IP Verse

High-Speed-Tool Steel And Method For Producing Same - EP3050986

The patent EP3050986 was granted to Hitachi Metals on Jul 31, 2019. The application was originally filed on Jun 24, 2014 under application number EP14847363A. The patent is currently recorded with a legal status of "Revoked".

EP3050986

HITACHI METALS
Application Number
EP14847363A
Filing Date
Jun 24, 2014
Status
Revoked
Jul 19, 2024
Grant Date
Jul 31, 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

UDDEHOLMSFeb 21, 2020NORENS PATENTBYRAADMISSIBLE

Patent Citations (25) New

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

Citation PhasePublication NumberPublication Link
DESCRIPTIONJP2004307963
INTERNATIONAL-SEARCH-REPORTJP2003226939
INTERNATIONAL-SEARCH-REPORTJP2004307963
INTERNATIONAL-SEARCH-REPORTJP2009084631
INTERNATIONAL-SEARCH-REPORTJP2009197271
OPPOSITIONEP0452526
OPPOSITIONEP0733719
OPPOSITIONEP1300482
OPPOSITIONEP1469094
OPPOSITIONEP2055798
OPPOSITIONEP2196553
OPPOSITIONJP2003226939
OPPOSITIONJP2004169177
OPPOSITIONJP2007056289
OPPOSITIONJP2013087322
OPPOSITIONJPH01152242
OPPOSITIONUS2004187972
OPPOSITIONUS3117863
OPPOSITIONUS7695576
OPPOSITIONWO03106728
SEARCHEP1469094
SEARCHEP1511872
SEARCHEP1511873
SEARCHEP2223763
SEARCHUS6761853

Non-Patent Literature (NPL) Citations (7) 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
OPPOSITION- Hatto Jacobi, "Metallurgie und Werstofftechnik hochreiner Stahle", Stahl und Eisen, (19940101), vol. 114, no. 11, page 45, XP055694088-
OPPOSITION- Manas Shirgaokar, "TECHNOLOGY TO IMPROVE COMPETITIVENESS IN WARM AND HOT FORGING -INCREASING DIE LIFE AND MATERIAL UTILIZATION", Ohio State University, pages 220 - 225, Ohio State University, URL: https:/ /www.semanticscholar.org/paper/Technology-to-lmprove-Competitiveness-in-Warm-and-Shirgaokar/279026410cl7de42ba531f6fla215el86b5569c9, (20200512), XP055694049-
OPPOSITION- Shunsuke Nakahama, Et Al, "The development of high hard and tough matrix type high speed tool steels", International mold Steel: Whitepaper, pages 1 - 2, International mold Steel: Whitepaper, URL: http://www.imsteet.com/whitepaper/3_32_concept.html, (20200512), XP055694068-
OPPOSITION- URL: https:/ /www.edelstahl-rostfrei.de/werkstoff /werkstoffdaten-
OPPOSITION- Shigeto Takebayashi, Kohsaku Ushioda, Naoki Yoshinaga, Shigenobu Ogata, "Effect of Carbide Size Distribution on the Impact Toughness of Tempered Martensitic Steels with Two Different Prior Austenite Grain Sizes Evaluated by Instrumented Charpy Test", Materials Transactions, The Japanese Institute of MEtals and Materials, JP, JP, (20130101), vol. 54, no. 7, doi:10.2320/matertrans.M2013079, ISSN 1345-9678, pages 1110 - 1119, XP055694079
OPPOSITION- Singon Kang, Kim Minwook, Lee Seok-Jae, "Microstructural and Mechanical Characteristics of Novel 6% Cr Cold-Work Tool Steel", Metals, Molecular Diversity Preservation International, (20170101), vol. 7, no. 1, pages 12 - 19, XP055694099
OPPOSITION- Shunsuke Nakahama, Yukinori Matsuda, Kunio Namiki, Kozo Ozaki, "The Development of High Hard and Tough Matrix Type High Speed Tool Steels: DRM", DENKI-SEIKO[ELECTRIC FURNACE STEEL], doi:10.4262/denkiseiko.76.279, (20050101), pages 279 - 286, URL: https://www.jstage.jst.go.jp/article/denkiseiko/76/4/76_4_279/_pdf/-char/en, XP055694075

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