Polymorphs Of Febuxostat - EP2977372

The patent EP2977372 was granted to Sandoz on May 8, 2019. The application was originally filed on Jun 24, 2011 under application number EP15181097A. The patent is currently recorded with a legal status of "Revoked".

EP2977372

SANDOZ
Application Number
EP15181097A
Filing Date
Jun 24, 2011
Status
Revoked
Apr 20, 2023
Grant Date
May 8, 2019
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentativeOpposition Status

Get instant alerts for new oppositions and patent status changes

ALFRED E TIEFENBACHERMay 10, 2019HAMM & WITTKOPPADMISSIBLE

Patent Citations (15) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication NumberPublication Link
DESCRIPTIONEP1020454
DESCRIPTIONUS2005043375
DESCRIPTIONUS7361676
OTHEREP1020454
OTHEREP2399911
OTHEREP2585445
OTHERUS2005043375
OTHERUS7361676
OTHERWO9965885
SEARCHCN101817801
SEARCHEP1020454
SEARCHEP2399911
SEARCHEP2585445
SEARCHUS2005043375
SEARCHWO2010144685

Non-Patent Literature (NPL) Citations (8) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
EXAMINATION- Eder, "Opposition against European Patent 2 399 911 B1, pages 1-23 plus annexes 1 and 2", European Patent Register, (20160518), URL: https://register.epo.org/application?d-16544-s=1&d-16544-o=2&tab=doclist&lng=en&number=EP10167344, (20170404), XP055361414-
EXAMINATION- Eder, "Opposition against European Patent 2 399 911 B1, pages 1-6 plus annex 3", (20171130), pages 1 - 8, URL: https://register.epo.org/application?number=EP10167344&lng=en&tab=doclist, (20180314), XP055459267-
OTHER- "Polymorphism in Pharmaceutical Solids", BRITTAIN, H. G., Drugs and the pharmaceutical Sciences, Marcel Dekker, Inc., (19990000), vol. 95-
OTHER- GIRON, D., "Thermal analysis and calorimetric methods in the characterisation of polymorphs and solvates", Thermochimica Acta, (19950000), vol. 248, doi:doi:10.1016/0040-6031(94)01953-E, pages 1 - 59, XP002101808
SEARCH- Bernstein, Polymorphism in Molecular Crystals, Oxford, Clarendon Press, (2002), pages 125 - 131, ISBN 0198506058, XP002608621 [L] 1-15 * The whole document. for instance, page 125, last paragraph. Cited as common general knowledge. *-
SEARCH- Ivanisevic et al., "Uses of X-Ray Powder Diffraction In the Pharmaceutical Industry", Pharmaceutical Sciences Encyclopedia: Drug Discovery, Development, and Manufacturing, doi:10.1002/9780470571224.pse414, (20100625), pages 1 - 42, URL: http://onlinelibrary.wiley.com/store/10.1002/9780470571224.pse414/asset/pse414.pdf?v=1&t=gsssyq3r&s=316303db60793cc15e15c87a2d3b6ec61b51414e, (20110920), XP055007590 [L] 1-15 * Page 35, section 4.2.3: paragraphs 1 and 2. Cited as common general knowledge. *
SEARCH- CAIRA, "CRYSTALLINE POLYMORPHISM OF ORGANIC COMPOUNDS", TOPICS IN CURRENT CHEMISTRY, (19980101), vol. 198, doi:10.1007/3-540-69178-2_5, pages 163 - 208, XP001156954 [L] 1-14 * Page 164; paragraph bridging pages 165-166; chapter 3.1. Cited as common general knowledge. *
SEARCH- BRITTAIN, "SPECTRAL METHODS FOR THE CHARACTERIZATION OF POLYMORPHS AND SOLVATES", J. PHARM. SCI., (19970401), vol. 86, no. 4, doi:10.1021/JS960238E, ISSN 0022-3549, pages 405 - 412, XP001204463 [L] 1-15 * Page 405, right column, paragraph 1. Cited as common general knowledge. *

Download Citation Report

Get a free citation report including examiner, opposition, and international search citations.

Get Citation Report

Dossier Documents

The dossier documents provide a comprehensive record of the patent’s prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents