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Balance Piston For Multiphase Fluid Processing - EP2976505

The patent EP2976505 was granted to Onesubsea UK on Jun 18, 2025. The application was originally filed on Mar 18, 2014 under application number EP14768808A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP2976505

ONESUBSEA UK
Application Number
EP14768808A
Filing Date
Mar 18, 2014
Status
Patent Maintained As Amended
May 16, 2025
Grant Date
Jun 18, 2025
External Links
Slate, Register, Google Patents

Patent Summary

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SULZER MANAGEMENTMay 10, 2022IPS IRSCHADMISSIBLE

Patent Citations (17) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication NumberPublication Link
DESCRIPTIONEP0570455
INTERNATIONAL-SEARCH-REPORTDE1528717
INTERNATIONAL-SEARCH-REPORTUS2010284829
INTERNATIONAL-SEARCH-REPORTUS2012183388
INTERNATIONAL-SEARCH-REPORTUS2012321438
INTERNATIONAL-SEARCH-REPORTWO2009135802
OPPOSITIONEP0570455
OPPOSITIONJPH0559901
OPPOSITIONUS815281
OPPOSITIONWO2009135802
OPPOSITIONWO2009137319
OPPOSITIONWO2010129749
OPPOSITIONWO2011078680
OPPOSITIONWO2012121605
SEARCHEP0570455
SEARCHWO2009135802
SEARCHWO2011078680

Non-Patent Literature (NPL) Citations (10) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
OPPOSITION- Anonymous, "MPP High Performance Multi-Phase Pump", sulzer, (20040601), XP055925015-
OPPOSITION- Anonymous, " Subsea Pumping ", The Heart of Your Process, (20120101), XP055924991-
OPPOSITION- Anonymous, "The Heart of Your Process Your Partner for Subsea Pumping", Sulzer Pumps, (20120401), XP055925004-
OPPOSITION- B. GERMAINE, "Practical Lateral Rotordynamics for Centrifugal Pumps", Sulzer Pumps, (20071100), XP007919179-
OPPOSITION- Bibet Pierre-Jean, Lumpkin Victor A, Knut Harald, Klepsvik, "DESIGN AND VERIFICATION TESTING OF NEW BALANCE PISTON FOR HIGH BOOST MULTIPHASE PUMPS", Proceedings of the Twenty-Ninth International Pump Users Symposium, (20131001), XP055924969-
OPPOSITION- Bibet Pierre-Jean, Quoix Bernard, Grimstad Haakon, "HYBRID PUMP— A NEW TYPE OF PUMP FOR THE PAZFLOR DEEP SEA PROJECT INTRODUCTION", PROCEEDINGS OF THE TWENTY-FIFTH INTERNATIONAL PUMP USERS SYMPOSIUM, (20090101), XP055925021-
OPPOSITION- J. F. Gülich, "9.2. Axialschub ", Kreiselpumpen - Ein Handbuch für Entwicklung, Anlagenplanung und Betrieb, (19990101), pages 417 - 419, XP055924962-
OPPOSITION- J. F. Gülich, "hydraulic forces ", Centrifugal Pumps, (20080101), pages 516 - 752, XP055924967-
OPPOSITION- A. FREI, "The relative influence of the different zones with fluid - structure interaction on the dynamic behaviour of hydraulic machines", La Houille Blanche, (19980000), XP055925027
OPPOSITION- Haheim Svein, Gaillard Xavier, "A Simplified Subsea Separation and Pumping System", SPE Annual Technical Conference and Exhibition held in New Orleans, Society of Petroleum Engineers, (20090101), doi:10.2118/124560-MS, pages 4 - 7, XP055924989

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