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Representative before the EPO

Employment test 11 - 50 employees
Company dna rott ruzicka and guttmann
operating since 1990
Headquarter in Prague and 1 office
active in Legal Services

We have observed 50 EP applications Ivana Jirotkova has served for within the last five+ years. (We consider all applications which have an EP A1 publication dated after January 16, 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:

EP12712549

A METHOD OF MANUFACTURING 2-ETHOXY-1-((2'-((HYDROXYAMINO) IMINOMETHYL)BIPHENYL-4- YL)METHYL)-1H-BENZO [D]IMIDAZOLE-7-CARBOXYLIC ACID AND ITS ESTERS

IPC classification:
C07D 235/26
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
PATENT GRANTED
EP12772876

METHOD FOR THE REMOVAL AND RECOVERY OF METALS AND PRECIOUS METALS FROM SUBSTRATES

IPC classification:
C22B 3/24, C22B 7/00, C22B 11/00, C23F 1/30, C23F 1/44
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
GRANT OF PATENT INTENDED
EP12784603

PROCESS FOR THE PRODUCTION OF N-SUBSTITUTED 2-(ACETYLAMINO)-N'-BENZYL-3-METHOXYPROPANAMIDES

IPC classification:
C07C 237/22
Applicant:
Zentiva, k.s.
Applicant:
Sanofi-Aventis Deutschland GmbH
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP13002930

Agomelatine formulations comprising agomelatine in the form of co-crystals

IPC classification:
A61K 31/165, A61K 47/02, A61K 47/12
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
GRANT OF PATENT INTENDED
EP13002931

Pharmaceutical formulations comprising agomelatine in the form of agomelatine co-crystal with an organic acid

IPC classification:
A61K 31/165, A61K 47/12, A61P 25/20, A61P 25/22, A61P 25/24
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION IN PROGRESS
EP13002964

Drug formulation using API in nanofibers

IPC classification:
A61K 9/00, A61K 9/70, A61K 31/519
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13002963

Stabilized amorphous ticagrelor

IPC classification:
A61K 9/14, A61K 9/16, A61K 31/00
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13716178

A METHOD OF PREPARING THE SCOPINE ESTER OF DI-(2-THIENYL)GLYCOLIC ACID, AN INTERMEDIATE IN THE SYNTHESIS OF TIOTROPIUM BROMIDE, AND ITS NEW FORM

IPC classification:
C07D 451/10
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP13716179

A METHOD OF PREPARING THE SCOPINE ESTER OF DI-(2-THIENYL)GLYCOLIC ACID, AN INTERMEDIATE IN THE SYNTHESIS OF TIOTROPIUM BROMIDE

IPC classification:
C07D 451/00
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
NO OPPOSITION FILED WITHIN TIMELIMIT
EP13003774

Stabilised amorphous forms of Saxagliptin

IPC classification:
A61K 9/10, C07D 209/52
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
PATENT GRANTED
EP13725551

METHOD OF PREPARING POTASSIUM SALT OF AZILSARTAN MEDOXOMIL OF HIGH PURITY

IPC classification:
C07D 413/14
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP13004845

An improved process for the preparation of Tenofovir disoproxil and pharmaceutically acceptable salts thereof

IPC classification:
C07F 9/6561
Applicant:
Zentiva, k.s.
Applicant:
Institute of Organic Chemistry and Biochemistry
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
GRANT OF PATENT INTENDED
EP13004844

Dihydrogenphosphate salt of Tenofovir disoproxil

IPC classification:
A61K 31/675, C07F 9/6561
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
GRANT OF PATENT INTENDED
EP12740458

NOVEL PHARMACEUTICAL SOLID FORMS OF (1S,2S,3R,5S)-3-[7-[(1R,2S)-2-(3,4DIFLUOROPHENYL)CYCLOPROPYLAMINO]-5-(PROPYLTHIO)-3H-[1,2,3]TRIAZOLO[4,5-D]PYRIMIDIN-3YL]-5-(2-HYDROXYETHOXY)CYCLOPENTANE-L,2-DIOL

IPC classification:
A61K 31/519, A61P 7/02, C07D 487/04
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION IN PROGRESS
EP14000064

Formulation of aprepitant with enhanced solubility

IPC classification:
A61K 9/14, A61K 31/5377
Applicant:
Sanofi, S.A.
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
The patent has been granted
EP13773171

A STABLE PHARMACEUTICAL FORMULATION CONTAINING VARDENAFIL HYDROCHLORIDE

IPC classification:
A61K 9/20, A61K 31/4985
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
The patent has been granted
EP13779507

A METHOD OF PREPARING A HIGHLY PURE POTASSIUM SALT OF AZILSARTAN MEDOXOMIL

IPC classification:
A61K 31/4245, A61P 9/12, C07D 413/14
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
GRANT OF PATENT INTENDED
EP13782934

A NEW PRODUCTION METHOD AND NEW INTERMEDIATES OF SYNTHESIS OF ELVITEGRAVIR

IPC classification:
C07C 227/10, C07C 227/16, C07C 229/34, C07D 215/56
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
PATENT GRANTED
EP13782935

AN IMPROVED PRODUCTION METHOD AND NEW INTERMEDIATES OF SYNTHESIS OF ELVITEGRAVIR

IPC classification:
C07D 215/56
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION IN PROGRESS
EP12786801

STABILIZATION OF TIOTROPIUM SOLVATES

IPC classification:
A61K 31/46, A61P 11/06, C07D 451/10
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
PATENT GRANTED
EP13834323

DRY GRANULATION PROCESS FOR PRODUCING TABLET COMPOSITIONS OF METFORMIN AND COMPOSITIONS THEREOF

IPC classification:
A61K 9/20, A61K 31/155, A61K 47/02, A61K 47/38
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
PATENT GRANTED
EP14702441

A FOOD-PROCESSING EMULSION WITHOUT GLUTEN FOR FOOD COATING

IPC classification:
A21D 10/04, A23L 1/00, A23L 1/176
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
GRANT OF PATENT INTENDED
EP14723973

A PROCESS FOR THE SYNTHESIS OF MARAVIROC

IPC classification:
C07D 451/02
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
APPLICATION DEEMED TO BE WITHDRAWN
EP14734378

PROCESS FOR THE MANUFACTURE OF EPOXY-MONOMERS AND EPOXIDES

IPC classification:
C07D 301/26, C07D 301/32
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
GRANT OF PATENT INTENDED
EP14799323

A STABLE PHARMACEUTICAL COMPOSITION CONTAINING AMLODIPINE AND VALSARTAN

IPC classification:
A61K 9/20, A61K 9/28, A61K 31/41, A61K 31/4422
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
GRANT OF PATENT INTENDED
EP14815215

A STABLE POLYMORPH OF THE SALT OF (2R)-4-OXO-4-[3-(TRIFIUOROMETHYL)-5,6- DIHYDRO[L,2,4]TRIAZOLO[4,3-A]PYRAZIN-7(8H)-YL]-L-(2,4,54RIFLUOROPHENYL)BUTAN-2-AMINE WITH L-TARTARIC ACID

IPC classification:
A61K 31/519, A61P 3/10, C07D 487/04
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION REQUESTED
EP15710419

A SOLID FORM OF TAPENTADOL MALEATE AND A METHOD OF ITS PREPARATION

IPC classification:
A61K 31/135, A61P 29/00, C07C 57/145, C07C 215/54
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION REQUESTED
EP15715961

A PROCESS FOR PRODUCING SAXAGLIPTIN

IPC classification:
C07D 209/52
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION REQUESTED
EP15720253

A PROCESS FOR PRODUCING ENZALUTAMIDE

IPC classification:
C07D 233/86
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION REQUESTED
EP14833503

FORMULATION OF APREPITANT WITH ENHANCED SOLUBILITY

IPC classification:
A61K 9/14, A61K 31/5377
Applicant:
Sanofi, S.A.
Applicant:
Zentiva, k.s.
Applicant:
Sanofi
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION REQUESTED
EP15720254

USE OF A L,3J5-TRIAZIN-2-YL PHOSPHORAMIDATE COMPOUND IN THE SYNTHESIS OF SOFOSBUVIR

IPC classification:
C07F 9/6521, C07F 9/6558
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION REQUESTED
EP15802931

USE OF ANTI-AGING GLYCOPEPTIDES TO ENHANCE PANCREATIC CELL HEALTH, SURVIVAL AND IMPROVE TRANSPLANT OUTCOME

IPC classification:
A61K 35/39, A61K 38/14, A61L 27/38, A61P 3/10, C07K 9/00, C12N 5/071
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION REQUESTED
EP15745371

METHOD OF PREPARING ABIRATERONE ACETATE OF HIGH PURITY APPLICABLE ON INDUSTRIAL SCALE

IPC classification:
C07J 13/00, C07J 43/00
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION REQUESTED
EP15744867

METHOD OF PREPARING VORTIOXETINE

IPC classification:
A61K 31/44, A61P 25/24, C07D 211/20, C07D 211/70
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION REQUESTED
EP15747360

A NEW FORM OF SOFOSBUVIR AND A METHOD OF ITS PREPARATION

IPC classification:
C07H 19/10
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
EXAMINATION REQUESTED
EP15784266

A PROCESS FOR PREPARING GLYCOPYRRONIUM BROMIDE

IPC classification:
A61K 31/40, A61P 11/08, C07D 207/12
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP15784925

A PROCESS FOR PREPARING HIGHLY PURE AZILSARTAN

IPC classification:
A61K 31/4245, A61P 9/12, C07D 413/10
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP15791240

A PROCESS FOR PRODUCING HIGHLY PURE CHLORINATED ALKANES

IPC classification:
C07C 17/04, C07C 19/01
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP15791480

PROCESS

IPC classification:
C07C 17/25, C07C 21/04
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP15794054

PROCESS

IPC classification:
C07C 17/04, C07C 17/25, C07C 17/26, C07C 17/272, C07C 17/275, C07C 17/278, C07C 19/01, C07C 21/04
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP15791479

PROCESS

IPC classification:
C07C 17/272, C07C 17/275, C07C 17/383, C07C 19/01
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP15808087

A METHOD FOR THE PREPARATION, ISOLATION AND PURIFICATION OF PHARMACEUTICALLY APPLICABLE FORMS OF AHU-377

IPC classification:
A61K 31/216, C07C 211/06, C07C 211/07, C07C 211/17, C07C 233/47
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP15797582

SALTS OF (3R)-3-CYCLOPENTYL-3-[4-(7H-PYRROLO[2,3-D]PYRIMIDIN-4-YL)PYRAZOL-1-YL]PROPANENITRILE

IPC classification:
C07D 487/04
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP15825595

FORMULATIONS CONTAINING A SOLID SOLUTION OF FEBUXOSTAT

IPC classification:
A61K 9/14, A61K 31/426
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP17020198

SOLID FORMS OF IBRUTINIB FREE BASE

IPC classification:
A61K 31/519, A61P 29/00, A61P 35/00, C07D 487/04
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
The application has been published
EP17020225

FORMS OF UMECLIDINIUM BROMIDE

IPC classification:
C07D 453/02
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
The application has been published
EP16712715

SOLID FORMS OF DOLUTEGRAVIR SALTS AND A METHOD OF THEIR PREPARATION

IPC classification:
A61K 31/5365, A61P 31/18, C07D 498/04
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP16706789

IBRUTINIB SULPHATE SALT

IPC classification:
A61K 31/519, C07D 487/04
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
Request for examination was made
EP17020257

METHODS FOR PREPARING INTERMEDIATES FOR THE SYNTHESIS OF OBETICHOLIC ACID

IPC classification:
A61K 31/567, A61K 31/575, C07C 305/12
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
The application has been published
EP17020256

A PHARMACEUTICAL FORMULATION OF OLAPARIB

IPC classification:
A61K 9/14, A61K 31/502
Applicant:
Zentiva, k.s.
Agent:
Ivana Jirotkova, Rott Růžička & Guttmann
Status:
The application has been published

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