Apparatus And Method For Pre-Heating Feedstock To A Melter Using Melter Exhaust - EP3138820

The patent EP3138820 was granted to Johns Manville on May 8, 2019. The application was originally filed on Sep 2, 2016 under application number EP16187117A. The patent is currently recorded with a legal status of "Revoked".

EP3138820

JOHNS MANVILLE
Application Number
EP16187117A
Filing Date
Sep 2, 2016
Status
Revoked
Oct 1, 2021
Publication 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

SAINT GOBAINFeb 5, 2020SAINT GOBAIN RECHERCHE -

Patent Citations (30) New

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

Citation PhasePublication Number
DESCRIPTIONUS2008276652
DESCRIPTIONUS2012104306
DESCRIPTIONUS6250916
DESCRIPTIONUS8769992
DESCRIPTIONUS8973405
DESCRIPTIONUS9096453
DESCRIPTIONWO2014189504
OPPOSITIONDE3716687
OPPOSITIONEP0135446
OPPOSITIONEP0426082
OPPOSITIONFR1557797
OPPOSITIONFR2281902
OPPOSITIONUS2057393
OPPOSITIONUS2593197
OPPOSITIONUS5125943
OPPOSITIONWO2011154106
OPPOSITIONWO9725285
OPPOSITIONWO9937591
SEARCHDE10029983
SEARCHEP2105415
SEARCHGB909806
SEARCHUS1610376
SEARCHUS2014007622
SEARCHUS2057393
SEARCHUS3190625
SEARCHUS4203761
SEARCHUS4605437
SEARCHUS4652289
SEARCHUS4877449
SEARCHWO8200460

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