IP Verse

Cellulose Pulp And Shaped Lyocell Article Having A Reduced Cellulose Content - EP3762537

The patent EP3762537 was granted to Lenzing on Oct 25, 2023. The application was originally filed on Mar 6, 2019 under application number EP19708327A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3762537

LENZING
Application Number
EP19708327A
Filing Date
Mar 6, 2019
Status
Granted And Under Opposition
Sep 22, 2023
Grant Date
Oct 25, 2023
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

METSA SPRINGJul 19, 2024ESPATENTADMISSIBLE

Patent Citations (26) New

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

Citation PhasePublication NumberPublication Link
DESCRIPTIONUS2015184338
DESCRIPTIONUS4246221
DESCRIPTIONUS6440523
DESCRIPTIONUS6444314
DESCRIPTIONWO2010132151
DESCRIPTIONWO2014086883
DESCRIPTIONWO9319230
DESCRIPTIONWO9428214
DESCRIPTIONWO9428217
DESCRIPTIONWO9502082
DESCRIPTIONWO9633221
DESCRIPTIONWO9633934
DESCRIPTIONWO9738153
DESCRIPTIONWO9805702
DESCRIPTIONWO9816682
DESCRIPTIONWO9947733
INTERNATIONAL-SEARCH-REPORTUS2015184338
INTERNATIONAL-SEARCH-REPORTWO2010132151
INTERNATIONAL-SEARCH-REPORTWO9816682
INTERNATIONAL-SEARCH-REPORTWO9947733
OPPOSITIONEP1441050
OPPOSITIONUS2002036070
OPPOSITIONUS2015376835
OPPOSITIONUS8802229
OPPOSITIONWO9816682
OTHERUS2002036070

Non-Patent Literature (NPL) Citations (9) 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- Ebeling H, Fink H.-P, Luo M, Geus H.-G, "CELLULOSE MELTBLOWN NONWOVENS USING THE LYOCELL-PROCESS", Lenzinger Berichte, (20060101), vol. 86, pages 124 - 131, XP093197062-
OPPOSITION- Kreze Tatjana, Stana-Kleinschek Karin, Ribitsch Volker, "THE SORPTION BEHAVIOUR OF CELLULOSE FIBRES", LENZINGER BERICHTE, (20010101), vol. 80, pages 28 - 33, XP093197066-
OPPOSITION- Lyytikäinen Katja, "REMOVAL OF XYLAN FROM BIRCH KRAFT PULPS AND THE EFFECT OF ITS REMOVAL ON FIBER PROPERTIES, COLLOIDAL INTERACTIONS AND RETENTION IN PAPERMAKING", Doctoral Thesis, Lappeenranta University of Technology, (20171130), XP093197053-
OPPOSITION- Zhang Huiru, Zhang Huihui, Tong Mingwei, Shao Huili, Hu Xuechao, "Comparison of the Structures and Properties of Lyocell Fibers from High Hemicellulose Pulp and High a-Cellulose Pulp", JOURNAL OF APPLIED POLYMER SCIENCE, (20070924), vol. 107, doi:10.1002/app.27129, pages 636 - 641, XP093197063
OPPOSITION- Zhang Huiru, Tong Mingwei, "Influence of Hemicelluloses on the Structure and Properties of Lyocell Fibers", Polymer Engineering and Science, BROOKFIELD CENTER., US, US , (20070326), doi:10.1002/pen.20743, ISSN 0032-3888, pages 702 - 706, XP093197065
OPPOSITION- Chen Jing-Huan; Guan Ying; Wang Kun; Xu Feng; Sun Run-Cang, "Regulating effect of hemicelluloses on the preparation and properties of composite Lyocell fibers", Cellulose, Springer Netherlands, Netherlands, Netherlands , (20150412), vol. 22, no. 3, doi:10.1007/s10570-015-0608-0, ISSN 0969-0239, pages 1505 - 1516, XP035500707
OPPOSITION- Ma Yibo, Stubb Jonas, Kontro Inkeri, Nieminen Kaarlo, Hummel Michael, Sixta Herbert, "Filament spinning of unbleached birch kraft pulps: Effect of pulping intensity on the processability and the fiber properties", Carbohydrate Polymers, (20180101), vol. 179, doi:10.1016/j.carbpol.2017.09.079, pages 145 - 151, XP093197050
OPPOSITION- Ming-Fei Li; Shao-Ni Sun; Feng Xu; Run-Cang Sun;, "Ultrasound-enhanced extraction of lignin from bamboo (): Characterization of the ethanol-soluble fractions", Ultrasonics Sonochemistry, BUTTERWORTH-HEINEMANN., GB, GB , (20110629), vol. 19, no. 2, doi:10.1016/j.ultsonch.2011.06.018, ISSN 1350-4177, pages 243 - 249, XP028286713
OPPOSITION- Y. Ma, Et Al., "Upcycling of waste paper and cardboard to textiles", Green Chemistry, Royal Society of Chemistry, GB, GB , (20160101), vol. 18, no. 3, doi:10.1039/C5GC01679G, ISSN 1463-9262, pages 858 - 866, XP055653365

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