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Method For Preparing An Aqueous Acrylamide Solution Having A Low Acrylic Acid Concentration

Patent No. EP3201348 (titled "Method For Preparing An Aqueous Acrylamide Solution Having A Low Acrylic Acid Concentration") was filed by Basf on Sep 30, 2015. The application was issued on Jun 29, 2022.

Patent Summary

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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.

Company	Opposition Date	Representative
SNF	Oct 23, 2019	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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Jun 2, 2022
Decision to maintain the European patent in amended form
Jun 2, 2022
Decision to maintain the European patent in amended form
May 27, 2022
Termination of the opposition proceedings with maintenance of patent
May 23, 2022
(Electronic) Receipt
May 23, 2022
French translation of claims
May 23, 2022
German translation of the claims
May 23, 2022
Letter accompanying subsequently filed items
Mar 14, 2022
Communication of bibliographic data
Mar 14, 2022
Communication to opponent concerning maintenance
Mar 14, 2022
Communication with request to file translations
Mar 11, 2022
(Electronic) Receipt
Mar 11, 2022
General enquiry
Mar 11, 2022
Letter accompanying subsequently filed items
Mar 7, 2022
Maintenance of the patent with the documents specified in the final decision
Nov 12, 2021
Advice of delivery
Nov 11, 2021
Annex to the communication - opposition
Nov 11, 2021
Decision of the Opposition Division and instruction
Nov 11, 2021
Druckexemplar in opposition procedure
Nov 11, 2021
Grounds for the decision (Annex) - opposition
Nov 11, 2021
Interlocutory decision in opposition proceedings
Nov 11, 2021
Interlocutory decision in opposition proceedings
Nov 11, 2021
Means of redress
Nov 11, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 11, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 11, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 11, 2021
Provision of a copy of the minutes - opposition procedure
Nov 11, 2021
Provision of a copy of the minutes - opposition procedure
Nov 11, 2021
Scanned annex to a communication - opposition procedure
Nov 11, 2021
Scanned annex to a communication - opposition procedure
Nov 11, 2021
Transmittal of decision / summons - opposition
Nov 11, 2021
Transmittal of decision / summons - opposition
Sep 28, 2021
Information about the result of oral proceedings
Sep 13, 2021
(Electronic) Receipt
Sep 7, 2021
Notification concerning the date of oral proceedings
Sep 7, 2021
Notification concerning the date of oral proceedings
Aug 2, 2021
Brief communication - Opposition proceedings
Jul 27, 2021
(Electronic) Receipt
Jul 27, 2021
Auxiliary request during Opposition procedure
Jul 27, 2021
Auxiliary request during Opposition procedure
Jul 27, 2021
Auxiliary request during Opposition procedure
Jul 27, 2021
Auxiliary request during Opposition procedure
Jul 27, 2021
Auxiliary request during Opposition procedure
Jul 27, 2021
Auxiliary request during Opposition procedure
Jul 27, 2021
Auxiliary request during Opposition procedure
Jul 27, 2021
Auxiliary request during Opposition procedure
Jul 27, 2021
Auxiliary request during Opposition procedure - 01
Jul 27, 2021
Auxiliary request during Opposition procedure - 02
Jul 27, 2021
Auxiliary request during Opposition procedure - 03
Jul 27, 2021
Auxiliary request during Opposition procedure - 04
Jul 27, 2021
Auxiliary request during Opposition procedure - 05
Jul 27, 2021
Auxiliary request during Opposition procedure - 06
Jul 27, 2021
Auxiliary request during Opposition procedure - 07
Jul 27, 2021
Auxiliary request during Opposition procedure - 08
Jul 27, 2021
Letter accompanying subsequently filed items
Jul 27, 2021
Main request during Opposition procedure
Jul 27, 2021
Main request during Opposition procedure
Jul 27, 2021
Written submission in preparation to/during oral proceedings
Jun 30, 2021
Brief communication - Opposition proceedings
Jun 22, 2021
(Electronic) Receipt
Jun 22, 2021
Citation in opposition procedure - 005
Jun 22, 2021
Citation in opposition procedure - 005
Jun 22, 2021
Citation in opposition procedure - 006
Jun 22, 2021
Citation in opposition procedure - 010
Jun 22, 2021
Consolidated list of cited opposition documents
Jun 22, 2021
Request for interpreters during oral proceedings
Jun 22, 2021
Written submission in preparation to/during oral proceedings
Jun 8, 2021
Advice of delivery
May 3, 2021
Annex to the communication - opposition
May 3, 2021
Annex to the communication - opposition
May 3, 2021
Internal form - Opposition/addressees
May 3, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 3, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 3, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
May 3, 2021
Provision of a copy of the minutes - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Scanned annex to a communication - opposition procedure
May 3, 2021
Transmittal of decision / summons - opposition
May 3, 2021
Transmittal of decision / summons - opposition
Apr 8, 2021
Brief communication - Opposition proceedings
Mar 31, 2021
(Electronic) Receipt
Mar 31, 2021
Letter accompanying subsequently filed items
Mar 31, 2021
Written submission in preparation to/during oral proceedings
Mar 29, 2021
Information about the result of oral proceedings
Mar 1, 2021
(Electronic) Receipt
Mar 1, 2021
Letter accompanying subsequently filed items
Jan 21, 2021
Brief communication - Opposition proceedings
Jan 18, 2021
(Electronic) Receipt
Jan 18, 2021
Oral proceedings: reply to date proposed
Jan 13, 2021
Notification concerning the date of oral proceedings
Jan 13, 2021
Notification concerning the date of oral proceedings
Nov 25, 2020
(Electronic) Receipt
Nov 25, 2020
Letter accompanying subsequently filed items
Nov 25, 2020
Oral proceedings: reply to date proposed
Oct 21, 2020
Notification concerning the date of oral proceedings
Oct 21, 2020
Notification concerning the date of oral proceedings
Oct 14, 2020
Advice of delivery
Sep 25, 2020
Communication about missing advice of delivery
Sep 3, 2020
Communication about missing advice of delivery
Jul 14, 2020
Advice of delivery
Jul 8, 2020
Acknowledgement of a document
Jul 8, 2020
Acknowledgement of a document
Jul 8, 2020
Annex to the communication - opposition
Jul 8, 2020
Information concerning oral proceedings
Jul 8, 2020
Scanned annex to a communication - opposition procedure
Jul 8, 2020
Summons to attend oral proceedings
Jul 8, 2020
Summons to attend oral proceedings
Mar 19, 2020
Brief communication - Opposition proceedings
Mar 16, 2020
(Electronic) Receipt
Mar 16, 2020
Amended claims with annotations
Mar 16, 2020
Letter accompanying subsequently filed items
Mar 16, 2020
Main request during Opposition procedure
Mar 16, 2020
Reply of the patent proprietor to the notice(s) of opposition
Nov 8, 2019
Communication of a notice of opposition and request to file observations
Nov 8, 2019
Notice of further oppositions to opponent(s)
Oct 29, 2019
Communication of a notice of opposition - first information to patent proprietor
Oct 23, 2019
(Electronic) Receipt
Oct 23, 2019
Citation in opposition procedure - 001
Oct 23, 2019
Citation in opposition procedure - 002
Oct 23, 2019
Citation in opposition procedure - 003
Oct 23, 2019
Citation in opposition procedure - 004
Oct 23, 2019
Citation in opposition procedure - 004
Oct 23, 2019
Citation in opposition procedure - 005
Oct 23, 2019
Citation in opposition procedure - 006
Oct 23, 2019
Citation in opposition procedure - 007
Oct 23, 2019
Citation in opposition procedure - 008
Oct 23, 2019
Citation in opposition procedure - 009
Oct 23, 2019
Notice of opposition
Oct 23, 2019
Notice of opposition
Sep 30, 2019
Confirmation of revocation of automatic debit order
Sep 25, 2019
Letter relating to the automatic debiting procedure
Sep 6, 2019
Submission concerning representation
Apr 11, 2019
Communication of amended entries concerning the representative
Apr 4, 2019
(Electronic) Receipt
Apr 4, 2019
Letter accompanying subsequently filed items
Apr 4, 2019
Submission concerning representation
Feb 4, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jan 7, 2019
Decision to grant a European patent
Dec 5, 2018
(Electronic) Receipt
Dec 5, 2018
French translation of claims
Dec 5, 2018
German translation of the claims
Dec 5, 2018
Letter accompanying subsequently filed items
Nov 8, 2018
Communication confirming withdrawal from representation
Nov 8, 2018
Notification of termination of representative's authorisation
Nov 2, 2018
(Electronic) Receipt
Nov 2, 2018
Letter accompanying subsequently filed items
Nov 2, 2018
Submission concerning change of applicant's representative
Aug 30, 2018
Bibliographic data of the European patent application
Aug 30, 2018
Communication about intention to grant a European patent
Aug 30, 2018
Intention to grant (signatures)
Aug 30, 2018
Text intended for grant (clean copy)
Aug 30, 2018
Text intended for grant (sequence listing)
Aug 30, 2018
Text intended for grant (version for approval)
Jun 29, 2018
(Electronic) Receipt
Jun 29, 2018
Amended claims with annotations
Jun 29, 2018
Claims
Jun 29, 2018
Letter accompanying subsequently filed items
Jun 29, 2018
Reply to communication from the Examining Division
May 28, 2018
Grant of extension of time limit (examination procedure)
May 22, 2018
(Electronic) Receipt
May 22, 2018
Letter accompanying subsequently filed items
May 22, 2018
Request for extension of time limit to communication from the Examining Division
Apr 20, 2018
Submission concerning representation
Jan 17, 2018
Annex to the communication
Jan 17, 2018
Communication from the Examining Division
Jan 9, 2018
Examination started
Nov 22, 2017
(Electronic) Receipt
Nov 22, 2017
Amended claims filed after receipt of (European) search report
Nov 22, 2017
Amended claims with annotations
Nov 22, 2017
Amendments received before examination
Nov 22, 2017
Letter accompanying subsequently filed items
Jul 12, 2017
Notification on forthcoming publication of bibliographic data
May 12, 2017
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
May 10, 2017
Communication to designated inventor
May 10, 2017
Communication to designated inventor
May 10, 2017
Communication to designated inventor
May 10, 2017
Communication to designated inventor
May 10, 2017
Communication to designated inventor
May 10, 2017
Communication to designated inventor
May 10, 2017
Communication to designated inventor
May 10, 2017
Communication to designated inventor
May 10, 2017
Communication to designated inventor
Apr 27, 2017
(Electronic) Receipt
Apr 27, 2017
Request for entry into the European phase
Apr 18, 2017
Copy of the international preliminary report on patentability
Feb 10, 2017
Information on entry into European phase
Apr 28, 2016
Priority document (electronically transmitted)
Apr 7, 2016
Converted Sequence Listing
Apr 7, 2016
Copy of the international search report
Apr 7, 2016
Published international application - A1
Dec 23, 2015
Notification of the recording of a change
Dec 23, 2015
Notification of the recording of a change
Dec 22, 2015
ISR: cited documents
Dec 18, 2015
Written opinion of the ISA, boxes No. I to VIII
Dec 18, 2015
Written opinion of the ISA, cover sheet
Dec 18, 2015
Written opinion of the ISA, supplemental box
Dec 3, 2015
Notification of the recording of a change
Dec 3, 2015
Notification of the recording of a change
Nov 18, 2015
Incoming letter related to PCT RO
Nov 17, 2015
Communication in cases for which no other form is applicable
Nov 17, 2015
Notification of receipt of Search copy
Nov 11, 2015
Request form for international application (copy for ISA/EP)
Oct 30, 2015
Document concerning fees and payments
Oct 7, 2015
Notification of the international application number and of the international filing date
Sep 30, 2015
(Electronic) Receipt
Sep 30, 2015
Abstract
Sep 30, 2015
Claims
Sep 30, 2015
Description
Sep 30, 2015
Document concerning fees and payments
Sep 30, 2015
Electronic request for grant of an International application
Sep 30, 2015
Priority document (RO-procedure)

EP3201348

BASF

Application Number: EP15788335A
Filing Date: Sep 30, 2015
Status: Patent Maintained As Amended; May 27, 2022
Publication Date: Jun 29, 2022
External Links: Slate, Register , Google Patents