Representative before the EPO

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Maria Deffner-Lehner has worked on the following 20 EPO patent applications which have been published in the last five years:

EP12809241

METHOD FOR PRODUCING ANTIFOAM COMPOSITIONS

IPC classification:
B01D 19/04, C08K 3/36, C08L 83/04
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP14177845

Method of stabilizing siloxanes having terminal hydroxy groups

IPC classification:
C08G 77/16
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP13714975

ORGANOPOLYSILOXANE GELS

IPC classification:
A61K 8/89, C08G 77/50, C08L 83/04, C08L 83/07
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP13719128

DEFOAMER FORMULATIONS COMPRISING ORGANOPOLYSILOXANES

IPC classification:
B01D 19/04, C08G 77/50, C08L 83/14
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP13728394

ANTIFOAMING AGENTS AND USE THEREOF IN DETERGENTS

IPC classification:
B01D 19/04, C08G 77/26, C11D 3/00, C11D 3/37
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
GRANT OF PATENT INTENDED
EP13734079

METHOD FOR PRODUCING ORGANOPOLYSILOXANES

IPC classification:
C08G 77/04, C08G 77/08, C08G 77/10, C08G 77/50
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
PATENT GRANTED
EP13794842

FILLER-CONTAINING SILICONE COMPOSITIONS

IPC classification:
C08K 3/08, C08K 3/40, C09D 183/04
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP11743478

PROCESS FOR PRODUCING SILOXANE COPOLYMERS WITH URETHANE-SULPHONAMIDO LINKING GROUPS

IPC classification:
C08G 18/28, C08G 18/48, C08G 18/67, C08G 18/71, C08G 77/26, C08G 77/28, C08G 77/445, C08G 77/458, C08G 77/46, C08L 83/12
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP11743479

BETA-KETOCARBONYLQUAT COMPOUNDS AND PROCESS FOR THE PREPARATION THEREOF

IPC classification:
C07C 219/06, C07C 235/74
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP14728963

PROCESS FOR DEFOAMING AQUEOUS COMPOSITIONS CONTAINING SURFACTANTS

IPC classification:
B01D 19/04, C08L 83/08
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
PATENT GRANTED
EP11748613

EMULSIONS OF ORGANOPOLYSILOXANES WITH ACID AND BASIC GROUPS AND PROCESS FOR THE PRODIUCTION THEREOF

IPC classification:
C08G 77/26, C08J 3/05, C09D 183/08
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP11714249

ANTIFOAM COMPOSITIONS

IPC classification:
B01D 19/04, C08L 83/04, C11D 3/00, C11D 3/37, D21C 3/28, D21H 21/12
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP11802914

COMPOSITIONS COMPRISING QUAT COMPOUNDS AND ORGANOPOLYSILOXANES

IPC classification:
C07C 225/06, C08J 3/03, C08J 5/02, C08L 83/04, C11D 3/37
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP11802913

SILICONE ASPARTATE COPOLYMERS

IPC classification:
C08G 77/388, C08G 77/445, C08G 77/46, C08J 3/03, C08L 83/12
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP14821110

POLYORGANOSILOXANE GELS HAVING GLYCOSIDE GROUPS

IPC classification:
C08G 77/14, C08L 83/04
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
EXAMINATION REQUESTED
EP14821112

POLYORGANOSILOXANE GELS HAVING POLYETHER GROUPS

IPC classification:
C08G 77/46, C08L 83/04
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
EXAMINATION REQUESTED
EP14816256

SURFACTANT-FREE ORGANOPOLYSILOXANE INVERT EMULSIONS

IPC classification:
A61K 8/06, A61K 8/894, C08L 83/12
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
The patent has been granted
EP16702486

ORGANOPOLYSILOXANE COMPOSITIONS WHICH CAN BE CROSSLINKED BY MEANS OF A CONDENSATION REACTION

IPC classification:
C08L 83/04
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
EXAMINATION REQUESTED
EP15777939

PROCESS FOR SILANE OLIGOMER COMPOSITION AND APPLICATION THEREOF

IPC classification:
C07F 7/18, C08G 77/04, C08G 77/14
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
Request for examination was made
EP16721381

ANTI-FOAMING AGENT AND USE OF SAME IN DETERGENTS

IPC classification:
B01D 19/04, C11D 3/00, C11D 3/37
Applicant:
Wacker Chemie AG
Agent:
Maria Deffner-Lehner, Wacker Chemie AG
Status:
Request for examination was made

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