(19)
(11) EP 3 990 780 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:
01.05.2024 Bulletin 2024/18

(45) Mention of the grant of the patent:
27.03.2024 Bulletin 2024/13

(21) Application number: 20735163.6

(22) Date of filing: 26.06.2020
(51) International Patent Classification (IPC): 
F03G 3/00(2006.01)
(52) Cooperative Patent Classification (CPC):
F03G 3/094
(86) International application number:
PCT/EP2020/068043
(87) International publication number:
WO 2020/260596 (30.12.2020 Gazette 2020/53)

(54)

GRAVITY-BASED ENERGY STORAGE SYSTEM

SCHWERKRAFTBASIERTES ENERGIESPEICHERSYSTEM

SYSTÈME D'ACCUMULATION D'ÉNERGIE BASÉE SUR LA GRAVITÉ

(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 28.06.2019 GB 201909349

(43) Date of publication of application:
04.05.2022 Bulletin 2022/18

(73) Proprietor: Gravitricity Limited
Edinburgh EH6 4DD (GB)

(72) Inventors:
  • FRANKLIN, Miles
    Yealmpton Devon PL8 2EH (GB)
  • FRAENKEL, Peter
    London W13 8NQ (GB)

(74) Representative: Ellis, Michael James 
Ellis IP Ltd 53/4 George Street
Edinburgh EH2 2HT
Edinburgh EH2 2HT (GB)


(56) References cited: : 
WO-A1-2013/005056
JP-A- S5 818 572
 DE-A1- 10 037 678
   
       
    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).