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Extract from the Register of European Patents

EP About this file: EP3548581

EP3548581 - COMPOSITION FOR REMEDIATING IRON SULFIDE IN OILFIELD PRODUCTION SYSTEMS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  12.07.2024
Database last updated on 17.09.2024
FormerThe patent has been granted
Status updated on  04.08.2023
FormerGrant of patent is intended
Status updated on  19.03.2023
FormerExamination is in progress
Status updated on  31.07.2020
FormerRequest for examination was made
Status updated on  06.09.2019
FormerThe international publication has been made
Status updated on  08.06.2018
Formerunknown
Status updated on  03.01.2018
Most recent event   Tooltip02.08.2024Lapse of the patent in a contracting state
New state(s): SI		published on 04.09.2024  [2024/36]
Applicant(s)For all designated states
ChampionX USA Inc.
11177 S. Stadium Dr.
Sugar Land, TX 77478 / US
[2023/36]
Former [2019/41]For all designated states
Ecolab USA, Inc.
1 Ecolab Place
St. Paul, Minnesota 55102 / US
Inventor(s)01 / BENNETT, Brian Michael
423 Abbott Circle
Sugar Land, Texas 77478 / US
02 / SOLOMON, Kim R.
337 Devin Lane
River Falls, Wisconsin 54022 / US
03 / SILVERNAIL, Carter
705 Chicago Drive
Burnsville, Minnesota 55306 / US
 [2019/41]
Representative(s)HGF
HGF Limited
1 City Walk
Leeds LS11 9DX / GB
[2023/36]
Former [2019/41]HGF Limited
Delta House
50 West Nile Street
Glasgow G1 2NP / GB
Application number, filing date17817551.930.11.2017
[2019/41]
WO2017US63860
Priority number, dateUS201662428123P30.11.2016         Original published format: US 201662428123 P
[2019/41]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2018102503
Date:07.06.2018
Language:EN
[2018/23]
Type: A1 Application with search report 
No.:EP3548581
Date:09.10.2019
Language:EN
The application published by WIPO in one of the EPO official languages on 07.06.2018 takes the place of the publication of the European patent application.
[2019/41]
Type: B1 Patent specification 
No.:EP3548581
Date:06.09.2023
Language:EN
[2023/36]
Search report(s)International search report - published on:EP07.06.2018
ClassificationIPC:C09K8/524, C09K8/532, C09K8/54, C23F11/12, C23F11/14
[2019/41]
CPC:
C09K8/54 (EP,US); C09K8/524 (EP,US); C09K8/532 (EP,US);
C11D1/00 (US); C23F11/04 (US); C23F11/10 (EP,US);
C23F11/126 (US); C23F11/149 (EP,US); C23F11/161 (EP,US);
C23G1/061 (EP,US); C23G1/065 (EP,US); C23G1/088 (EP,US);
C09K2208/32 (EP,US) (-)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2019/41]
Extension statesBANot yet paid
MENot yet paid
Validation statesMANot yet paid
MDNot yet paid
TitleGerman:ZUSAMMENSETZUNG ZUR SANIERUNG VON EISENSULFID IN ÖLFELDPRODUKTIONSSYSTEMEN[2019/41]
English:COMPOSITION FOR REMEDIATING IRON SULFIDE IN OILFIELD PRODUCTION SYSTEMS[2019/41]
French:COMPOSITION POUR ÉLIMINER LE SULFURE DE FER DANS DES SYSTÈMES DE PRODUCTION DE CHAMP DE PÉTROLE[2019/41]
Entry into regional phase30.05.2019National basic fee paid 
30.05.2019Designation fee(s) paid 
30.05.2019Examination fee paid 
Examination procedure30.05.2019Examination requested  [2019/41]
30.05.2019Date on which the examining division has become responsible
16.01.2020Amendment by applicant (claims and/or description)
31.07.2020Despatch of a communication from the examining division (Time limit: M04)
01.12.2020Reply to a communication from the examining division
08.07.2021Despatch of a communication from the examining division (Time limit: M02)
03.09.2021Reply to a communication from the examining division
20.03.2023Communication of intention to grant the patent
22.07.2023Receipt of the translation of the claim(s)
27.07.2023Fee for grant paid
27.07.2023Fee for publishing/printing paid
Divisional application(s)EP23194956.1  / EP4296403
Opposition(s)07.06.2024No opposition filed within time limit [2024/33]
Fees paidRenewal fee
14.11.2019Renewal fee patent year 03
13.11.2020Renewal fee patent year 04
30.11.2021Renewal fee patent year 05
13.10.2022Renewal fee patent year 06
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Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT06.09.2023
CZ06.09.2023
DK06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
IT06.09.2023
LT06.09.2023
LV06.09.2023
MC06.09.2023
PL06.09.2023
RS06.09.2023
SE06.09.2023
SI06.09.2023
SK06.09.2023
SM06.09.2023
CH30.11.2023
LU30.11.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
[2024/36]
Former [2024/34]AT06.09.2023
CZ06.09.2023
DK06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
IT06.09.2023
LT06.09.2023
LV06.09.2023
MC06.09.2023
PL06.09.2023
RS06.09.2023
SE06.09.2023
SK06.09.2023
SM06.09.2023
CH30.11.2023
LU30.11.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
Former [2024/33]AT06.09.2023
CZ06.09.2023
DK06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
IT06.09.2023
LT06.09.2023
LV06.09.2023
MC06.09.2023
PL06.09.2023
RS06.09.2023
SE06.09.2023
SK06.09.2023
SM06.09.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
Former [2024/32]AT06.09.2023
CZ06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
IT06.09.2023
LT06.09.2023
LV06.09.2023
MC06.09.2023
PL06.09.2023
RS06.09.2023
SE06.09.2023
SK06.09.2023
SM06.09.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
Former [2024/26]AT06.09.2023
CZ06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
IT06.09.2023
LT06.09.2023
LV06.09.2023
PL06.09.2023
RS06.09.2023
SE06.09.2023
SK06.09.2023
SM06.09.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
Former [2024/25]AT06.09.2023
CZ06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
LT06.09.2023
LV06.09.2023
PL06.09.2023
RS06.09.2023
SE06.09.2023
SK06.09.2023
SM06.09.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
Former [2024/23]AT06.09.2023
CZ06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
LT06.09.2023
LV06.09.2023
RS06.09.2023
SE06.09.2023
SK06.09.2023
SM06.09.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
Former [2024/20]FI06.09.2023
HR06.09.2023
LT06.09.2023
LV06.09.2023
RS06.09.2023
SE06.09.2023
SM06.09.2023
GR07.12.2023
IS06.01.2024
Former [2024/10]FI06.09.2023
HR06.09.2023
LT06.09.2023
LV06.09.2023
RS06.09.2023
SE06.09.2023
GR07.12.2023
Former [2024/09]FI06.09.2023
LT06.09.2023
SE06.09.2023
GR07.12.2023
Former [2024/08]LT06.09.2023
GR07.12.2023
Cited inInternational search[Y]US4276185  (MARTIN LARRY D) [Y] 1,8-18,21-23,25,26 * claims 15,27 *;
 [A]US4633949  (CROWE CURTIS W [US]) [A] 1-34* claims 1,9 *;
 [Y]US2009149356  (TIWARI LAXMIKANT [GB], et al) [Y] 1,8-18,21-23,25,26 * example 4; claims 1,4,8 *;
 [X]CN105036365  (SUZHOU YOUJUN ENVIRONMENT SCIENCE & TECHNOLOGY CO LTD) [X] 1-7,19,20,24,27-32 * paragraphs [0002] , [0004]; example 2; claim 1 *;
 [X]WO2016105381  (MULTI CHEM GROUP LLC [US]) [X] 27,28,30,31,33,34 * page 5, lines 23-30; claims 1,2,5 * * page 3, lines 6-9 *;
 [T]  - Anonymous, "Natriumgluconat | 527-07-1", Chemicalbook, (20171231), URL: http://www.chemicalbook.com/ChemicalProductProperty_DE_CB9229989.htm, (20180123), XP055443331 [T] 1-34 * the whole document *
 [A]  - ROBERT TALBOT ET AL, "TetrakisHydroxymethylPhosphonium Sulfate (THPS) for Dissolving Iron Sulfides Downhole and Topsides - A Study of the Chemistry Influencing Dissolution", CORROSION, (20020407), pages 1 - 14, XP055443209 [A] 1-34 * page 2 *
 [A]  - JULIET YAP ET AL, "Removing Iron Sulfide Scale: A Novel Approach", ABU DHABI INTERNATIONAL PETROLEUM EXHIBITION AND CONFERENCE, (20100101), doi:10.2118/138520-MS, XP055443526 [A] 1-34 * page 1 - page 3; table 1 *

DOI:   http://dx.doi.org/10.2118/138520-MS
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.