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1. (WO2019049046) LOW NOX AND CO COMBUSTION BURNER METHOD AND APPARATUS



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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/IB2018/056780 JZ-17-P-4-WO
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
05 September 2018 05 September 2017
Applicant
JOHN ZINK COMPANY, LLC
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
This International Searching Authority found multiple inventions in this international application, as follows:
1. claims: 1-24
Method of low NOx combustion and corresponding burner; a burner tile is surrounded by a furnace environment and a primary combustion zone is defined within the burner tile for a lean, low NOx first combustion step
2. claims: 25-39
Method of controlling low NOx combustion and corresponding burner system, e.g. within a furnace; a primary combustion zone is defined by a burner tile for a lean, low NOx first combustion step; flow rates are adjusted based on fuel composition and/or adiabatic flame temperature and/or measured NOx values in the furnace. 
1.
As all required additional search fees were timely paid by the applicant, this international search report covers all searchable claims.
2.
As all searchable claims could be searched without effort justifying additional fees, this Authority did not invite payment of additional fees.
3.
As only some of the required additional search fees were timely paid by the applicant, this international search report covers only those claims for which fees were paid, specifically claims Nos.:
4.
No required additional search fees were timely paid by the applicant. Consequently, this international search report is restricted to the invention first mentioned in the claims; it is covered by claims Nos.:
Remark on Protest
The additional search fees were accompanied by the applicant’s protest and, where applicable, the payment of a protest fee.
The additional search fees were accompanied by the applicant’s protest but the applicable protest fee was not paid within the time limit specified in the invitation.
No protest accompanied the payment of additional search fees.
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.     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.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     F23D 14/02 (2006.01)i; F23D 14/64 (2006.01)i; F23N 5/18 (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):
     F23D; F23N
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)
Y
US 5407345 A (ROBERTSON THOMAS [US] ET AL) 18 April 1995 (1995-04-18)
32
A
column 1, lines 5,6; figures 1-3, 4A-4C
1-31,33-39
column 1, line 52 - column 2, line 13
column 2, line 20 - line 35
column 3, line 58 - column 4, line 13
column 4, line 25 - column 5, line 27
column 5, line 63 - column 7, line 14
column 7, line 42 - column 8, line 16
column 8, line 32 - line 42
(2)
Y
US 5605452 A (ROBERTSON THOMAS F [US] ET AL) 25 February 1997 (1997-02-25)
32
A
column 1, line 6 - line 40; figures 2B, 5
1-31,33-39
column 2, line 62 - column 3, line 38
column 4, line 34 - line 39
column 4, line 43 - line 63
column 5, line 23 - column 6, line 18
column 7, line 18 - line 50
(3)
A
DE 3419891 A1 (STIEBEL ELTRON GMBH & CO KG [DE]) 28 November 1985 (1985-11-28)
25-39
page 2, line 1 - line 3; claim 1; figure 1
page 3, line 13 - page 6, line 10
(4)
A
EP 0562710 A2 (ZINK CO JOHN [US]) 29 September 1993 (1993-09-29)
1-24
column 1, line 1 - line 4; figures 1-4
column 2, line 4 - line 25
column 2, line 44 - column 4, line 53
column 5, line 7 - line 45
(5)
A
US 2005175945 A1 (CHUNG I-PING [US] ET AL) 11 August 2005 (2005-08-11)
1,9
paragraph [0003]; figures 1-4
paragraph [0021] - paragraph [0024]
paragraph [0027] - paragraph [0032]
(6)
A
CN 201903058 U (LUOYANG RUICHANG PETROCHEMICAL EQUIPMENT CO LTD) 20 July 2011 (2011-07-20)
1,9
the whole document
*
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)
US 5407345 A
18 April 1995
US 5407345 A
US 5554021 A
18 April 1995
10 September 1996
US 5605452 A
25 February 1997
AU 5878496 A
CA 2223394 A1
DE 69606640 D1
DE 69606640 T2
EP 0830545 A1
US 5605452 A
WO 9639596 A1
24 December 1996
12 December 1996
16 March 2000
06 July 2000
25 March 1998
25 February 1997
12 December 1996
DE 3419891 A1
28 November 1985
NONE
EP 0562710 A2
29 September 1993
CA 2076705 A1
EP 0562710 A2
JP 2633452 B2
JP H0618011 A
TW 227037 B
US 5195884 A
28 September 1993
29 September 1993
23 July 1997
25 January 1994
21 July 1994
23 March 1993
US 2005175945 A1
11 August 2005
NONE
CN 201903058 U
20 July 2011
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:
26 February 2019
Date of mailing of the international search report:
06 March 2019
Authorized officer:
Hauck, Gunther
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