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The patent EP1521723 was granted to Remediation Products on Nov 2, 2022. The application was filed on Jun 30, 2003 under application number EP03764339A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 | Opposition Status |
|---|---|---|---|
| HELMHOLTZ ZENTRUM FUR UMWELTFORSCHUNG UFZ | May 18, 2020 | GULDE & PARTNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US4478954 |
| DESCRIPTION | US5534154 |
| DESCRIPTION | US5733067 |
| DESCRIPTION | WO9529129 |
| INTERNATIONAL-SEARCH-REPORT | US4478954 |
| INTERNATIONAL-SEARCH-REPORT | US5436211 |
| OPPOSITION | EP1521723 |
| OPPOSITION | US5534154 |
| OPPOSITION | WO2004007379 |
| SEARCH | US4478954 |
| SEARCH | US5534154 |
| SEARCH | US5733067 |
| SEARCH | WO9529129 |
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.
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Description
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Jul 25, 2019
Decision to grant a European patent
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Jul 12, 2019
(Electronic) Receipt
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Jul 12, 2019
Filing of the translations of the claims
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Jul 12, 2019
French translation of claims
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Jul 12, 2019
German translation of the claims
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Jul 12, 2019
Letter accompanying subsequently filed items
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Mar 20, 2019
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Intention to grant (signatures)
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Mar 20, 2019
Text intended for grant (clean copy)
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Mar 20, 2019
Feb 1, 2019
Annex to the communication
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Feb 1, 2019
Consultation by telephone/in person
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Feb 1, 2019
Jan 31, 2019
(Electronic) Receipt
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Jan 31, 2019
Letter accompanying subsequently filed items
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Jan 31, 2019
Dec 14, 2018
Annex to the communication
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Dec 14, 2018
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Nov 16, 2018
(Electronic) Receipt
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Nov 16, 2018
Letter accompanying subsequently filed items
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Nov 16, 2018
Non-patent literature filed by a third party
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Observations by third parties
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Oct 4, 2018
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Intention to grant (signatures)
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Oct 4, 2018
Text intended for grant (clean copy)
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Oct 4, 2018
Sep 7, 2018
(Electronic) Receipt
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Sep 7, 2018
Amended claims with annotations
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Sep 7, 2018
Amended description with annotations
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Sep 7, 2018
Claims
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Sep 7, 2018
Description
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Sep 7, 2018
Letter accompanying subsequently filed items
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Sep 7, 2018
Jun 5, 2018
Annex to the communication
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Jun 5, 2018
Communication from the Examining Division
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Feb 27, 2018
Feb 12, 2018
(Electronic) Receipt
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Feb 12, 2018
Enquiry as to the processing of the file
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Feb 12, 2018
Letter accompanying subsequently filed items
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Feb 8, 2018
Deficiencies in an enquiry
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Jan 31, 2018
(Electronic) Receipt
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Jan 31, 2018
General enquiry
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Jan 31, 2018
Letter accompanying subsequently filed items
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Jul 19, 2016
(Electronic) Receipt
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Jul 19, 2016
Amended claims with annotations
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Jul 19, 2016
Claims
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Jul 19, 2016
Letter accompanying subsequently filed items
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Jul 19, 2016
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Jun 30, 2016
(Electronic) Receipt
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Jun 30, 2016
Letter accompanying subsequently filed items
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Jun 30, 2016
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(Electronic) Receipt
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Apr 14, 2016
Letter accompanying subsequently filed items
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Apr 14, 2016
Submission concerning representation
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Apr 11, 2016
(Electronic) Receipt
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Apr 11, 2016
Letter accompanying subsequently filed items
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Apr 11, 2016
Feb 26, 2016
Annex to the communication
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Feb 26, 2016
Communication from the Examining Division
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Feb 16, 2015
(Electronic) Receipt
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Feb 16, 2015
Claims
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Feb 16, 2015
Letter accompanying subsequently filed items
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Feb 16, 2015
Oct 6, 2014
Annex to the communication
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Oct 6, 2014
Communication from the Examining Division
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Sep 10, 2014
Submission concerning representation
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Apr 4, 2013
(Electronic) Receipt
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Apr 4, 2013
Amended claims with annotations
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Apr 4, 2013
Amended description with annotations
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Apr 4, 2013
Claims
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Apr 4, 2013
Description
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Apr 4, 2013
Letter accompanying subsequently filed items
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Apr 4, 2013
Dec 3, 2012
Annex to the communication
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Dec 3, 2012
Communication from the Examining Division
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Jun 29, 2012
Submission concerning representation
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Mar 7, 2012
(Electronic) Receipt
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Mar 7, 2012
Claims
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Mar 7, 2012
Claims
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Mar 7, 2012
Letter accompanying subsequently filed items
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Mar 7, 2012
Feb 15, 2012
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(Electronic) Receipt
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Feb 9, 2012
Letter accompanying subsequently filed items
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Feb 9, 2012
Nov 29, 2011
Oct 19, 2011
(Electronic) Receipt
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Oct 19, 2011
Letter accompanying subsequently filed items
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Oct 19, 2011
Sep 29, 2011
Annex to the communication
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Sep 29, 2011
Communication from the Examining Division
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Mar 29, 2010
Mar 29, 2010
Mar 16, 2010
Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Mar 16, 2010
Non-patent literature filed by a third party
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Mar 16, 2010
Observations by third parties
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Dec 7, 2009
(Electronic) Receipt
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Dec 7, 2009
Claims
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Dec 7, 2009
Claims
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Dec 7, 2009
Description
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Dec 7, 2009
Description
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Dec 7, 2009
Letter accompanying subsequently filed items
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Dec 7, 2009
Oct 28, 2009
Jul 28, 2009
Annex to the communication
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Jul 28, 2009
Communication from the Examining Division
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Jun 30, 2009
(Electronic) Receipt
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Jun 30, 2009
Letter accompanying subsequently filed items
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Jun 30, 2009
Maintenance of the application
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May 8, 2009
Apr 21, 2009
Apr 21, 2009
Supplementary European search report
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Oct 31, 2007
Oct 22, 2007
Mar 2, 2005
Feb 23, 2005
Jan 19, 2005
Matter concerning the application
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Jan 19, 2005
Request for entry into the European phase
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Jan 12, 2005
Subsequently filed documents not duly signed
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Dec 23, 2004
Annex
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Dec 23, 2004
Matter concerning the application
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Dec 23, 2004
Payment of fees and costs
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Dec 23, 2004
Request for entry into the European phase
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Nov 26, 2004
Information on entry into European phase
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Nov 19, 2004
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May 25, 2004
Jan 22, 2004
Copy of the international search report
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Jan 22, 2004
Published international application - A1
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