blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

Italy joins the Federated Register

Click here for more information on the Federated Register.

2025-06-12

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register User Manual
European Patent Register – pocket guide
FAQ - European Patent Register
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP3708633

EP3708633 - METHOD FOR RECOVERY OF CRUDE OIL [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.01.2026
Database last updated on 11.04.2026
FormerThe patent has been granted
Status updated on  14.02.2025
FormerGrant of patent is intended
Status updated on  15.10.2024
FormerRequest for examination was made
Status updated on  12.03.2021
FormerThe application has been published
Status updated on  14.08.2020
Most recent event   Tooltip03.04.2026Lapse of the patent in a contracting state
New state(s): MC		published on 06.05.2026 [2026/19]
Applicant(s)For all designated states
Ecolab USA Inc.
1 Ecolab Place
St. Paul, MN 55102 / US
[2020/38]
Inventor(s)01 / SOMMESE, Anthony G.
25541 Seneca Drive
Wheaton, IL Illinois 60564 / US
02 / GILL, Jasbir S.
2219 Skylane Drive
Naperville, IL Illinois 60564 / US
03 / MILLER, Thomas M.
1815 West Illinois Avenue
Aurora, IL Illinois 60506 / US
04 / RODMAN, David
10 Baxter Street
Townsville, Queensland 4810 / AU
05 / BATTON, Carol B.
c/o Ecolab USA Inc.
1 Ecolab Place
Saint Paul, MN 55102 / US
06 / HOOTS, John E.
c/o Ecolab USA Inc.
1 Ecolab Place
Saint Paul, MN 55102 / US
07 / WEBERSKI, Michael Patrick Jr.
108 Terry Drive
Sugar Grove, IL Illinois 60554 / US
08 / GODFREY, Martin Ray
4766 London Lane
Eagan, MN Minnesota 55122 / US
 [2020/42]
Former [2020/40]01 / SOMMESE, Anthony G.
25541 Seneca Drive
Wheaton, IL Illinois 60564 / US
02 / GILL, Jasbir S.
2219 Skylane Drive
Naperville, IL Illinois 60564 / US
03 / MILLER, Thomas M.
1815 West Illinois Avenue
Aurora, IL Illinois 60506 / US
04 / RODMAN, David
10 Baxter Street
Townsville, Queensland 4810 / AU
05 / BATTON, Carol B.
c/o Ecolab USA Inc.
1 Ecolab Place
Saint Paul, MN 55102 / US
06 / HOOTS, John E.
2329 Hill Lane
Batavia, IL Illinois 60510 / US
07 / WEBERSKI, Michael Patrick Jr.
108 Terry Drive
Sugar Grove, IL Illinois 60554 / US
08 / GODFREY, Martin Ray
4766 London Lane
Eagan, MN Minnesota 55122 / US
Former [2020/38]01 / SOMMESE, Anthony G.
25541 Seneca Drive
Wheaton, IL Illinois 60564 / US
02 / GILL, Jasbir S.
2219 Skylane Drive
Naperville, IL Illinois 60564 / US
03 / MILLER, Thomas M.
1815 West Illinois Avenue
Aurora, IL Illinois 60506 / US
04 / RODMAN, David
10 Baxter Street
Townsville, Queensland 4810 / AU
05 / BATTON, Carol B.
7495 Rosehill Court
Yorkville, IL Illinois 60560 / US
06 / HOOTS, John E.
2329 Hill Lane
Batavia, IL Illinois 60510 / US
07 / WEBERSKI, Michael Patrick Jr.
108 Terry Drive
Sugar Grove, IL Illinois 60554 / US
08 / GODFREY, Martin Ray
4766 London Lane
Eagan, MN Minnesota 55122 / US
Representative(s)Godemeyer Blum Lenze Patentanwälte Partnerschaft mbB - werkpatent
An den Gärten 7
51491 Overath / DE
[2020/38]
Application number, filing date20172655.127.08.2015
[2020/38]
Priority number, dateUS201562206658P18.08.2015         Original published format: US 201562206658 P
US201562206669P18.08.2015         Original published format: US 201562206669 P
[2020/38]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP3708633
Date:16.09.2020
Language:EN
[2020/38]
Type: B1 Patent specification 
No.:EP3708633
Date:19.03.2025
Language:EN
[2025/12]
Search report(s)(Supplementary) European search report - dispatched on:EP08.06.2020
ClassificationIPC:C09K8/528
[2020/38]
CPC:
C09K8/528 (EP); C09K8/58 (EP); C09K8/72 (EP);
C09K2208/32 (EP)
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 [2021/15]  
Former [2020/38]AL,  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 
TitleGerman:METHODE ZUR ERDÖLGEWINNUNG[2020/38]
English:METHOD FOR RECOVERY OF CRUDE OIL[2020/38]
French:METHODE D'OBTENTION DE NAPHTE[2020/38]
Examination procedure10.03.2021Amendment by applicant (claims and/or description)
10.03.2021Examination requested  [2021/15]
10.03.2021Date on which the examining division has become responsible
16.10.2024Communication of intention to grant the patent
06.02.2025Fee for grant paid
06.02.2025Fee for publishing/printing paid
06.02.2025Receipt of the translation of the claim(s)
Parent application(s)   TooltipEP15836029.7  / EP3245270
Opposition(s)22.12.2025No opposition filed within time limit [2026/09]
Fees paidRenewal fee
03.08.2020Renewal fee patent year 03
03.08.2020Renewal fee patent year 04
03.08.2020Renewal fee patent year 05
03.08.2020Renewal fee patent year 06
13.08.2021Renewal fee patent year 07
18.07.2022Renewal fee patent year 08
05.07.2023Renewal fee patent year 09
04.07.2024Renewal fee patent year 10
Opt-out from the exclusive  Tooltip
competence of the Unified
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  TooltipCZ19.03.2025
ES19.03.2025
HR19.03.2025
MC19.03.2025
PL19.03.2025
SK19.03.2025
SM19.03.2025
NO19.06.2025
RS19.06.2025
GR20.06.2025
[2026/19]
Former [2025/49]CZ19.03.2025
ES19.03.2025
HR19.03.2025
PL19.03.2025
SK19.03.2025
SM19.03.2025
NO19.06.2025
RS19.06.2025
GR20.06.2025
Former [2025/48]CZ19.03.2025
ES19.03.2025
HR19.03.2025
PL19.03.2025
SM19.03.2025
NO19.06.2025
RS19.06.2025
GR20.06.2025
Former [2025/47]ES19.03.2025
HR19.03.2025
PL19.03.2025
SM19.03.2025
NO19.06.2025
RS19.06.2025
GR20.06.2025
Former [2025/46]ES19.03.2025
HR19.03.2025
SM19.03.2025
NO19.06.2025
RS19.06.2025
GR20.06.2025
Former [2025/35]HR19.03.2025
NO19.06.2025
RS19.06.2025
GR20.06.2025
Former [2025/34]HR19.03.2025
NO19.06.2025
RS19.06.2025
Former [2025/33]RS19.06.2025
Documents cited:Search[XI] WO2015069261  (HALLIBURTON ENERGY SERVICES INC et al.)
 [XI] US2009139723  (PIROLLI LAURENT et al.)
 [XI] WO2015088587  (HALLIBURTON ENERGY SERVICES INC et al.)
 [XI] WO2009061487  (VITECH INTERNATIONAL INC et al.) [X] 1,3-5,7-12,14,15 * paragraphs [0007] , [0039] - paragraph [0050]; claim - *[I] 2,6,13
by applicantUS8389453
 US8796195
   HEINS, W.: "Technical Advancements in SAGD Evaporative Produced Water Treatment", INTERNATIONAL WATER CONFERENCE IN SAN ANTONIO, 2008
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.