Crosslinked Cation Exchange Polymers, Compositions And Use In Treating Hyperkalemia

Patent No. EP2365988 (titled "Crosslinked Cation Exchange Polymers, Compositions And Use In Treating Hyperkalemia") was filed by Relypsa on Aug 22, 2009. The application was issued on Jul 3, 2019.

Patent Family

Statuses, jurisdictions and citation links are shared on request.

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
TEVA PHARMACEUTICAL INDUSTRIES LTD	Apr 21, 2016	D YOUNG
HEXAL	Apr 18, 2016	BEST

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

Jun 6, 2019
Decision to maintain the European patent in amended form
Jun 6, 2019
Decision to maintain the European patent in amended form
Jun 6, 2019
Decision to maintain the European patent in amended form
Jun 3, 2019
Termination of the opposition proceedings with maintenance of patent
May 24, 2019
(Electronic) Receipt
May 24, 2019
Clean copy of description pages in the opposition procedure
May 24, 2019
Filing of the translation of the amended claims
May 24, 2019
French translation of claims
May 24, 2019
German translation of the claims
May 24, 2019
Letter accompanying subsequently filed items
May 20, 2019
Communication of bibliographic data
May 20, 2019
Communication to opponent concerning maintenance
May 20, 2019
Communication to opponent concerning maintenance
May 20, 2019
Communication with request to file translations
Mar 8, 2019
Maintenance of the patent with the documents specified in the final decision
Mar 4, 2019
Advice of delivery
Feb 22, 2019
Communication about missing proof of delivery
Feb 11, 2019
Advice of delivery
Feb 5, 2019
Advice of delivery
Feb 5, 2019
Advice of delivery
Feb 5, 2019
Cover sheet for fax transmission
Jan 25, 2019
Advice of delivery
Jan 24, 2019
Advice of delivery
Jan 22, 2019
Decision of the Board of Appeal
Jan 22, 2019
F3032 Notification(s) of the decision
Jan 22, 2019
F3032 Notification(s) of the decision
Jan 22, 2019
F3032 Notification(s) of the decision
Dec 14, 2018
Submission concerning representation
Nov 6, 2018
Advice of delivery
Oct 29, 2018
Composition of the board (T)
Oct 29, 2018
F3028 Inadmissibility of the appeal: non-submission of the statement of grounds
Oct 29, 2018
F3345 Forwarding of submissions to parties
Oct 29, 2018
F3345 Forwarding of submissions to parties
Jul 12, 2018
F3204 Communication of the file number to the parties
Jul 12, 2018
F3204 Communication of the file number to the parties
Jul 12, 2018
F3204 Communication of the file number to the parties
Jul 6, 2018
Processing of an appeal
Jul 5, 2018
(Electronic) Receipt
Jul 5, 2018
Letter accompanying subsequently filed items
Jul 5, 2018
Notice of appeal
Jun 11, 2018
Advice of delivery
May 28, 2018
Advice of delivery
May 23, 2018
Advice of delivery
May 21, 2018
Advice of delivery
May 21, 2018
Advice of delivery
May 21, 2018
Cover sheet for fax transmission
May 15, 2018
Acknowledgement of a document
May 15, 2018
Acknowledgement of a document
May 15, 2018
Acknowledgement of a document
May 15, 2018
Annex to the communication - opposition
May 15, 2018
Decision of the Opposition Division and instruction
May 15, 2018
Grounds for the decision (Annex) - opposition
May 15, 2018
Interlocutory decision in opposition proceedings
May 15, 2018
Internal form - Opposition/addressees
May 15, 2018
Internal form - Opposition/addressees
May 15, 2018
Means of redress
May 15, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 15, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 15, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
May 15, 2018
OPPODREX with handwritten amendments
May 15, 2018
Provision of a copy of the minutes - opposition procedure
May 15, 2018
Scanned annex to a communication - opposition procedure
May 15, 2018
Scanned annex to a communication - opposition procedure
May 15, 2018
Scanned annex to a communication - opposition procedure
Apr 12, 2018
Information about the result of oral proceedings
Feb 28, 2018
Brief communication - Opposition proceedings
Feb 28, 2018
Brief communication - Opposition proceedings
Feb 23, 2018
Brief communication - Opposition proceedings
Feb 23, 2018
Brief communication - Opposition proceedings
Feb 22, 2018
(Electronic) Receipt
Feb 22, 2018
Any annexes (other than citation) to an opposition letter
Feb 22, 2018
Letter accompanying subsequently filed items
Feb 22, 2018
Letter regarding the opposition procedure (no time limit)
Feb 19, 2018
(Electronic) Receipt
Feb 19, 2018
Authorisation
Feb 19, 2018
Letter accompanying subsequently filed items
Feb 19, 2018
Letter regarding the opposition procedure (no time limit)
Feb 16, 2018
Brief communication - Opposition proceedings
Feb 16, 2018
Brief communication - Opposition proceedings
Feb 16, 2018
Brief communication - Opposition proceedings
Feb 12, 2018
(Electronic) Receipt
Feb 12, 2018
(Electronic) Receipt
Feb 12, 2018
Amended claims with annotations
Feb 12, 2018
Amended claims with annotations
Feb 12, 2018
Amended claims with annotations
Feb 12, 2018
Amended claims with annotations
Feb 12, 2018
Amended claims with annotations
Feb 12, 2018
Amended claims with annotations
Feb 12, 2018
Amended claims with annotations
Feb 12, 2018
Brief communication - Opposition proceedings
Feb 12, 2018
Brief communication - Opposition proceedings
Feb 12, 2018
Citation in opposition procedure
Feb 12, 2018
Citation in opposition procedure
Feb 12, 2018
Citation in opposition procedure
Feb 12, 2018
Citation in opposition procedure
Feb 12, 2018
Citation in opposition procedure
Feb 12, 2018
Citation in opposition procedure
Feb 12, 2018
Citation in opposition procedure
Feb 12, 2018
Citation in opposition procedure
Feb 12, 2018
Citation in opposition procedure
Feb 12, 2018
Citation in opposition procedure
Feb 12, 2018
Letter accompanying subsequently filed items
Feb 12, 2018
Letter accompanying subsequently filed items
Feb 12, 2018
Letter regarding the opposition procedure (no time limit)
Feb 12, 2018
Letter regarding the opposition procedure (no time limit)
Feb 12, 2018
Non-patent literature cited during the opposition procedure
Feb 12, 2018
Non-patent literature cited during the opposition procedure
Feb 12, 2018
Non-patent literature cited during the opposition procedure
Feb 9, 2018
Brief communication - Opposition proceedings
Feb 9, 2018
Brief communication - Opposition proceedings
Feb 6, 2018
(Electronic) Receipt
Feb 6, 2018
Brief communication - Opposition proceedings
Feb 6, 2018
Brief communication - Opposition proceedings
Feb 6, 2018
Letter accompanying subsequently filed items
Feb 6, 2018
Request for interpreters during oral proceedings
Feb 2, 2018
Request for interpreters during oral proceedings
Jan 31, 2018
Request for interpreters during oral proceedings
Jan 18, 2018
Communication of the registration of a transfer or change of name and/or address
Jan 15, 2018
Brief communication - Opposition proceedings
Jan 15, 2018
Brief communication - Opposition proceedings
Dec 20, 2017
(Electronic) Receipt
Dec 20, 2017
Annexes in respect of a client data request
Dec 20, 2017
Letter accompanying subsequently filed items
Dec 20, 2017
Miscellaneous requests concerning client data
Dec 15, 2017
(Electronic) Receipt
Dec 15, 2017
Annexes in respect of a client data request
Dec 15, 2017
Letter accompanying subsequently filed items
Dec 15, 2017
Miscellaneous requests concerning client data
Dec 12, 2017
Indication of deficiencies in a request for registering a transfer of rights and invitation to correct them
Nov 30, 2017
(Electronic) Receipt
Nov 30, 2017
Annexes in respect of a client data request
Nov 30, 2017
Letter accompanying subsequently filed items
Nov 30, 2017
Submission concerning a transfer of rights (applicant)
May 16, 2017
Advice of delivery
May 8, 2017
Advice of delivery
Apr 27, 2017
Advice of delivery
Apr 27, 2017
Advice of delivery
Apr 25, 2017
Advice of delivery
Apr 20, 2017
Acknowledgement of a document
Apr 20, 2017
Acknowledgement of a document
Apr 20, 2017
Acknowledgement of a document
Apr 20, 2017
Annex to the communication - opposition
Apr 20, 2017
Information concerning oral proceedings
Apr 20, 2017
Preparation for oral proceedings
Apr 20, 2017
Summons to attend oral proceedings
Apr 20, 2017
Summons to attend oral proceedings
Apr 20, 2017
Summons to attend oral proceedings
Mar 14, 2017
Brief communication - Opposition proceedings
Mar 14, 2017
Brief communication - Opposition proceedings
Mar 10, 2017
Brief communication - Opposition proceedings
Mar 10, 2017
Brief communication - Opposition proceedings
Mar 8, 2017
Citation in opposition procedure
Mar 8, 2017
Letter regarding the opposition procedure (no time limit)
Mar 6, 2017
Any annexes (other than citation) to an opposition letter
Mar 6, 2017
Letter regarding the opposition procedure (no time limit)
Mar 6, 2017
Letter regarding the opposition procedure (no time limit)
Feb 27, 2017
Communication of amended entries concerning the representative
Feb 9, 2017
Brief communication - Opposition proceedings
Feb 9, 2017
Brief communication - Opposition proceedings
Feb 2, 2017
Letter regarding the opposition procedure (no time limit)
Jan 18, 2017
Brief communication - Opposition proceedings
Jan 18, 2017
Brief communication - Opposition proceedings
Jan 18, 2017
Brief communication - Opposition proceedings
Jan 10, 2017
Letter regarding the opposition procedure (no time limit)
Dec 7, 2016
Brief communication - Opposition proceedings
Dec 7, 2016
Brief communication - Opposition proceedings
Nov 22, 2016
Auxiliary request during Opposition procedure
Nov 22, 2016
Auxiliary request during Opposition procedure
Nov 22, 2016
Auxiliary request during Opposition procedure
Nov 22, 2016
Auxiliary request during Opposition procedure
Nov 22, 2016
Auxiliary request during Opposition procedure
Nov 22, 2016
Citation in opposition procedure
Nov 22, 2016
Citation in opposition procedure
Nov 22, 2016
Citation in opposition procedure
Nov 22, 2016
Non-patent literature cited during the opposition procedure
Nov 22, 2016
Reply of the patent proprietor to the notice(s) of opposition
Oct 31, 2016
Letter regarding the opposition procedure (no time limit)
Oct 14, 2016
Grant of extension of time limit (opposition procedure)
Oct 10, 2016
Letter regarding the opposition procedure (no time limit)
Oct 10, 2016
Request for extension of time limit
Sep 28, 2016
Communication of amended entries concerning the representative
Sep 28, 2016
Confirmation of revocation of automatic debit order
Sep 22, 2016
Submission concerning change of applicant's representative
Jun 1, 2016
Communication of a notice of opposition and request to file observations
Jun 1, 2016
Notice of further oppositions to opponent(s)
Jun 1, 2016
Notice of further oppositions to opponent(s)
Apr 29, 2016
Communication of a notice of opposition - first information to patent proprietor
Apr 29, 2016
Communication of a notice of opposition - first information to patent proprietor
Apr 21, 2016
Citation in opposition procedure
Apr 21, 2016
Citation in opposition procedure
Apr 21, 2016
Citation in opposition procedure
Apr 21, 2016
Citation in opposition procedure
Apr 21, 2016
Citation in opposition procedure
Apr 21, 2016
Notice of opposition
Apr 21, 2016
Notice of opposition
Apr 21, 2016
Patent document cited during the opposition procedure
Apr 21, 2016
Patent document cited during the opposition procedure
Apr 21, 2016
Patent document cited during the opposition procedure
Apr 21, 2016
Patent document cited during the opposition procedure
Apr 21, 2016
Patent document cited during the opposition procedure
Apr 21, 2016
Patent document cited during the opposition procedure
Apr 18, 2016
Non-patent literature cited during the opposition procedure
Apr 18, 2016
Non-patent literature cited during the opposition procedure
Apr 18, 2016
Non-scannable object
Apr 18, 2016
Non-scannable object
Apr 18, 2016
Notice of opposition
Apr 18, 2016
Patent document cited during the opposition procedure
Apr 18, 2016
Patent document cited during the opposition procedure
Apr 18, 2016
Patent document cited during the opposition procedure
Apr 18, 2016
Payment of fees and costs
Jul 22, 2015
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jun 25, 2015
Decision to grant a European patent
Jun 15, 2015
Communication of the registration of a transfer or change of name and/or address
Jun 5, 2015
(Electronic) Receipt
Jun 5, 2015
Filing of the translations of the claims
Jun 5, 2015
French translation of claims
Jun 5, 2015
German translation of the claims
Jun 5, 2015
Letter accompanying subsequently filed items
Feb 12, 2015
Bibliographic data of the European patent application
Feb 12, 2015
Communication about intention to grant a European patent
Feb 12, 2015
Intention to grant (signatures)
Feb 12, 2015
Text intended for grant
Sep 30, 2014
(Electronic) Receipt
Sep 30, 2014
Amended claims with annotations
Sep 30, 2014
Amended description with annotations
Sep 30, 2014
Claims
Sep 30, 2014
Description
Sep 30, 2014
Letter accompanying subsequently filed items
Sep 30, 2014
Reply to communication from the Examining Division
Jul 21, 2014
Annex to the communication
Jul 21, 2014
Consultation by telephone/in person (with time limit)
Jul 21, 2014
Result of consultation by telephone/in person
Apr 28, 2014
(Electronic) Receipt
Apr 28, 2014
Amended claims with annotations
Apr 28, 2014
Amended description with annotations
Apr 28, 2014
Claims
Apr 28, 2014
Description
Apr 28, 2014
Letter accompanying subsequently filed items
Apr 28, 2014
Reply to communication from the Examining Division
Feb 27, 2014
(Electronic) Receipt
Feb 27, 2014
Enquiry as to when a communication from the Examining Division can be expected
Feb 27, 2014
Letter accompanying subsequently filed items
Jan 9, 2014
Communication of the registration of a transfer or change of name and/or address
Nov 19, 2013
Submission concerning representation
Nov 4, 2013
(Electronic) Receipt
Nov 4, 2013
Letter accompanying subsequently filed items
Nov 4, 2013
Submission concerning change of applicant's address
Aug 30, 2013
(Electronic) Receipt
Aug 30, 2013
Amended claims with annotations
Aug 30, 2013
Claims
Aug 30, 2013
Letter accompanying subsequently filed items
Aug 30, 2013
Reply to communication from the Examining Division
Jul 3, 2013
Grant of extension of time limit (examination procedure)
Jun 28, 2013
(Electronic) Receipt
Jun 28, 2013
Letter accompanying subsequently filed items
Jun 28, 2013
Request for extension of time limit to communication from the Examining Division
Feb 19, 2013
Annex to the communication
Feb 19, 2013
Consultation by telephone/in person (with time limit)
Feb 19, 2013
Result of consultation by telephone/in person
Feb 8, 2013
Response to enquiry for communication from the Examining Division
Jan 29, 2013
(Electronic) Receipt
Jan 29, 2013
Enquiry as to when a communication from the Examining Division can be expected
Jan 29, 2013
Letter accompanying subsequently filed items
Jul 18, 2012
Communication of amended entries concerning the representative
Jul 11, 2012
Submission concerning representation
Jun 26, 2012
Response to enquiry for communication from the Examining Division
Jun 18, 2012
(Electronic) Receipt
Jun 18, 2012
General enquiry
Jun 18, 2012
Letter accompanying subsequently filed items
Sep 14, 2011
Decision to allow further processing
Sep 1, 2011
Request for further processing
Aug 24, 2011
Notification on forthcoming publication of bibliographic data
Aug 9, 2011
Communication of the registration of a transfer or change of name and/or address
Jul 8, 2011
Annexes in respect of a client data request
Jul 8, 2011
Annexes in respect of a client data request
Jul 8, 2011
Annexes in respect of a client data request
Jul 8, 2011
Submission concerning a transfer of rights (applicant)
Jul 8, 2011
Submission concerning a transfer of rights (applicant)
Jul 8, 2011
Submission concerning a transfer of rights (applicant)
Jun 22, 2011
Claim deemed abandoned
Jun 15, 2011
Note on telephone consultation
May 30, 2011
Letter relating to the automatic debiting procedure
May 18, 2011
Confirmation of revocation of automatic debit order
May 11, 2011
Amended claims filed after receipt of (European) search report
May 11, 2011
Amendments received before examination
May 4, 2011
Letter relating to the automatic debiting procedure
May 3, 2011
Letter relating to the automatic debiting procedure
Apr 28, 2011
Indication of deficiencies in a request for registering a transfer of rights and invitation to correct them
Apr 13, 2011
Letter concerning the inventor
Apr 1, 2011
Communication concerning correction of deficiences in Written Opinion/amendment of application/payment of claims fee
Mar 22, 2011
(Electronic) Receipt
Mar 22, 2011
Request for entry into the European phase
Mar 11, 2011
Copy of the international preliminary report on patentability
Dec 29, 2010
Information on entry into European phase
Sep 28, 2010
Reminder for payment period (examination fee/designation fees)
Sep 23, 2010
Copy of the international search report
Sep 23, 2010
International publication of the international search report
Aug 9, 2010
Written opinion of the ISA, boxes No. I to VIII
Aug 9, 2010
Written opinion of the ISA, cover sheet
Aug 9, 2010
Written opinion of the ISA, supplemental box
Mar 18, 2010
Priority document (electronically transmitted)
Mar 18, 2010
Priority document (electronically transmitted)
Mar 18, 2010
Priority document (electronically transmitted)
Mar 18, 2010
Priority document (electronically transmitted)
Mar 18, 2010
Priority document (electronically transmitted)
Mar 18, 2010
Priority document (electronically transmitted)
Feb 25, 2010
Published international application - A2
Nov 12, 2009
Abstract
Nov 12, 2009
Claims
Nov 12, 2009
Description
Nov 12, 2009
Drawings

EP2365988

RELYPSA

Application Number: EP09748557A
Filing Date: Aug 22, 2009
Status: Patent Maintained As Amended; May 31, 2019
Publication Date: Jul 3, 2019
External Links: Slate, Register , Google Patents

IP Verse

Crosslinked Cation Exchange Polymers, Compositions And Use In Treating Hyperkalemia

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP2365988