Representative before the EPO

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Technology Company

Representative before the EPO

Employment test 1 - 10 employees
Company dna dr langfinger and partner
no operation time available
Headquarter in Frankfurt am Main and 1 office
active in Legal Services and Matchmaking and Trading

We have observed 31 EP applications Bernd Hupfer has served for within the last five+ years. (We consider all applications which have an EP A1 or A2 publication dated after July 07, 2013). Please note, that we only count EP applications, in which the name of the patent attorney is explicitly mentioned as representative. These EP applications are:

EP11805930

LOW FORMALDEHYDE VINYL ESTER/ETHYLENE COPOLYMER DISPERSIONS FOR USE IN ADHESIVES

IPC classification:
C09J 131/04, C09J 123/08
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12845182

HIGH DENIER PER FILAMENT AND LOW TOTAL DENIER TOW BANDS

IPC classification:
A24D 3/02, D04H 3/12, D04H 3/077, D04H 3/013, D02G 1/12, D01F 2/28
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP12795235

POLYMER LATEX BLENDS AND APPLICATIONS THEREOF

IPC classification:
C09D 125/00, C09D 123/08, C08L 23/08
Applicant:
Celanese International Corporation
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
EXAMINATION IN PROGRESS
EP11867577

CARPET COATING COMPOSITIONS OF IMPROVED STABILITY FORMED FROM VINYL ACETATE/ ETHYLENE COPOLYMER DISPERSIONS

IPC classification:
D06N 7/00, C09D 131/04
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP12818846

PROCESS FOR PRODUCING AMMONIUM SALTS

IPC classification:
C07D 291/06, C07C 209/86, C01C 1/24
Applicant:
Celanese International Corporation
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP11819106

POLYMER DISPERSIONS

IPC classification:
C08F 2/22
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP13751299

DEFORMABLE TABLET WITH WATER TRIGGERED CATALYST RELEASE

IPC classification:
A24D 3/08, A24D 3/06, A24D 3/04
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13754396

METHODS OF PREPARING POLYSACCHARIDE SHEETS FOR ESTERIFICATION

IPC classification:
C08B 3/06, C08B 3/00
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
The patent has been granted
EP13741471

SUBSTITUTED CELLULOSE ACETATES AND USES THEREOF

IPC classification:
E21B 43/22, C09K 8/588, C09K 8/10
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP13741364

SUBSTITUTED CELLULOSE ACETATES AND USES THEREOF

IPC classification:
C09J 101/12, C08L 1/12, C08B 3/06
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13741010

SUBSTITUTED CELLULOSE ACETATES AND USES THEREOF

IPC classification:
A24D 3/14, A24D 3/10, A24D 3/06, A24D 1/00
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13740863

SUBSTITUTED CELLULOSE ACETATES AND USES THEREOF

IPC classification:
A01C 1/08, A01C 1/06, A01C 1/00
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13741111

SUBSTITUTED CELLULOSE ACETATES AND USES THEREOF

IPC classification:
A61L 15/28, A61F 13/53, A61F 13/49
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13706869

CARPET PRODUCTS AND PROCESSES FOR MAKING SAME USING LATEX COATING COMPOSITIONS

IPC classification:
D06N 7/00, C09J 131/04, C09J 109/08
Applicant:
Celanese International Corporation
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP13719689

VINYL ESTER-BASED COPOLYMER DISPERSIONS FROM A CONTINUOUS TUBULAR EMULSION POLYMERIZATION PROCESS

IPC classification:
C08F 222/16, C08F 220/04, C08F 218/08, C08F 2/22
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
EXAMINATION IN PROGRESS
EP12728766

LOW FORMALDEHYDE VINYL ESTER/ETHYLENE EMULSION COPOLYMERS

IPC classification:
C08F 18/04
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
EXAMINATION IN PROGRESS
EP13739500

VINYL ESTER/ETHYLENE COPOLYMER DISPERSIONS PREPARED BY CONTINUOUS TUBULAR EMULSION POLYMERIZATION FOR COATING CARPET PRODUCTS

IPC classification:
D06N 7/00, C09J 131/04, C09D 131/04, C08F 2/22
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP12876890

VINYL ACETATE-ETHYLENE COPOLYMER EMULSION AND PAPER COATING COMPOSITION BASED ON THE SAME

IPC classification:
C09D 131/04, C08F 218/08, C08F 2/22
Applicant:
Celanese International Corporation
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13727188

PROCESS FOR PRODUCING ACESULFAME POTASSIUM

IPC classification:
C07D 291/06
Applicant:
Celanese Sales Germany GmbH
Applicant:
Nutrinova Nutrition Specialties & Food Ingredients GmbH
Agent:
Daniela Kinkeldey, Bird & Bird LLP
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
PATENT GRANTED
EP12768725

TASTE-MASKING COMPOSITIONS, SWEETENER COMPOSITIONS AND CONSUMABLE PRODUCT COMPOSITIONS CONTAINING THE SAME

IPC classification:
A23L 2/60, A23L 2/56, A23L 1/236, A23L 1/22
Applicant:
Celanese Sales Germany GmbH
Applicant:
Nutrinova Nutrition Specialties & Food Ingredients GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP13731248

HYDROPHOBIC VINYL ESTER COPOLYMER DISPERSIONS

IPC classification:
C09J 131/04, C09J 131/02, C09J 123/08, C08F 218/08, C08F 2/30, C08F 2/26, C08F 2/20
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP13822917

SPINNERET COMPRISING TRI-ARC HOLES AND TRI-ARC FILAMENTS PRODUCED THEREFROM

IPC classification:
A24D 3/06, A24D 3/04, B01D 39/14, B01D 39/02
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13823035

SPINNERET COMPRISING TRI-ARC HOLES AND TRI-ARC FILAMENTS PRODUCED THEREFROM

IPC classification:
D02G 1/00, D01F 2/28, D01D 5/253, D01D 4/02
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP13825032

METHODS OF PRODUCING FILTERS AND FILTER RODS COMPRISING POROUS MASSES AND ARTICLES RELATING THERETO

IPC classification:
A24D 3/02, A24D 3/00
Applicant:
Celanese Acetate LLC
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP12882818

WATERPROOFING COATING COMPOSITIONS

IPC classification:
C09D 129/04, C08F 218/04
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP13759349

METHODS FOR REMOVING HEMICELLULOSE

IPC classification:
C12P 19/00, C08H 8/00
Applicant:
Celanese International Corporation
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP13801717

POLYMER DISPERSIONS HAVING MULTIMODAL PARTICLE SIZE DISTRIBUTION

IPC classification:
C08F 2/24
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
EXAMINATION IN PROGRESS
EP12884053

FUNCTIONALIZED VINYL ACETATE ETHYLENE BINDERS FOR PAPER AND PAPERBOARD COATINGS

IPC classification:
C08J 5/12, C08F 2/44, B32B 7/12
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED
EP12885105

SUBSTITUTED CELLULOSE ESTER ADHESIVES AND METHODS AND ARTICLES RELATING THERETO

IPC classification:
C09J 101/16, C08B 5/14, C08B 5/02, C08B 5/00
Applicant:
Celanese Acetate LLC
Agent:
Bernd Hupfer, Celanese GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Status:
GRANT OF PATENT INTENDED
EP12884914

FIBROUS SUBSTRATES ADHERED WITH SUBSTITUTED CELLULOSE ESTER ADHESIVES AND METHODS RELATING THERETO

IPC classification:
C08L 1/10, C08J 7/00, B32B 23/20, B32B 23/14, B32B 23/10, B32B 7/12
Applicant:
Celanese Acetate LLC
Agent:
Bernd Hupfer, Celanese GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13777233

ADHESIVE COMPOSITIONS

IPC classification:
C09J 133/00, C09J 131/02
Applicant:
Celanese Sales Germany GmbH
Applicant:
Celanese Emulsions GmbH
Agent:
Ulrike Maria Herr, Isenbruck Bösl Hörschler LLP
Agent:
Bernd Hupfer, Celanese GmbH
Status:
GRANT OF PATENT INTENDED

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