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Extract from the Register of European Patents

EP About this file: EP3921383

EP3921383 - PHASE CHANGE MATERIALS (PCMS) WITH SOLID TO SOLID TRANSITIONS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  17.11.2023
Database last updated on 22.08.2024
FormerThe patent has been granted
Status updated on  09.12.2022
FormerGrant of patent is intended
Status updated on  24.07.2022
FormerRequest for examination was made
Status updated on  12.11.2021
FormerThe international publication has been made
Status updated on  14.08.2020
Formerunknown
Status updated on  28.02.2020
Most recent event   Tooltip09.02.2024Lapse of the patent in a contracting state
New state(s): SI		published on 13.03.2024  [2024/11]
Applicant(s)For all designated states
Sunamp Limited
1 Satellite Park
Macmerry
East Lothian EH33 1RY / GB
[2021/50]
Inventor(s)01 / BISSELL, Andrew John
c/o Sunamp Limited
Unit 1, Satellite Park Macmerry, East Lothian
Edinburgh EH33 1RY / GB
02 / OLIVER, David
c/o Sunamp Limited
Unit 1, Satellite Park Macmerry, East Lothian
Edinburgh EH33 1RY / GB
03 / PULHAM, Colin Richard
c/o Sunamp Limited
Unit 1, Satellite Park Macmerry, East Lothian
Edinburgh EH33 1RY / GB
04 / CLARK, Rowan
c/o Sunamp Limited
Unit 1, Satellite Park Macmerry, East Lothian
Edinburgh EH33 1RY / GB
05 / LOGAN, Hannah
c/o Sunamp Limited
Unit 1, Satellite Park Macmerry, East Lothian
Edinburgh EH33 1RY / GB
 [2023/02]
Former [2021/50]01 / BISSELL, Andrew John
Edinburgh EH33 1RY / GB
02 / OLIVER, David
Edinburgh EH33 1RY / GB
03 / PULHAM, Colin Richard
Edinburgh EH33 1RY / GB
04 / CLARK, Rowan
Edinburgh EH33 1RY / GB
05 / LOGAN, Hannah
Edinburgh EH33 1RY / GB
Representative(s)HGF
HGF Limited
1 City Walk
Leeds LS11 9DX / GB
[2023/02]
Former [2021/50]HGF
1 City Walk
Leeds LS11 9DX / GB
Application number, filing date20705503.910.02.2020
[2021/50]
WO2020GB50299
Priority number, dateGB2019000176108.02.2019         Original published format: GB 201901761
[2021/50]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020161507
Date:13.08.2020
Language:EN
[2020/33]
Type: A1 Application with search report 
No.:EP3921383
Date:15.12.2021
Language:EN
The application published by WIPO in one of the EPO official languages on 13.08.2020 takes the place of the publication of the European patent application.
[2021/50]
Type: B1 Patent specification 
No.:EP3921383
Date:11.01.2023
Language:EN
[2023/02]
Search report(s)International search report - published on:EP13.08.2020
ClassificationIPC:C09K5/14, F28D20/02
[2022/31]
CPC:
C09K5/14 (EP,KR,US); F28D20/0034 (US); F28D20/021 (EP,KR);
Y02E60/14 (EP)
Former IPC [2021/50]C09K5/14
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 [2021/50]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:PHASENWECHSELMATERIALIEN (PCM) MIT FEST-ZU-FEST-ÜBERGÄNGEN[2021/50]
English:PHASE CHANGE MATERIALS (PCMS) WITH SOLID TO SOLID TRANSITIONS[2021/50]
French:MATÉRIAUX À CHANGEMENT DE PHASE (PCM) À TRANSITIONS SOLIDE À SOLIDE[2021/50]
Entry into regional phase18.08.2021National basic fee paid 
18.08.2021Designation fee(s) paid 
18.08.2021Examination fee paid 
Examination procedure08.10.2020Request for preliminary examination filed
International Preliminary Examining Authority: EP
18.08.2021Examination requested  [2021/50]
18.08.2021Date on which the examining division has become responsible
22.12.2021Amendment by applicant (claims and/or description)
25.07.2022Communication of intention to grant the patent
01.12.2022Fee for grant paid
01.12.2022Fee for publishing/printing paid
01.12.2022Receipt of the translation of the claim(s)
Opposition(s)12.10.2023No opposition filed within time limit [2023/51]
Fees paidRenewal fee
07.01.2022Renewal fee patent year 03
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  TooltipAT11.01.2023
CZ11.01.2023
EE11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
MC11.01.2023
RO11.01.2023
RS11.01.2023
SI11.01.2023
SK11.01.2023
SM11.01.2023
LU10.02.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
[2024/11]
Former [2023/50]AT11.01.2023
CZ11.01.2023
EE11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
MC11.01.2023
RO11.01.2023
RS11.01.2023
SK11.01.2023
SM11.01.2023
LU10.02.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/49]AT11.01.2023
CZ11.01.2023
EE11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
MC11.01.2023
RO11.01.2023
RS11.01.2023
SM11.01.2023
LU10.02.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/48]AT11.01.2023
EE11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
MC11.01.2023
RS11.01.2023
SM11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/46]AT11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
RS11.01.2023
SM11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/39]AT11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
RS11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/37]AT11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
RS11.01.2023
NO11.04.2023
GR12.04.2023
PT11.05.2023
Former [2023/36]AT11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
RS11.01.2023
NO11.04.2023
PT11.05.2023
Former [2023/35]AT11.01.2023
HR11.01.2023
LT11.01.2023
RS11.01.2023
NO11.04.2023
PT11.05.2023
Former [2023/34]LT11.01.2023
RS11.01.2023
PT11.05.2023
Former [2023/33]LT11.01.2023
Cited inInternational search[XI]US2002172634  (ANGAIAH SUBRAMANIAN [IN], et al) [X] 1-6,10-13,15-23,26 * claim 1 * [I] 7-9,14,24,25,27-34;
 [XI]US2018265364  (ZIMMERMAN CRAIG [US], et al) [X] 1-13,15-26,29-31,33,34 * figure 2; examples 1-20; claims 1-37 * [I] 14,27,28,32;
 [XI]US2018320987  (DA SILVA ALEXANDRE K [US], et al) [X] 1-7,10-13,15-26,29-31 * paragraph [0055]; claims 19-20 * * paragraph [0099] * * paragraph [0123] * * paragraph [0162] * [I] 8,9,14,27,28,32-34;
 [XI]  - PETROV G S ET AL, "Determination of heat capacity and enthalpies of phase transitions of ammonium, sodium and potassium tetrafluoroborates", THERMOCHIMICA ACTA, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 87, doi:10.1016/0040-6031(85)85362-4, ISSN 0040-6031, (19850515), pages 381 - 383, (19850515), XP026568610 [X] 1-7,10-13,15-23,26 * abstract * [I] 8,9,14,24,25,27-34

DOI:   http://dx.doi.org/10.1016/0040-6031(85)85362-4
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.