Representative before the EPO
Partner/Owner

Employment test 1 - 10 employees
Company dna kaufmann
no operation time available
Headquarter in Dresden
active in Legal Services and IP Consulting

Sigfrid Kaufmann has worked on the following 27 EPO patent applications which have been published in the last five years:

EP11770679

METHOD FOR STRUCTURING BODIES

IPC classification:
B29C 59/02, B44B 5/00
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12179605

Method for manufacturing shaped textiles

IPC classification:
A41C 5/00, D02G 3/36
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12197389

Method for producing a ceramic workpiece

IPC classification:
B81C 99/00, G03F 7/00
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13709742

METHOD FOR STITCH-WELDING A FRONT FLANGE JOINT

IPC classification:
B23K 26/10, B23K 26/24, B23K 26/32
Applicant:
Volkswagen AG
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
GRANT OF PATENT INTENDED
EP13721588

LASER PROTECTION DEVICE IN THE SHAPE OF A FLEXIBLE CURTAIN-TYPE ELEMENT FOR DETECTING LASER RADIATION

IPC classification:
F16P 1/02, F16P 1/06, F16P 3/00, H01L 23/498, B23K 26/42
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
EXAMINATION IN PROGRESS
EP13762386

METHOD AND DEVICE FOR ADJUSTING THE AMOUNTS OR THE PARTIAL PRESSURES OF TWO GASES IN A LIQUID

IPC classification:
A61M 1/16
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
EXAMINATION IN PROGRESS
EP13759428

EXHAUST GAS FILTER DEVICE

IPC classification:
B01D 46/00, B01D 46/42
Applicant:
TZ Technisches Zentrum Entwicklungs- & Handelsgesellschaft mbH
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
EXAMINATION IN PROGRESS
EP14195763

Method and assembly for forming textile fabrics

IPC classification:
A41C 5/00, D06C 23/04
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
PATENT GRANTED
EP14154950

Slack line device

IPC classification:
A63B 7/08
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Agent:
Carmen Steiniger, Patentanwaltskanzlei Dr. Steiniger
Status:
PATENT GRANTED
EP13771048

DEFIBRILLATOR SYSTEM

IPC classification:
A61N 1/39
Applicant:
Carl Gustav Carus Management GmbH
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP15158145

SAFETY SWITCH DEVICE FOR MONITORING A STROKE MOVEMENT

IPC classification:
H01H 3/14, H01H 3/16
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
PATENT GRANTED
EP12196871

Fishing rod holder

IPC classification:
A01K 97/10
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP14709533

DEVICE AND METHOD FOR THERMAL UTILISATION OF RESIDUAL MATERIAL

IPC classification:
B01J 19/00, C10L 5/46, C10L 9/00, C10L 9/08
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
EXAMINATION IN PROGRESS
EP14722089

PROCESSING TOOL FOR THE THERMAL PROCESSING OF COMPONENTS

IPC classification:
B30B 15/06
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
EXAMINATION REQUESTED
EP14724292

SCANNER DEVICE

IPC classification:
G02B 26/08, G02B 26/10, H02K 1/17, H02K 26/00, H02K 33/16
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
EXAMINATION REQUESTED
EP14723986

METHOD FOR SOLDERING A SANDWICH METAL SHEET TO A SOLID METAL SHEET USING A LASER BEAM

IPC classification:
B23K 1/005, B23K 1/19, B23K 26/06, B23K 26/08, B23K 26/32
Applicant:
Volkswagen AG
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
EXAMINATION REQUESTED
EP15181497

PAVING SYSTEM FOR RAILWAY LEVEL CROSSING

IPC classification:
E01C 9/04
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
PATENT GRANTED
EP13156878

Method and assembly for storing energy

IPC classification:
F01K 3/00, F01K 23/10, F01K 25/10, F02C 6/16, F02C 6/18, F25J 1/00, F25J 1/02
Applicant:
Institut für Luft- Und Kältetechnik gGmbH (ILK)
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12163275

Microfluidic component and procedure for its manufacture

IPC classification:
B22F 3/105, B29C 67/00, F28F 3/12
Applicant:
Institut für Luft- Und Kältetechnik gGmbH (ILK)
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP15197431

WIND POWER PLANT

IPC classification:
F03D 5/06
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
APPLICATION PUBLISHED
EP12195470

Anti-collision device

IPC classification:
B25J 13/08, B25J 19/06
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP11763580

ELECTROMECHANICAL TEMPERATURE PROTECTION ELEMENT

IPC classification:
H01H 37/76
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP11813671

DEVICE FOR AND METHOD OF JOINING WORKPIECES BY MEANS OF A LASER BEAM AND MOVABLE PRESSING ELEMENTS

IPC classification:
B23K 26/02, B23K 26/03, B23K 26/08, B23K 26/14, B23K 26/22, B23K 26/24, B23K 37/04
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
The patent has been granted
EP16159082

ASSEMBLY FOR PERFORMING A METHOD FOR ELECTROCHEMICAL CHLORIDE EXTRACTION ON A CORROSION-DAMAGED REINFORCED CONCRETE SURFACE

IPC classification:
C04B 41/72
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
EXAMINATION REQUESTED
EP15709084

SYSTEM FOR ASSISTING A HELPER IN THE RESUSCITATION OF A PERSON WITH CIRCULATORY ARREST

IPC classification:
G06F 19/00
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
EXAMINATION REQUESTED
EP16184660

FLUID ENERGY MACHINE WITH ELECTROMAGNETICALLY COUPLED PISTONS

IPC classification:
B63H 1/32, F03B 17/06, F04B 17/04
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
APPLICATION PUBLISHED
EP17155217

WELDING METHOD AND DEVICE FOR JOINING OVERLAPPING SHEETS

IPC classification:
B23K 9/007, B23K 9/12, B23K 9/173, B23K 9/23, B23K 9/28, B23K 101/18, B23K 103/16, B23K 103/20, B23K 103/22
Agent:
Sigfrid Kaufmann, Kaufmann Patent- und Rechtsanwälte
Status:
The application has been published

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