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The patent EP1021997 was granted to Bego Bremer Goldschlgerei Wilh Herbst on Jul 1, 2020. The application was filed on Dec 21, 1999 under application number EP99125490A. 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 |
|---|---|---|---|
| CADSPEED | Apr 17, 2018 | STIPPL | INTERVENTION |
| DENTAURUM | Apr 3, 2017 | HOEGER | INTERVENTION |
| S & S SCHEFTNER | Feb 20, 2017 | SCHULTHEISS & STERZEL PATENTANWALTE PARTG MBB | INTERVENTION |
| CONCEPT LASER | Dec 18, 2008 | HAFNER & KOHL PARTMBB | INTERVENTION |
| CENDRES METAUX | Feb 6, 2008 | FREI PATENT ATTORNEYS | ADMISSIBLE |
| SLM SOLUTIONS | Feb 6, 2008 | SCHICKER | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE19649865 |
| OPPOSITION | DE19651909 |
| OPPOSITION | DE3311343 |
| OPPOSITION | DE3532331 |
| OPPOSITION | EP0311214 |
| OPPOSITION | EP0499721 |
| OPPOSITION | JPH05329174 |
| OPPOSITION | JPH0910234 |
| OPPOSITION | US4673355 |
| OPPOSITION | US5639402 |
| SEARCH | EP0348061 |
| SEARCH | FR2754704 |
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 5, 2020
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Jun 4, 2020
Refund of fees
OPPO
May 29, 2020
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Submission concerning representation
Search/Exam
Oct 18, 2012
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Reply to appeal
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Communication of amended entries
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General enquiry
OPPO
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Authorisation
OPPO
Dec 18, 2008
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Apr 13, 2007
Decision to grant a European patent
Search/Exam
Mar 23, 2007
English translation of the claims
Search/Exam
Mar 23, 2007
Filing of the translations of the claims
Search/Exam
Mar 23, 2007
French translation of claims
Search/Exam
Nov 23, 2006
Nov 23, 2006
Nov 23, 2006
Intention to grant (signatures)
Search/Exam
Nov 23, 2006
Text intended for grant
Search/Exam
Nov 15, 2006
General enquiry
Search/Exam
Jul 7, 2006
May 12, 2006
General enquiry
Search/Exam
Oct 28, 2005
Claims
Search/Exam
Oct 28, 2005
Description
Search/Exam
Oct 28, 2005
Oct 26, 2005
Claims
Search/Exam
Oct 26, 2005
Description
Search/Exam
Oct 26, 2005
Sep 12, 2005
Aug 31, 2005
Apr 25, 2005
Annex to the communication
Search/Exam
Apr 25, 2005
Communication from the Examining Division
Search/Exam
Jan 27, 2005
Jan 7, 2005
Request for change of name
Search/Exam
Nov 11, 2004
Oct 30, 2004
Request for change of name
Search/Exam
Sep 9, 2003
Submission concerning representation
Search/Exam
Mar 11, 2002
Feb 27, 2002
Letter concerning fees and payments
Search/Exam
Feb 26, 2002
Letter concerning fees and payments
Search/Exam
Feb 26, 2002
Letter concerning fees and payments
Search/Exam
Feb 25, 2002
Letter concerning fees and payments
Search/Exam
Dec 28, 2001
Nov 2, 2001
Annex to European Search report
Search/Exam
Nov 2, 2001
Nov 2, 2001
European search report
Search/Exam
Sep 25, 2001
Aug 22, 2001
Matter concerning the application
Search/Exam
Jun 15, 2000
Notification of forthcoming publication
Search/Exam
Mar 15, 2000
Communication to designated inventor
Search/Exam
Mar 15, 2000
Communication to designated inventor
Search/Exam
Feb 2, 2000
Letter concerning the priority
Search/Exam
Feb 2, 2000
Priority document
Search/Exam
Dec 21, 1999
Abstract
Search/Exam
Dec 21, 1999
Claims
Search/Exam
Dec 21, 1999
Description
Search/Exam
Dec 21, 1999
Designation of inventor
Search/Exam
Dec 21, 1999
Request for grant of a European patent
Search/Exam