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Hypromellose Acetate Succinate For Use As Hot-Melt Extrusion Carrier, Hot-Melt Extrusion Composition, And Method For Producing Hot-Melt Extrudate - EP2837391

The patent EP2837391 was granted to Shin Etsu Chemical on May 10, 2017. The application was originally filed on Jul 29, 2014 under application number EP14178879A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP2837391

SHIN ETSU CHEMICAL
Application Number
EP14178879A
Filing Date
Jul 29, 2014
Status
Opposition Rejected
Mar 25, 2022
Grant Date
May 10, 2017
External Links
Slate, Register, Google Patents

Patent Summary

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Patent Family

Patent Oppositions (2)

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HERCULESFeb 12, 2018HOFFMANN EITLEWITHDRAWN
THE DOW CHEMICALFeb 5, 2018N&H EMEAADMISSIBLE

Patent Citations (19) New

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

Citation PhasePublication NumberPublication Link
DESCRIPTIONJP2011516612
DESCRIPTIONJPH04290817
DESCRIPTIONJPS5461282
DESCRIPTIONWO03077827
DESCRIPTIONWO2009129300
OPPOSITIONEP2368544
OPPOSITIONEP2647648
OPPOSITIONJPH04290817
OPPOSITIONUS2008260657
OPPOSITIONUS2009269403
OPPOSITIONWO2009129300
OPPOSITIONWO2009132208
OPPOSITIONWO2012074042
OPPOSITIONWO2012122279
OPPOSITIONWO2012138529
OPPOSITIONWO2012152440
SEARCHUS2009269403
SEARCHWO2008138755
SEARCHWO2010114928

Non-Patent Literature (NPL) Citations (18) 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
DESCRIPTION- "Hypromellose acetate succinate", Official Monographs of the Japanese Pharmacopoeia-
DESCRIPTION- Japanese Pharmacopoeia-
DESCRIPTION- "Kaitei Zoho Funtai Bussei Zusetsu", revised and enlarged edition of Illustration of Powder Physical Properties, NIKKEI GIJUTSU TOSHO, (1985), page 88-
OPPOSITION- "Application Studies of L-HPC and HPMCAS for Pharmaceutical Dosage Forms - Update", JAPAN at ExcipientFest America s 2012, San Juan, PR, (20120424), XP055462333-
OPPOSITION- "Bulk Density and Tapped Density of Powder", World Health Organization, (20120300), pages 1 - 6, XP055462286-
OPPOSITION- CHAN I. CHUNG, "Physical Description of Single-Screw Extrusion", Extrusion of Polymers, Theory & Practice, Munich, (20100000), pages 15 - 57, XP055462323-
OPPOSITION- D. ZHOU et al., "Understanding Material Properties in Pharmaceutical Product Development and Manugacturing: Powder Flow and mechanical properties", Journal of Validation Technology, (20100000), pages 65 - 77, XP055462296-
OPPOSITION- "Hypromellose Acetate Succinate", Raymond Rowe C; Et Al, Handbook of Pharmaceutical Excipients, (20090000), pages 330 - 332, XP055462280-
OPPOSITION- K.Kolter, M. Karl, A. Gryczke, Hot-Melt Extrusion with BASF Pharma Polymers Extrusion Compendium 2nd Revised and Enlarged Edition, Basf SE, (20121000), pages 1 - 200, ISBN 978-3-00-039415-7-
OPPOSITION- K. LUKER, "Single-screw extrusion: Principles", Hot-Melt Extrusion: Pharmaceutical Applications, (20120000), pages 1 - 21, XP055462314-
OPPOSITION- LIU, H. et al., "Dispersive and Distributive Mixing with Dissolution and Applications to Hot-melt Extrusion", Proceedings of the 2nd Electron . Conf. Pharm. Sci., (20120501), URL: https://sciforum.net/conference/ecps2012/paper/794, XP055462337-
OPPOSITION- Mark Gibson et al., "Pharmaceutical Preformulation and Formulation", Boca Raton, (20040000), page 383, XP055462305-
OPPOSITION- Pharmaceutical Extrusion Technology, (20030000), pages 154, 185 - 186, XP055462319-
OPPOSITION- Rowe C. Raymond, Handbook of Pharmaceutical Excipients, Washington, DC, (20090000), pages 330 - 332, XP055462280-
OPPOSITION- "Technical brochure Shin-Etsu AQOAT Hypromellose Acetate Succinate Enteric Coating agent", Shin-Etsu, (20051000), XP055462292-
OPPOSITION- H . LIU et al., "Effects of extrusion process parameters on the dissolution behavior of indomethacin in Eudragit(R) E PO solid dispersions", International Journal of Phamaceutics, (20100000), vol. 383, no. 1-2, pages 161 - 169, XP026764606
OPPOSITION- V. KOHLENBECK et al., "Possibilities to improve the short-term dosing constancy of volumetric feeders", Powder Technology, (20030000), vol. 138, no. 1, pages 51 - 56, XP055462327
OPPOSITION- Crowley Michael M;et al.,, "Pharmaceutical Applications of Hot-Melt Extrusion: Part I", Drug Development and Industrial Pharmacy, (20070900), vol. 33, no. 9, pages 909 - 926, XP009106811

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