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International application No. Applicant's or agent's file reference
PCT/US2019/067346 04796-1325WO
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
19 December 2019 28 December 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 filed or furnished:
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.     2    
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.


     H04L 29/06 (2006.01)i; H04L 29/12 (2006.01)i; H04L 29/08 (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:
Korean utility models and applications for utility models
Japanese utility models and applications for utility models
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
eKOMPASS(KIPO internal) & Keywords: domain name-based access request, policy, blocked, query, internet protocol (IP) address


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 9467421 B2 (HUAGANG XIE) 11 October 2016 Column 2, line 31 – column 3, line 36; column 4, line 12 – column 5, line 61; claims 1-2; and figures 1-4
US 2009-0055929 A1 (PAN JUNG LEE et al.) 26 February 2009 Paragraphs [0048], [0053]-[0063]; claim 1; and figures 1-3
US 8935748 B2 (JEROMY S. STATIA et al.) 13 January 2015 Column 6, line 4 – column 7, line 21; claim 1; and figure 2
US 2009-0031028 A1 (CHENDIL KUMAR et al.) 29 January 2009 Paragraphs [0048]-[0055]; claim 1; and figure 3
WO 2017-105906 A1 (MICROSOFT TECHNOLOGY LICENSING, LLC) 22 June 2017 Paragraphs [0036]-[0048]; claim 1; and figures 3-4
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 9467421 B2
11 October 2016
EP 2715522 A4
EP 2715522 A1
EP 2715522 B1
EP 3264720 A1
IL 229530 D0
JP 6006788 B2
JP 2014-519751 A
US 9762543 B2
US 2012-0303808 A1
US 2016-0294877 A1
WO 2012-162099 A1
18 March 2015
09 April 2014
12 July 2017
03 January 2018
30 January 2014
12 October 2016
14 August 2014
12 September 2017
29 November 2012
06 October 2016
29 November 2012
US 2009-0055929 A1
26 February 2009
KR 10-2006-0093306 A
WO 2006-101310 A1
24 August 2006
28 September 2006
US 8935748 B2
13 January 2015
US 2017-0329850 A1
US 9740781 B2
US 2009-0112814 A1
US 2015-0199430 A1
16 November 2017
22 August 2017
30 April 2009
16 July 2015
US 2009-0031028 A1
29 January 2009
US 7734792 B2
08 June 2010
WO 2017-105906 A1
22 June 2017
CN 108370391 A
EP 3391627 A1
US 10356038 B2
US 2017-0171146 A1
03 August 2018
24 October 2018
16 July 2019
15 June 2017
Name and mailing address of the ISA/:
Korean Intellectual Property Office
189 Cheongsa-ro, Seo-gu, Daejeon Metropolitan City, 302-701
Republic of Korea
Facsimile No. +82-42-481-8578
Date of the actual completion of the international search:
27 April 2020
Date of mailing of the international search report:
27 April 2020
Authorized officer:
KIM, Sung Hee
Telephone No. +82-42-481-3516
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