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International application No. Applicant's or agent's file reference
PCT/GB2018/050111 28 131490/01
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
16 January 2018 16 January 2017
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.


     G02B 5/08 (2006.01)i; G02B 5/26 (2006.01)i; G02B 5/28 (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 2003039035 A1 (YOSHIKAWA TAKEHISA [JP] ET AL) 27 February 2003 (2003-02-27)
paragraphs [0071], [0118] - [0122]
WO 2016156863 A2 (PARKER ANDREW RICHARD [GB]) 06 October 2016 (2016-10-06)
cited in the application
figures 21-24
WO 0129137 A1 (FLEX PRODUCTS INC [US]) 26 April 2001 (2001-04-26)
page 3, line 10
page 4, line 21 - page 5, line 10
WO 2011161482 A1 (PARKER ANDREW RICHARD [GB]) 29 December 2011 (2011-12-29)
cited in the application
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 2003039035 A1
27 February 2003
CN 1402021 A
JP 4213897 B2
JP 2003121612 A
KR 20030013248 A
KR 20040096445 A
KR 20050058311 A
TW I256486 B
TW I273968 B
US 2003039035 A1
US 2004061946 A1
US 2005041295 A1
12 March 2003
21 January 2009
23 April 2003
14 February 2003
16 November 2004
16 June 2005
11 June 2006
21 February 2007
27 February 2003
01 April 2004
24 February 2005
WO 2016156863 A2
06 October 2016
AU 2016240316 A1
CN 107407747 A
EP 3278150 A2
GB 2538172 A
KR 20170132857 A
WO 2016156863 A2
23 November 2017
28 November 2017
07 February 2018
09 November 2016
04 December 2017
06 October 2016
WO 0129137 A1
26 April 2001
AU 6083500 A
CA 2388375 A1
CN 1451029 A
EP 1230307 A1
EP 1418208 A2
JP 4925154 B2
JP 2003512497 A
TW I276670 B
US 6545809 B1
US 2003137736 A1
US 2003137737 A1
US 2004160672 A1
US 2004165272 A1
WO 0129137 A1
30 April 2001
26 April 2001
22 October 2003
14 August 2002
12 May 2004
25 April 2012
02 April 2003
21 March 2007
08 April 2003
24 July 2003
24 July 2003
19 August 2004
26 August 2004
26 April 2001
WO 2011161482 A1
29 December 2011
CN 103038676 A
CN 106842394 A
EP 2585862 A1
EP 3093694 A1
GB 2481697 A
US 2016116645 A1
WO 2011161482 A1
10 April 2013
13 June 2017
01 May 2013
16 November 2016
04 January 2012
28 April 2016
29 December 2011
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:
22 March 2018
Date of mailing of the international search report:
03 April 2018
Authorized officer:
Mollenhauer, Ralf
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