Disposable Diaper

Patent No. EP3863580 (titled "Disposable Diaper") was filed by LK Mahnke on Oct 4, 2019. The application was issued on Jan 4, 2023.

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
ESSITY HYGIENE AND HEALTH AKTIEBOLAG	May 23, 2023	HOFFMANN EITLE

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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Dec 5, 2025
F3345 Forwarding of submissions to parties
Dec 2, 2025
(Electronic) Receipt
Dec 2, 2025
Letter accompanying subsequently filed items
Dec 2, 2025
Letter relating to Appeal Procedure
Oct 16, 2025
F3345 Forwarding of submissions to parties
Oct 15, 2025
F3345 Forwarding of submissions to parties
Oct 13, 2025
(Electronic) Receipt
Oct 13, 2025
Letter accompanying subsequently filed items
Oct 13, 2025
Reply to appeal
Oct 10, 2025
(Electronic) Receipt
Oct 10, 2025
Letter accompanying subsequently filed items
Oct 10, 2025
Reply to appeal
Jul 17, 2025
F3056 Communication: Change of Board due to the technical nature of the appeal
Jul 17, 2025
F3056 Communication: Change of Board due to the technical nature of the appeal
Jul 9, 2025
Composition of the board (T)
Jun 12, 2025
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jun 12, 2025
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jun 5, 2025
(Electronic) Receipt
Jun 5, 2025
Amended claims with annotations
Jun 5, 2025
Amended claims with annotations
Jun 5, 2025
Amended claims with annotations
Jun 5, 2025
Amended claims with annotations
Jun 5, 2025
Amended claims with annotations
Jun 5, 2025
Amended claims with annotations
Jun 5, 2025
Auxiliary request during appeals procedure - 12
Jun 5, 2025
Auxiliary request during appeals procedure - 13
Jun 5, 2025
Auxiliary request during appeals procedure - 14
Jun 5, 2025
Auxiliary request during appeals procedure - 15
Jun 5, 2025
Auxiliary request during appeals procedure - 16
Jun 5, 2025
Auxiliary request during appeals procedure - 17
Jun 5, 2025
Letter accompanying subsequently filed items
Jun 5, 2025
Statement of grounds of appeal
Jun 4, 2025
(Electronic) Receipt
Jun 4, 2025
Letter accompanying subsequently filed items
Jun 4, 2025
Statement of grounds of appeal
May 7, 2025
Brief communication - Opposition proceedings
Apr 30, 2025
(Electronic) Receipt
Apr 30, 2025
Letter accompanying subsequently filed items
Apr 30, 2025
Request for correction
Apr 11, 2025
F3204 Communication of the file number to the parties
Apr 11, 2025
F3204 Communication of the file number to the parties
Apr 10, 2025
F3204 Communication of the file number to the parties
Apr 10, 2025
F3204 Communication of the file number to the parties
Apr 7, 2025
(Electronic) Receipt
Apr 7, 2025
Notice of appeal
Apr 7, 2025
Notice of appeal
Apr 4, 2025
(Electronic) Receipt
Apr 4, 2025
Letter accompanying subsequently filed items
Apr 4, 2025
Notice of appeal
Feb 5, 2025
Annex to the communication - opposition
Feb 5, 2025
Brief communication - Opposition proceedings
Feb 5, 2025
Brief communication - Opposition proceedings
Feb 5, 2025
Decision of the Opposition Division and instruction
Feb 5, 2025
Druckexemplar in opposition procedure
Feb 5, 2025
Grounds for the decision (Annex) - opposition
Feb 5, 2025
Interlocutory decision in opposition proceedings
Feb 5, 2025
Interlocutory decision in opposition proceedings
Feb 5, 2025
Means of redress
Feb 5, 2025
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 5, 2025
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Feb 5, 2025
Provision of a copy of the minutes - opposition procedure
Feb 5, 2025
Provision of a copy of the minutes - opposition procedure
Feb 5, 2025
Scanned annex to a communication - opposition procedure
Jan 16, 2025
Information about the result of oral proceedings
Nov 20, 2024
Brief communication - Opposition proceedings
Nov 20, 2024
Brief communication - Opposition proceedings
Nov 15, 2024
(Electronic) Receipt
Nov 15, 2024
Letter accompanying subsequently filed items
Nov 14, 2024
(Electronic) Receipt
Nov 14, 2024
(Electronic) Receipt
Nov 14, 2024
Citation in opposition procedure - 012
Nov 14, 2024
Citation in opposition procedure - 012
Nov 14, 2024
Consolidated list of cited opposition documents
Nov 14, 2024
Letter accompanying subsequently filed items
Nov 14, 2024
Letter accompanying subsequently filed items
Nov 14, 2024
Written submission in preparation to/during oral proceedings
Sep 17, 2024
Brief communication - Opposition proceedings
Sep 12, 2024
(Electronic) Receipt
Sep 12, 2024
Auxiliary request during Opposition procedure
Sep 12, 2024
Auxiliary request during Opposition procedure
Sep 12, 2024
Auxiliary request during Opposition procedure
Sep 12, 2024
Auxiliary request during Opposition procedure
Sep 12, 2024
Auxiliary request during Opposition procedure - 08
Sep 12, 2024
Auxiliary request during Opposition procedure - 09
Sep 12, 2024
Auxiliary request during Opposition procedure - 10
Sep 12, 2024
Auxiliary request during Opposition procedure - 11
Sep 12, 2024
Letter accompanying subsequently filed items
Sep 12, 2024
Written submission in preparation to/during oral proceedings
Feb 6, 2024
Annex to the communication - opposition
Feb 6, 2024
Brief communication - Opposition proceedings
Feb 6, 2024
Brief communication - Opposition proceedings
Feb 6, 2024
Information concerning oral proceedings
Feb 6, 2024
Scanned annex to a communication - opposition procedure
Feb 6, 2024
Summons to attend oral proceedings
Feb 6, 2024
Summons to attend oral proceedings
Jan 4, 2024
Brief communication - Opposition proceedings
Dec 21, 2023
(Electronic) Receipt
Dec 21, 2023
Letter accompanying subsequently filed items
Dec 21, 2023
Reply from the opponent to submission of proprietor
Oct 30, 2023
Brief communication - Opposition proceedings
Oct 25, 2023
(Electronic) Receipt
Oct 25, 2023
Auxiliary request during Opposition procedure
Oct 25, 2023
Auxiliary request during Opposition procedure
Oct 25, 2023
Auxiliary request during Opposition procedure
Oct 25, 2023
Auxiliary request during Opposition procedure
Oct 25, 2023
Auxiliary request during Opposition procedure
Oct 25, 2023
Auxiliary request during Opposition procedure
Oct 25, 2023
Auxiliary request during Opposition procedure
Oct 25, 2023
Auxiliary request during Opposition procedure - 01
Oct 25, 2023
Auxiliary request during Opposition procedure - 02
Oct 25, 2023
Auxiliary request during Opposition procedure - 03
Oct 25, 2023
Auxiliary request during Opposition procedure - 04
Oct 25, 2023
Auxiliary request during Opposition procedure - 05
Oct 25, 2023
Auxiliary request during Opposition procedure - 06
Oct 25, 2023
Auxiliary request during Opposition procedure - 07
Oct 25, 2023
Letter accompanying subsequently filed items
Oct 25, 2023
Reply of the patent proprietor to the notice(s) of opposition
Jun 15, 2023
Communication of a notice of opposition and request to file observations
Jun 15, 2023
Notice of further oppositions to opponent(s)
May 26, 2023
Communication of a notice of opposition - first information to patent proprietor
May 23, 2023
(Electronic) Receipt
May 23, 2023
Any annexes (other than citation) to an opposition letter
May 23, 2023
Citation in opposition procedure - 001
May 23, 2023
Citation in opposition procedure - 002
May 23, 2023
Citation in opposition procedure - 003
May 23, 2023
Citation in opposition procedure - 004
May 23, 2023
Citation in opposition procedure - 005
May 23, 2023
Citation in opposition procedure - 006
May 23, 2023
Citation in opposition procedure - 007
May 23, 2023
Citation in opposition procedure - 008
May 23, 2023
Citation in opposition procedure - 009
May 23, 2023
Citation in opposition procedure - 010
May 23, 2023
Citation in opposition procedure - 011
May 23, 2023
Notice of opposition
May 23, 2023
Notice of opposition
Dec 2, 2022
Correction to published European patent application/patent specification
Nov 28, 2022
Communication concerning corrected entries of the applicant
Nov 17, 2022
Communication concerning corrected entries of the applicant
Nov 15, 2022
(Electronic) Receipt
Nov 15, 2022
Letter accompanying subsequently filed items
Nov 15, 2022
Request for correction of the publication
Nov 10, 2022
Communication concerning corrected entries of the applicant
Nov 7, 2022
(Electronic) Receipt
Nov 7, 2022
Letter accompanying subsequently filed items
Nov 7, 2022
Request for correction of the publication
Sep 13, 2022
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 4, 2022
Decision to grant a European patent
Jul 22, 2022
(Electronic) Receipt
Jul 22, 2022
English translation of the claims
Jul 22, 2022
Filing of the translations of the claims
Jul 22, 2022
French translation of claims
May 11, 2022
Bibliographic data of the European patent application
May 11, 2022
Communication about intention to grant a European patent
May 11, 2022
Intention to grant (signatures)
May 11, 2022
Text intended for grant (clean copy)
May 11, 2022
Text intended for grant (version for approval)
Mar 29, 2022
Examination started
Jan 28, 2022
(Electronic) Receipt
Jan 28, 2022
Priority search results
Jan 28, 2022
Reply to invitation to file a copy of priority search results
Jan 11, 2022
Invitation to file a copy of search results(priority)
Dec 13, 2021
Refund of fees
Oct 6, 2021
(Electronic) Receipt
Oct 6, 2021
Letter concerning fees and payments
Jul 21, 2021
Notification on forthcoming publication of bibliographic data
May 19, 2021
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Apr 26, 2021
Copy of the international preliminary report on patentability
Apr 16, 2021
(Electronic) Receipt
Apr 16, 2021
Request for entry into the European phase
Feb 19, 2021
Information on entry into European phase
May 28, 2020
Priority document (electronically transmitted)
Apr 16, 2020
Copy of the international search report
Apr 16, 2020
Copy of the translated international search report
Apr 16, 2020
Published international application - A1
Dec 3, 2019
Notification of the recording of a change
Dec 3, 2019
Notification of the recording of a change
Nov 15, 2019
Incoming letter related to PCT RO
Oct 28, 2019
Notification of receipt of Search copy
Oct 25, 2019
Communication in cases for which no other form is available
Oct 25, 2019
Notification of the international application number and of the international filing date
Oct 22, 2019
Request form for international application (copy for ISA/EP)
Oct 17, 2019
Incoming letter related to PCT RO
Oct 4, 2019
(Electronic) Receipt
Oct 4, 2019
Abstract
Oct 4, 2019
Claims
Oct 4, 2019
Description
Oct 4, 2019
Document concerning fees and payments
Oct 4, 2019
Drawings
Oct 4, 2019
Electronic request for grant of an International application

EP3863580

LK MAHNKE

Application Number: EP19786743A
Filing Date: Oct 4, 2019
Status: Granted And Under Opposition; Jul 29, 2022
Publication Date: Jan 4, 2023
External Links: Slate, Register , Google Patents

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Dossier Documents

EP3863580