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1. WO2021043751 - ANTI-FOULING DEVICE FOR HEAT EXCHANGERS AND ITS USE


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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/EP2020/074305 P51500WO
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
01 September 2020 02 September 2019
Applicant
ORION ENGINEERED CARBONS GMBH
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.
6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     1    
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

     F28D 7/16 (2006.01)i; F28F 19/00 (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):
     F28D; F28F
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
EP 1065467 A2 (ROHM & HAAS [US]) 03 January 2001 (2001-01-03)
1-12,15
Y
paragraphs [0051] - [0080]; figures 4a, 4b, 9
13,14
(2)
X
US 4735263 A (ANDRO JEAN [FR] ET AL) 05 April 1988 (1988-04-05)
1-12,15
Y
column 2, line 39 - column 3, line 8; figure 1
13,14
(3)
X
WO 2010139852 A1 (METSO POWER OY [FI]; OJANPERAE JUHA [FI]) 09 December 2010 (2010-12-09)
1-12,15
Y
page 4, line 29 - page 7, line 24; figures 2-5
13,14
(4)
X
EP 2881691 A1 (BALCKE DÜRR GMBH [DE]) 10 June 2015 (2015-06-10)
1-12,15
Y
paragraphs [0020] - [0033]; figures 4-6
13,14
(5)
X
EP 3499171 A1 (ALFA LAVAL OLMI S P A [IT]) 19 June 2019 (2019-06-19)
1-12,15
Y
paragraphs [0024] - [0038]; figures 1,3B, 3C
13,14
(6)
Y
EP 0777098 A2 (AMERICAN SCHACK COMPANY INC [US]) 04 June 1997 (1997-06-04)
13,14
cited in the application
column 6, line 28 - column 10, line 11; figure 1
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"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)
EP 1065467 A2
03 January 2001
AT 462114 T
AU 4090600 A
BR 0002949 A
EP 1065467 A2
JP 4781504 B2
JP 2001056194 A
KR 20010007436 A
TW 445365 B
US 2001040024 A1
US 2003192680 A1
ZA 200003071 B
15 April 2010
04 January 2001
30 January 2001
03 January 2001
28 September 2011
27 February 2001
26 January 2001
11 July 2001
15 November 2001
16 October 2003
17 January 2001
US 4735263 A
05 April 1988
CA 1273546 A
EP 0232527 A1
ES 2011247 B3
FR 2592147 A1
US 4735263 A
04 September 1990
19 August 1987
01 January 1990
26 June 1987
05 April 1988
WO 2010139852 A1
09 December 2010
BR PI1012977 A2
CA 2763578 A1
CL 2011003062 A1
CN 102460021 A
DK 2438356 T3
EP 2438356 A1
ES 2636744 T3
FI 20095621 A
PL 2438356 T3
PT 2438356 T
RU 2011153616 A
US 2012073483 A1
WO 2010139852 A1
16 January 2018
09 December 2010
31 August 2012
16 May 2012
24 July 2017
11 April 2012
09 October 2017
05 December 2010
31 October 2017
08 August 2017
20 July 2013
29 March 2012
09 December 2010
EP 2881691 A1
10 June 2015
EP 2881691 A1
EP 2881692 A1
ES 2672699 T3
JP 2015114100 A
KR 20150067054 A
US 2015159956 A1
10 June 2015
10 June 2015
15 June 2018
22 June 2015
17 June 2015
11 June 2015
EP 3499171 A1
19 June 2019
CN 111788452 A
EP 3499171 A1
EP 3724590 A1
KR 20200099170 A
WO 2019115583 A1
16 October 2020
19 June 2019
21 October 2020
21 August 2020
20 June 2019
EP 0777098 A2
04 June 1997
CA 2191379 A1
CN 1176375 A
EP 0777098 A2
JP H09329393 A
29 May 1997
18 March 1998
04 June 1997
22 December 1997
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:
22 October 2020
Date of mailing of the international search report:
04 November 2020
Authorized officer:
Axters, Michael
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