Please wait...



Goto Application


Disclaimer The image version (PDF) available on PATENTSCOPE is the official version. This online html version is provided to assist users. Despite the great care taken in its compilation to ensure a precise and accurate representation of the data appearing on the printed document/images, errors and/or omissions cannot be excluded due to the data transmittal, conversion and inherent limitations of the (optional) machine translation processes used. Hyperlinks followed by this symbol , are to external resources that are not controlled by WIPO. WIPO disclaims all liability regarding the above points.

Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/US2019/061988 SP18-447
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
18 November 2019 26 November 2018
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.
6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     3    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
none of the figures is to be published with the abstract.


     C03C 3/097 (2006.01)i; C03C 4/00 (2006.01)i; C03C 12/00 (2006.01)i; C03C 13/00 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
EPO-Internal, WPI Data


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2005064193 A1 (FECHNER JORG HINRICH [DE] ET AL) 24 March 2005 (2005-03-24)
paragraphs [0001], [0028], [0029]; examples 3,5; table 1
WO 9621628 A1 (BRINK MARIA [FI]; KARLSSON KAJ [FI]; YLI-URPO ANTTI [FI]) 18 July 1996 (1996-07-18)
pages 1,3,13, lines 1-5;7-10,36,37;12-15 - page and 25, line and 16; examples 6,11,15,17,19,20,22; table 1
US 7141520 B2 (SCHOTT AG [DE]) 28 November 2006 (2006-11-28)
columns 1,3, lines 4-10,36-40;1-4; example 11
US 7074730 B2 (IVOCLAR VIVADENT AG [LI]) 11 July 2006 (2006-07-11)
abstract;columns 1,5, lines 5-7,13,14,25-26;3-17 - column 6, lines ;28-33,35,38-40; examples 1,2,4,6,8,9,11,15; table 1
US 4171544 A (HENCH LARRY L [US] ET AL) 23 October 1979 (1979-10-23)
columns 1,2, lines 16,17,60,61;6,7
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
document cited by the applicant in the international application
earlier application or patent but published on or after the international filing date
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
document referring to an oral disclosure, use, exhibition or other means
document published prior to the international filing date but later than the priority date claimed
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
document member of the same patent family


Patent document cited in search report Publication date
Patent family member(s) Publication date
US 2005064193 A1
24 March 2005
DE 10293767 D2
US 2005064193 A1
WO 03018498 A1
29 September 2005
24 March 2005
06 March 2003
WO 9621628 A1
18 July 1996
AT 205815 T
AU 687658 B2
CA 2210070 A1
CZ 288646 B6
DE 69615337 T2
EP 0802890 A1
ES 2164230 T3
FI 101129 B
HU 9801232 A2
JP H10512227 A
PL 321182 A1
US 6054400 A
WO 9621628 A1
15 October 2001
26 February 1998
18 July 1996
15 August 2001
04 July 2002
29 October 1997
16 February 2002
30 April 1998
28 August 1998
24 November 1998
24 November 1997
25 April 2000
18 July 1996
US 7141520 B2
28 November 2006
AU 2002363868 A1
CN 1599702 A
EP 1453768 A1
US 2005009682 A1
WO 03050051 A1
23 June 2003
23 March 2005
08 September 2004
13 January 2005
19 June 2003
US 7074730 B2
11 July 2006
AT 435192 T
DE 10307646 B3
EP 1449815 A2
JP 4477377 B2
JP 2004249113 A
US 2004167006 A1
15 July 2009
21 October 2004
25 August 2004
09 June 2010
09 September 2004
26 August 2004
US 4171544 A
23 October 1979
AU 522940 B2
CA 1117796 A
DE 2910335 A1
DE 2954180 C2
FR 2421595 A1
GB 2020197 A
JP S6247546 B2
JP S54135496 A
NL 7902497 A
US 4171544 A
01 July 1982
09 February 1982
18 October 1979
16 April 1987
02 November 1979
14 November 1979
08 October 1987
20 October 1979
09 October 1979
23 October 1979
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
02 March 2020
Date of mailing of the international search report:
06 March 2020
Authorized officer:
Philippart, Anahí
Top    Part 1: 1 2 3 4 5 6         Part 2: A B C D E