Ultra -High Molecular Weight Polyethylene Multifilament Yarn

Patent No. EP2791402 (titled "Ultra -High Molecular Weight Polyethylene Multifilament Yarn") was filed by DSM Assets on Dec 14, 2012. The application was issued on Nov 28, 2018.

Patent Summary

A multifilament yarn made from ultra-high molecular weight polyethylene (UHMWPE) with at least 25 filaments, exhibiting improved tenacity retention when increasing filament count compared to conventional yarns. The yarn is suitable for heavy-duty applications such as ropes, cordages, and reinforced products, as well as medical devices, composites, and ballistic-resistant articles.

UPC Cases New

Latest UPC cases involving this patent.

Case Number	Filing Date	Plaintiff	Proceeding Type
UPC_COA_0000076/2026	May 15, 2026	Jiangsu Xingi High Performance Fiber Products, Xingi Technology	Appeal
UPC_CFI_478/2025	Jun 13, 2025	Avient Protective Materials	Infringement
UPC_CFI_0000585/2026	Jun 13, 2025	Avient Protective Materials	Counter Claim For Revocation

Patent Family

Statuses, jurisdictions and citation links are shared on request.

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

Oct 2, 2019
Communication regarding the expiry of opposition period
Dec 10, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Nov 2, 2018
Decision to grant a European patent
Oct 25, 2018
Decision to allow further processing
Oct 15, 2018
(Electronic) Receipt
Oct 15, 2018
French translation of claims
Oct 15, 2018
German translation of the claims
Oct 15, 2018
Letter accompanying subsequently filed items
Oct 15, 2018
Request for further processing
Aug 28, 2018
Application deemed to be withdrawn ( translations of claims/payment missing)
Mar 12, 2018
Bibliographic data of the European patent application
Mar 12, 2018
Communication about intention to grant a European patent
Mar 12, 2018
Intention to grant (signatures)
Mar 12, 2018
Text intended for grant (clean copy)
Mar 12, 2018
Text intended for grant (version for approval)
Feb 5, 2018
Examination started
Oct 18, 2017
Communication of amended entries concerning the representative
Oct 3, 2017
Submission concerning change of applicant's representative
Feb 4, 2015
(Electronic) Receipt
Feb 4, 2015
Amended claims filed after receipt of (European) search report
Feb 4, 2015
Amended claims with annotations
Feb 4, 2015
Amendments received before examination
Feb 4, 2015
Letter accompanying subsequently filed items
Sep 24, 2014
Notification on forthcoming publication of bibliographic data
Jul 31, 2014
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Jul 24, 2014
Priority search results copy provided by EPO
Jul 18, 2014
Communication to designated inventor
Jul 18, 2014
Communication to designated inventor
Jul 18, 2014
Communication to designated inventor
Jul 3, 2014
Copy of the international preliminary report on patentability
May 26, 2014
(Electronic) Receipt
May 26, 2014
Request for entry into the European phase
Apr 25, 2014
Information on entry into European phase
Jul 11, 2013
Priority document (electronically transmitted)
Jun 20, 2013
Copy of the international search report
Jun 20, 2013
Published international application - A1
Mar 12, 2013
Written opinion of the ISA, boxes No. I to VIII
Mar 12, 2013
Written opinion of the ISA, cover sheet
Mar 12, 2013
Written opinion of the ISA, supplemental box
Dec 14, 2012
(Electronic) Receipt
Dec 14, 2012
Abstract
Dec 14, 2012
Claims
Dec 14, 2012
Description
Dec 14, 2012
Drawings
Dec 14, 2012
Priority document (RO-procedure)

EP2791402

DSM ASSETS

Application Number: EP12801577A
Filing Date: Dec 14, 2012
Status: No Opposition Filed Within Time Limit; Oct 4, 2019
Publication Date: Nov 28, 2018
External Links: Slate, Register , Google Patents