Artificial Turf System

Patent No. EP3505680 (titled "Artificial Turf System") was filed by DOW on Dec 28, 2017. The application was issued on Aug 24, 2022.

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.

Company	Opposition Date	Representative
FREUDENBERG PERFORMANCE MATERIALS	May 11, 2023	CPW

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

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Feb 2, 2026
Annex to the communication - opposition
Feb 2, 2026
Brief communication - Opposition proceedings
Feb 2, 2026
Brief communication - Opposition proceedings
Feb 2, 2026
Decision of the Opposition Division and instruction
Feb 2, 2026
Decision rejecting the opposition
Feb 2, 2026
Decision rejecting the opposition
Feb 2, 2026
Grounds for the decision (Annex) - opposition
Feb 2, 2026
Means of redress
Feb 2, 2026
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 2, 2026
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Feb 2, 2026
Provision of a copy of the minutes - opposition procedure
Feb 2, 2026
Provision of a copy of the minutes - opposition procedure
Dec 18, 2025
Information about the result of oral proceedings
Dec 17, 2025
Brief communication - Opposition proceedings
Dec 16, 2025
(Electronic) Receipt
Dec 16, 2025
Citation in opposition procedure - 005
Dec 16, 2025
Citation in opposition procedure - 006
Dec 16, 2025
Consolidated list of cited opposition documents
Dec 16, 2025
Letter accompanying subsequently filed items
Dec 16, 2025
Written submission in preparation to/during oral proceedings
Dec 3, 2025
Brief communication - Opposition proceedings
Nov 28, 2025
(Electronic) Receipt
Nov 28, 2025
Letter accompanying subsequently filed items
Nov 28, 2025
Written submission in preparation to/during oral proceedings
Oct 17, 2025
Brief communication - Opposition proceedings
Oct 14, 2025
(Electronic) Receipt
Oct 14, 2025
(Electronic) Receipt
Oct 14, 2025
Letter accompanying subsequently filed items
Oct 14, 2025
Letter accompanying subsequently filed items
Oct 14, 2025
Request for interpreters during oral proceedings
Oct 14, 2025
Written submission in preparation to/during oral proceedings
Jun 6, 2025
Annex to the communication - opposition
Jun 6, 2025
Information concerning oral proceedings
Jun 6, 2025
Scanned annex to a communication - opposition procedure
Jun 6, 2025
Summons to attend oral proceedings
Jun 6, 2025
Summons to attend oral proceedings
Jun 3, 2025
Information about the result of oral proceedings
May 20, 2025
Notification concerning the date of oral proceedings
May 20, 2025
Notification concerning the date of oral proceedings
May 13, 2025
Brief communication - Opposition proceedings
May 8, 2025
(Electronic) Receipt
May 8, 2025
Letter accompanying subsequently filed items
May 8, 2025
Oral proceedings: reply to date proposed
May 7, 2025
Annex to the communication - opposition
May 7, 2025
Information concerning oral proceedings
May 7, 2025
Scanned annex to a communication - opposition procedure
May 7, 2025
Summons to attend oral proceedings
May 7, 2025
Summons to attend oral proceedings
Mar 5, 2024
Brief communication - Opposition proceedings
Feb 29, 2024
(Electronic) Receipt
Feb 29, 2024
Letter accompanying subsequently filed items
Feb 29, 2024
Letter regarding the opposition procedure (no time limit)
Jan 31, 2024
Brief communication - Opposition proceedings
Jan 24, 2024
(Electronic) Receipt
Jan 24, 2024
Letter accompanying subsequently filed items
Jan 24, 2024
Letter regarding the opposition procedure (no time limit)
Jan 15, 2024
Brief communication - Opposition proceedings
Jan 9, 2024
(Electronic) Receipt
Jan 9, 2024
Letter accompanying subsequently filed items
Jan 9, 2024
Reply from the opponent to submission of proprietor
Oct 18, 2023
Brief communication - Opposition proceedings
Oct 12, 2023
(Electronic) Receipt
Oct 12, 2023
Auxiliary request during Opposition procedure - 01
Oct 12, 2023
Auxiliary request during Opposition procedure - 02
Oct 12, 2023
Auxiliary request during Opposition procedure - 03
Oct 12, 2023
Auxiliary request during Opposition procedure - 04
Oct 12, 2023
Auxiliary request during Opposition procedure - 05
Oct 12, 2023
Auxiliary request during Opposition procedure - 06
Oct 12, 2023
Auxiliary request during Opposition procedure - 07
Oct 12, 2023
Auxiliary request during Opposition procedure - 08
Oct 12, 2023
Letter accompanying subsequently filed items
Oct 12, 2023
Reply of the patent proprietor to the notice(s) of opposition
Aug 18, 2023
Brief communication - Opposition proceedings
Aug 18, 2023
Communication confirming withdrawal from representation
Aug 18, 2023
Communication of amended entries concerning the representative
Aug 11, 2023
(Electronic) Receipt
Aug 11, 2023
Letter accompanying subsequently filed items
Aug 11, 2023
Submission concerning change of proprietor's representative
Jun 13, 2023
Communication of a notice of opposition and request to file observations
Jun 13, 2023
Notice of further oppositions to opponent(s)
May 16, 2023
Communication of a notice of opposition - first information to patent proprietor
May 11, 2023
(Electronic) Receipt
May 11, 2023
Citation in opposition procedure - 001
May 11, 2023
Citation in opposition procedure - 002
May 11, 2023
Citation in opposition procedure - 003
May 11, 2023
Citation in opposition procedure - 004
May 11, 2023
Notice of opposition
May 11, 2023
Notice of opposition
Sep 6, 2022
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 28, 2022
Decision to grant a European patent
Jul 12, 2022
(Electronic) Receipt
Jul 12, 2022
Filing of the translations of the claims
Jul 12, 2022
French translation of claims
Jul 12, 2022
German translation of the claims
Jul 12, 2022
Letter accompanying subsequently filed items
Mar 23, 2022
Bibliographic data of the European patent application
Mar 23, 2022
Communication about intention to grant a European patent
Mar 23, 2022
Intention to grant (signatures)
Mar 23, 2022
Text intended for grant (clean copy)
Mar 23, 2022
Text intended for grant (version for approval)
Nov 5, 2021
Document concerning representation
Nov 4, 2020
(Electronic) Receipt
Nov 4, 2020
Amended claims with annotations
Nov 4, 2020
Claims
Nov 4, 2020
Letter accompanying subsequently filed items
Nov 4, 2020
Reply to communication from the Examining Division
Jul 29, 2020
Annex to the communication
Jul 29, 2020
Communication from the Examining Division
Jul 22, 2020
Examination started
Jan 2, 2020
(Electronic) Receipt
Jan 2, 2020
Amended claims filed after receipt of (European) search report
Jan 2, 2020
Amended claims with annotations
Jan 2, 2020
Amended description filed after receipt of (European) search report
Jan 2, 2020
Amended description with annotations
Jan 2, 2020
Amendments received before examination
Jan 2, 2020
Letter accompanying subsequently filed items
Jul 8, 2019
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Jun 5, 2019
Notification of forthcoming publication
Jun 12, 2018
Communication of amended entries concerning the representative
Jun 11, 2018
Communication regarding the transmission of the European search report
Jun 11, 2018
European search opinion
Jun 11, 2018
European search report
Jun 11, 2018
Information on Search Strategy
Jun 7, 2018
Submission concerning representation
May 31, 2018
Search started
Feb 20, 2018
Communication to designated inventor
Feb 20, 2018
Communication to designated inventor
Feb 20, 2018
Communication to designated inventor
Feb 20, 2018
Communication to designated inventor
Feb 20, 2018
Communication to designated inventor
Jan 24, 2018
Acknowledgement of receipt from National Office - R35(4)
Dec 28, 2017
Abstract
Dec 28, 2017
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Dec 28, 2017
Claims
Dec 28, 2017
Description
Dec 28, 2017
Designation of inventor
Dec 28, 2017
Drawings
Dec 28, 2017
Request for grant of a European patent

EP3505680

DOW

Application Number: EP17382915A
Filing Date: Dec 28, 2017
Status: Granted And Under Opposition; Jul 22, 2022
Publication Date: Aug 24, 2022
External Links: Slate, Register , Google Patents

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Artificial Turf System

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Dossier Documents

EP3505680