(19)
(11) EP 3 719 248 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
22.03.2023 Bulletin 2023/12

(45) Mention of the grant of the patent:
08.02.2023 Bulletin 2023/06

(21) Application number: 19166745.0

(22) Date of filing: 02.04.2019
(51) International Patent Classification (IPC): 
F03B 13/18(2006.01)
E21B 19/09(2006.01)
 E21B 19/00(2006.01)
F16F 9/53(2006.01)
(52) Cooperative Patent Classification (CPC):
E21B 19/006; E21B 19/09; F16F 9/535; F05B 2210/10; F03B 13/1855; F05B 2220/707; F05B 2240/90; Y02E 10/30

(54)

SYSTEM AND METHOD FOR IMPROVED HEAVE COMPENSATION

SYSTEM UND VERFAHREN ZUR VERBESSERTEN TAUCHBEWEGUNGSKOMPENSATION

SYSTÈME ET PROCÉDÉ PERMETTANT D'AMÉLIORER LA COMPENSATION DU TANGAGE

(84) Designated Contracting States:
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

(43) Date of publication of application:
07.10.2020 Bulletin 2020/41

(73) Proprietor: Grant Prideco, Inc.
Houston, TX 77036 (US)

(72) Inventors:
  • ANKARGREN, David Bengt Johan
    75471 Uppsala (SE)
  • GU, Peter
    4610 Kristiansand S (NO)

(74) Representative: Håmsø Patentbyrå AS 
P.O. Box 171
4301 Sandnes
4301 Sandnes (NO)


(56) References cited: : 
WO-A1-2016/089217
GB-A- 2 503 062
US-B2- 6 740 125
 CN-A- 105 366 006
US-A1- 2018 306 267
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).