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1. (WO2019050394) SUBSEA TRENCHER AND METHOD FOR SUBSEA TRENCHING



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INTERNATIONAL SEARCH REPORT (ISR)
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/NL2018/050567 W/2XP97/62
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
04 September 2018 05 September 2017
Applicant
BLUEMARINE OFFSHORE YARD SERVICES B.V.
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)).
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)).
c.
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.

The invention provides a subsea trencher (1) for arranging at least partly into the seabed a subsea pipeline (55) laying on the seabed, the subsea trencher comprising: • - at least one cart (5, 7) that separately carries at least one trench tool (9) and is configured to run along the subsea pipeline, wherein the trench tool is configured to work the seabed underneath the subsea pipeline; CHARACTERIZED BY • - a subsea support frame (3), that carries, separately from the cart, heavy subsea equipment connected to the trench tool for operating the trench tool, and wherein when the subsea support frame is fixed to the cart, the subsea trencher is configured to load at least substantially the assembled weight of the cart and subsea support frame onto the subsea pipeline as the subsea trencher runs on the subsea pipeline, when the subsea support frame is separate from the cart, the subsea support frame is configured to be suspended above the seabed or arranged beside the subsea pipeline at a distance from the subsea pipeline as the cart runs along the subsea pipeline.


6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     2, 5B    
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.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     E02F 5/10 (2006.01)i; E02F 3/88 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
     E02F
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

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
WO 2009141409 A2 (SAIPEM SPA [IT]; LAZZARIN DIEGO [IT]; FONTOLAN MASSIMO [IT]) 26 November 2009 (2009-11-26)
1-3,5-7,13,16,23,24,27-29
Y
figures 1-3, 8, 9, 10a to 10d
1,4,8,9,17-21,26,27,30-33
page 12, line 12 - page 15, line 26
page 11, line 1 - page 15, line 26:
(2)
X
US 3583170 A (DEVRIES DOUWE) 08 June 1971 (1971-06-08)
1,2,5-7,10-12,16,22,25,27,28
Y
figure 18
1,4,8,9,13-15,17-21,26,27,30-33
figure 1 to 10
figure 12
(3)
Y
WO 2017017599 A1 (SAIPEM SPA [IT]) 02 February 2017 (2017-02-02)
9,13-15
figure 9a to 9d
(4)
Y
US 6022173 A (SAXON SAINT E [US]) 08 February 2000 (2000-02-08)
17-21,31-33
figures 11, 12
(5)
Y
US 4087981 A (NORMAN ROBERT M) 09 May 1978 (1978-05-09)
1,8,9,27
figures 1-3
(6)
Y
GB 2014538 A (LAND & MARINE ENG LTD) 30 August 1979 (1979-08-30)
17-21,31-33
figure 1 to 3
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"E"
earlier application or patent but published on or after the international filing date
"L"
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)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
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
"X"
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
"Y"
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

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
WO 2009141409 A2
26 November 2009
CA 2725374 A1
EA 201071353 A1
EP 2283186 A2
US 2011211913 A1
WO 2009141409 A2
26 November 2009
30 December 2011
16 February 2011
01 September 2011
26 November 2009
US 3583170 A
08 June 1971
NONE
WO 2017017599 A1
02 February 2017
EP 3329055 A1
US 2018216314 A1
WO 2017017599 A1
06 June 2018
02 August 2018
02 February 2017
US 6022173 A
08 February 2000
NONE
US 4087981 A
09 May 1978
NONE
GB 2014538 A
30 August 1979
NONE
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Netherlands
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
14 January 2019
Date of mailing of the international search report:
23 January 2019
Authorized officer:
Bultot, Coralie
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