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Extract from the Register of European Patents

EP About this file: EP3870669

EP3870669 - ADDITIVES FOR STEAM-INJECTION OIL RECOVERY [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  07.04.2023
Database last updated on 12.10.2024
FormerGrant of patent is intended
Status updated on  22.07.2022
FormerRequest for examination was made
Status updated on  30.07.2021
FormerThe international publication has been made
Status updated on  02.05.2020
Formerunknown
Status updated on  12.11.2019
Most recent event   Tooltip07.04.2023Application deemed to be withdrawnpublished on 10.05.2023  [2023/19]
Applicant(s)For all designated states
ChampionX USA Inc.
11177 S. Stadium Dr.
Sugar Land, TX 77478 / US
[2021/35]
Inventor(s)01 / NGUYEN, Duy T.
6111 Driscoll Park Drive
Richmond, Texas 77407 / US
02 / MYERS, David F.
2 Lapaloma Ct.
Angleton, Texas 77515 / US
03 / BOYD, Tyler D.
219 Marshall St., Apt. 235
Houston, Texas 77006 / US
 [2021/35]
Representative(s)HGF
HGF Limited
1 City Walk
Leeds LS11 9DX / GB
[N/P]
Former [2021/35]HGF
1 City Walk
Leeds LS11 9DX / GB
Application number, filing date19797963.617.10.2019
[2021/35]
WO2019US56696
Priority number, dateUS201862751013P26.10.2018         Original published format: US 201862751013 P
[2021/35]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020086369
Date:30.04.2020
Language:EN
[2020/18]
Type: A1 Application with search report 
No.:EP3870669
Date:01.09.2021
Language:EN
The application published by WIPO in one of the EPO official languages on 30.04.2020 takes the place of the publication of the European patent application.
[2021/35]
Search report(s)International search report - published on:EP30.04.2020
ClassificationIPC:C09K8/592, E21B43/24
[2021/35]
CPC:
E21B43/2406 (EP); E21B43/241 (US); C09K8/592 (EP,US);
C10G1/047 (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 [2021/35]
TitleGerman:ADDITIVE ZUR ÖLRÜCKGEWINNUNG MITTELS DAMPFEINSPRITZUNG[2021/35]
English:ADDITIVES FOR STEAM-INJECTION OIL RECOVERY[2021/35]
French:ADDITIFS POUR LA RÉCUPÉRATION DE PÉTROLE PAR INJECTION DE VAPEUR[2021/35]
Entry into regional phase22.04.2021National basic fee paid 
22.04.2021Designation fee(s) paid 
22.04.2021Examination fee paid 
Examination procedure22.04.2021Examination requested  [2021/35]
22.04.2021Date on which the examining division has become responsible
29.11.2021Amendment by applicant (claims and/or description)
22.07.2022Communication of intention to grant the patent
02.12.2022Application deemed to be withdrawn, date of legal effect  [2023/19]
22.12.2022Despatch of communication that the application is deemed to be withdrawn, reason: fee for grant / fee for printing not paid in time  [2023/19]
Fees paidRenewal fee
29.09.2021Renewal fee patent year 03
Penalty fee
Additional fee for renewal fee
31.10.202204   M06   Not yet paid
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Cited inInternational search[A]WO2009108423  (BAKER HUGHES INC [US]) [A] 1-15 * the whole document *;
 [A]WO2014099466  (DOW GLOBAL TECHNOLOGIES LLC [US]) [A] 1-15 * the whole document *;
 [A]WO2014160563  (DOW GLOBAL TECHNOLOGIES LLC [US]) [A] 1-15* the whole document *;
 [A]WO2015143034  (DOW GLOBAL TECHNOLOGIES LLC [US]) [A] 1-15 * the whole document *
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.