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The patent EP1791519 was granted to BTG on Jul 19, 2017. The application was filed on Nov 17, 2004 under application number EP04798550A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| CHEMISCHE FABRIK KREUSSLER | Apr 19, 2018 | DOMPATENT VON KREISLER SELTING WERNER | ADMISSIBLE |
| CHEMISCHE FABRIK KREUSSLER | Apr 19, 2018 | DOMPATENT VON PATENT UND RECHTSANWALTEN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | WO0072821 |
| INTERNATIONAL-SEARCH-REPORT | WO0241872 |
| INTERNATIONAL-SEARCH-REPORT | WO03099681 |
| INTERNATIONAL-SEARCH-REPORT | WO2004062461 |
| OPPOSITION | GB2369996 |
| OPPOSITION | US5733572 |
| OPPOSITION | WO0072821 |
| OPPOSITION | WO0241872 |
| OPPOSITION | WO9503835 |
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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Aug 3, 2021
Refund of fees
Appeal
Aug 3, 2021
Jul 30, 2021
Jul 27, 2021
Jul 27, 2021
Jul 22, 2021
(Electronic) Receipt
Appeal
Jul 22, 2021
Jul 22, 2021
Jul 22, 2021
Withdrawal of an appeal
Appeal
Jul 1, 2021
Jul 1, 2021
May 19, 2021
(Electronic) Receipt
Appeal
May 19, 2021
May 19, 2021
May 18, 2021
May 10, 2021
May 10, 2021
May 4, 2021
Apr 16, 2020
Apr 6, 2020
(Electronic) Receipt
Appeal
Apr 6, 2020
Apr 6, 2020
Apr 6, 2020
Apr 6, 2020
Apr 6, 2020
Apr 6, 2020
Apr 6, 2020
Claims
Appeal
Apr 6, 2020
Apr 6, 2020
Reply to appeal
Appeal
Mar 11, 2020
Mar 2, 2020
Dec 10, 2019
Dec 5, 2019
(Electronic) Receipt
Appeal
Dec 5, 2019
Dec 5, 2019
Oct 23, 2019
Oct 2, 2019
(Electronic) Receipt
Appeal
Oct 2, 2019
Oct 2, 2019
Notice of appeal
Appeal
Aug 1, 2019
Aug 1, 2019
Jul 31, 2019
Jul 29, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Means of redress
OPPO
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jun 7, 2019
Apr 29, 2019
Submission concerning representation
Search/Exam
Apr 11, 2019
Apr 5, 2019
Apr 5, 2019
Apr 5, 2019
Apr 5, 2019
Apr 1, 2019
Apr 1, 2019
Apr 1, 2019
Mar 29, 2019
Mar 26, 2019
Mar 25, 2019
Mar 25, 2019
Mar 25, 2019
Jan 24, 2019
Jan 16, 2019
Jan 15, 2019
Jan 10, 2019
Jan 10, 2019
Jan 10, 2019
Jan 10, 2019
Jan 10, 2019
Jan 10, 2019
Jan 10, 2019
Oct 12, 2018
Oct 12, 2018
Oct 12, 2018
Oct 12, 2018
Oct 8, 2018
Oct 8, 2018
Authorisation
OPPO
Oct 8, 2018
Oct 8, 2018
Sep 21, 2018
Sep 14, 2018
Sep 14, 2018
Sep 14, 2018
Sep 14, 2018
Sep 14, 2018
Sep 14, 2018
Sep 14, 2018
Sep 14, 2018
Claims
OPPO
Sep 14, 2018
Sep 14, 2018
May 7, 2018
May 7, 2018
Apr 25, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Apr 19, 2018
Jul 19, 2017
Jun 22, 2017
Decision to grant a European patent
Search/Exam
Jun 13, 2017
Jun 13, 2017
Jun 13, 2017
Intention to grant (signatures)
Search/Exam
Jun 13, 2017
Text intended for grant (clean copy)
Search/Exam
Jun 13, 2017
Jun 7, 2017
May 17, 2017
(Electronic) Receipt
Search/Exam
May 17, 2017
French translation of claims
Search/Exam
May 17, 2017
German translation of the claims
Search/Exam
May 17, 2017
Letter accompanying subsequently filed items
Search/Exam
May 17, 2017
Jan 20, 2017
Jan 20, 2017
Jan 20, 2017
Intention to grant (signatures)
Search/Exam
Jan 20, 2017
Text intended for grant (clean copy)
Search/Exam
Jan 20, 2017
Oct 20, 2016
Annex to the communication
Search/Exam
Oct 20, 2016
Consultation by telephone/in person
Search/Exam
Oct 20, 2016
Oct 19, 2016
(Electronic) Receipt
Search/Exam
Oct 19, 2016
Amended claims with annotations
Search/Exam
Oct 19, 2016
Amended description with annotations
Search/Exam
Oct 19, 2016
Claims
Search/Exam
Oct 19, 2016
Description
Search/Exam
Oct 19, 2016
Drawings
Search/Exam
Oct 19, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2016
Dec 1, 2014
Nov 25, 2014
Nov 18, 2014
Nov 13, 2014
(Electronic) Receipt
Search/Exam
Nov 13, 2014
Letter accompanying subsequently filed items
Search/Exam
Nov 13, 2014
Jul 31, 2012
(Electronic) Receipt
Search/Exam
Jul 31, 2012
Amended claims with annotations
Search/Exam
Jul 31, 2012
Claims
Search/Exam
Jul 31, 2012
Letter accompanying subsequently filed items
Search/Exam
Jul 31, 2012
May 24, 2012
May 18, 2012
(Electronic) Receipt
Search/Exam
May 18, 2012
Letter accompanying subsequently filed items
Search/Exam
May 18, 2012
Feb 8, 2012
Annex to the communication
Search/Exam
Feb 8, 2012
Communication from the Examining Division
Search/Exam
May 4, 2011
Apr 29, 2011
Mar 22, 2011
Mar 3, 2009
May 26, 2008
Decision to allow further processing
Search/Exam
May 13, 2008
Claims
Search/Exam
May 13, 2008
Claims
Search/Exam
May 13, 2008
May 9, 2008
Annex
Search/Exam
May 9, 2008
Claims
Search/Exam
May 9, 2008
Claims
Search/Exam
May 9, 2008
Letter accompanying subsequently filed items
Search/Exam
May 9, 2008
May 3, 2008
Request for further processing
Search/Exam
May 1, 2008
Letter concerning fees and payments
Search/Exam
May 1, 2008
Request for further processing
Search/Exam
Mar 4, 2008
Nov 22, 2007
Nov 21, 2007
Nov 19, 2007
Jul 19, 2007
Annex to the communication
Search/Exam
Jul 19, 2007
Communication from the Examining Division
Search/Exam
May 9, 2007
Apr 26, 2007
Note on telephone consultation
Search/Exam
Oct 26, 2006
Copy of the international search report
Search/Exam
Oct 26, 2006
Oct 24, 2006
Jul 19, 2006
Jul 19, 2006
Refund order search fee
Search/Exam
Jul 17, 2006
Enquiry with the International Bureau
Search/Exam
Jul 14, 2006
Letter concerning fees and payments
Search/Exam
Jul 12, 2006
Letter concerning fees and payments
Search/Exam
Jul 12, 2006
Letter which had not been notified
Search/Exam
Jul 12, 2006
Letter which had not been notified
Search/Exam
Jul 3, 2006
Notice on debiting of fees
Search/Exam
Jun 22, 2006
Annex
Search/Exam
Jun 22, 2006
Letter concerning fees and payments
Search/Exam
Jun 22, 2006
Letter concerning search matters
Search/Exam
Jun 22, 2006
Request for entry into the European phase
Search/Exam
Jun 16, 2006
Fax request to enter the European phase
Search/Exam
May 3, 2006
May 3, 2006
Apr 24, 2006
Notification of the recording of a change
Search/Exam
Apr 24, 2006
Notification of the recording of a change
Search/Exam
Apr 7, 2006
Information on entry into European phase
Search/Exam
Jul 5, 2005
Jul 5, 2005
Notification of the recording of a change
Search/Exam
Jun 21, 2005
Jun 21, 2005
Jun 21, 2005
Jun 21, 2005
Jun 2, 2005
Published international application - A2
Search/Exam
Feb 16, 2005
Dec 1, 2004
Abstract
PCTISA
Dec 1, 2004
Claims
PCTISA
Dec 1, 2004
Description
PCTISA
Dec 1, 2004
Drawings
PCTISA