:
C04B 28/00, C04B 103/40, C04B 111/28, C04B 111/52
Applicant:
Construction Research & Technology GmbH
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13726557

BIODEGRADABLE GRAFT COPOLYMER ANTI -ACCRETION ADDITIVE FOR WATER - BASED DRILLING FLUIDS

IPC classification:
C09K 8/08, C09K 8/20, C09K 8/528
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Chemicals GmbH
Status:
EXAMINATION REQUESTED
EP13814137

POLYUREA SILICATE RESIN FOR WELLBORE APPLICATION

IPC classification:
C08G 18/38, C09K 8/508
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Solutions GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP14728591

PUMPABLE SUSPENSION OF FIBRES IN AN ORGANIC PHASE, SAID SUSPENSION HAVING A LONG SHELF-LIFE

IPC classification:
B01F 17/00
Applicant:
BASF SE
Agent:
Michael Witz, BASF Construction Solutions GmbH
Status:
PATENT GRANTED

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