IP Verse

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

PatentPatent Analysis

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
Similar Patents facing opposition
EP3533838B1
EP3967730B1
EP3023110B2

Bibliography

The patent EP2837391B1 was granted to Shin Etsu Chemical on May 10, 2017 following the initial filing on Jul 29, 2014 under the application number EP14178879A . The current legal status of the patent is Opposition Rejected.

AI Generated Summary New

Patent Family

Patent Family

Patent Oppositions filed by Competitors

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 DateOpposition Status

Get instant alerts for new oppositions and patent status changes

HERCULESFeb 12, 2018WITHDRAWN
THE DOW CHEMICALFeb 5, 2018ADMISSIBLE

Dossier Documents of the Patent

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

  • Date

    Description

  • Get instant alerts for new documents