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Extract from the Register of European Patents

EP About this file: EP4025996

EP4025996 - DEFERRING CACHE STATE UPDATES IN A NON-SPECULATIVE CACHE MEMORY IN A PROCESSOR-BASED SYSTEM IN RESPONSE TO A SPECULATIVE DATA REQUEST UNTIL THE SPECULATIVE DATA REQUEST BECOMES NON-SPECULATIVE [Right-click to bookmark this link]
StatusThe patent has been granted
Status updated on  24.11.2023
Database last updated on 14.06.2024
FormerGrant of patent is intended
Status updated on  03.08.2023
FormerRequest for examination was made
Status updated on  10.06.2022
FormerThe international publication has been made
Status updated on  12.03.2021
Formerunknown
Status updated on  11.07.2020
Most recent event   Tooltip24.05.2024Lapse of the patent in a contracting state
New state(s): ES, HR, LV, NO, RS, SE
published on 26.06.2024 [2024/26]
Applicant(s)For all designated states
Microsoft Technology Licensing, LLC
One Microsoft Way
Redmond, WA 98052-6399 / US
[2022/28]
Inventor(s)01 / KOTHINTI NARESH, Vignyan Reddy
Microsoft Technology Licensing, LLC
One Microsoft Way
Redmond, Washington 98052-6399 / US
02 / PERAIS, Arthur
Microsoft Technology Licensing, LLC
One Microsoft Way
Redmond, Washington 98052-6399 / US
03 / AL SHEIKH, Rami Mohammad
Microsoft Technology Licensing, LLC
One Microsoft Way
Redmond, Washington 98052-6399 / US
04 / PRIYADARSHI, Shivam
Microsoft Technology Licensing, LLC
One Microsoft Way
Redmond, Washington 98052-6399 / US
 [2023/52]
Former [2022/28]01 / KOTHINTI NARESH, Vignyan Reddy
Microsoft Technology Licensing, LLC One Microsoft
Way
Redmond, Washington 98052-6399 / US
02 / PERAIS, Arthur
Microsoft Technology Licensing, LLC One Microsoft
Way
Redmond, Washington 98052-6399 / US
03 / AL SHEIKH, Rami Mohammad
Microsoft Technology Licensing, LLC One Microsoft
Way
Redmond, Washington 98052-6399 / US
04 / PRIYADARSHI, Shivam
Microsoft Technology Licensing, LLC One Microsoft
Way
Redmond, Washington 98052-6399 / US
Representative(s)CMS Cameron McKenna Nabarro Olswang LLP
Cannon Place
78 Cannon Street
London EC4N 6AF / GB
[2022/28]
Application number, filing date20735817.717.06.2020
[2022/28]
WO2020US37990
Priority number, dateUS20191655884303.09.2019         Original published format: US201916558843
[2022/28]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021045814
Date:11.03.2021
Language:EN
[2021/10]
Type: A1 Application with search report 
No.:EP4025996
Date:13.07.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 11.03.2021 takes the place of the publication of the European patent application.
[2022/28]
Type: B1 Patent specification 
No.:EP4025996
Date:27.12.2023
Language:EN
[2023/52]
Search report(s)International search report - published on:EP11.03.2021
ClassificationIPC:G06F9/30, G06F12/0802, G06F12/0862
[2022/28]
CPC:
G06F9/30043 (EP,IL,KR,US); G06F12/12 (IL,KR,US); G06F12/0837 (IL,KR,US);
G06F12/084 (IL,KR,US); G06F12/0862 (EP,IL,KR); G06F9/544 (IL,KR,US);
G06F2212/6022 (EP,IL,KR) (-)
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 [2022/28]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:ABLEITEN VON CACHE-ZUSTANDSAKTUALISIERUNGEN IN EINEM NICHT-SPEKULATIVEN CACHE-SPEICHER IN EINEM PROZESSORBASIERTEN SYSTEM ALS ANTWORT AUF EINE SPEKULATIVE DATENANFRAGE, BIS DIE SPEKULATIVE DATENANFRAGE NICHT-SPEKULATIV WIRD[2022/28]
English:DEFERRING CACHE STATE UPDATES IN A NON-SPECULATIVE CACHE MEMORY IN A PROCESSOR-BASED SYSTEM IN RESPONSE TO A SPECULATIVE DATA REQUEST UNTIL THE SPECULATIVE DATA REQUEST BECOMES NON-SPECULATIVE[2022/28]
French:REPORT DE MISES À JOUR D'ÉTAT DE CACHE DANS UNE MÉMOIRE CACHE NON SPÉCULATIVE DANS UN SYSTÈME BASÉ SUR UN PROCESSEUR EN RÉPONSE À UNE DEMANDE DE DONNÉES SPÉCULATIVE JUSQU'À CE QUE LA DEMANDE DE DONNÉES SPÉCULATIVE DEVIENNE NON SPÉCULATIVE[2022/28]
Entry into regional phase24.02.2022National basic fee paid 
24.02.2022Designation fee(s) paid 
24.02.2022Examination fee paid 
Examination procedure24.02.2022Examination requested  [2022/28]
24.02.2022Date on which the examining division has become responsible
13.05.2022Amendment by applicant (claims and/or description)
04.08.2023Communication of intention to grant the patent
21.11.2023Fee for grant paid
21.11.2023Fee for publishing/printing paid
21.11.2023Receipt of the translation of the claim(s)
Fees paidRenewal fee
13.05.2022Renewal fee patent year 03
31.03.2023Renewal fee patent year 04
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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  TooltipES27.12.2023
FI27.12.2023
HR27.12.2023
LT27.12.2023
LV27.12.2023
RS27.12.2023
SE27.12.2023
BG27.03.2024
NO27.03.2024
GR28.03.2024
[2024/26]
Former [2024/21]FI27.12.2023
LT27.12.2023
BG27.03.2024
GR28.03.2024
Former [2024/20]GR28.03.2024
Cited inInternational search[XAI]US6321328  (KARP ALAN H [US], et al) [X] 1,2,5-9,13-15 * abstract * * column 3, line 6 - column 7, line 42 * * figures 1-4 * [A] 4,10,11 [I] 3,12;
 [A]US8943273  (JAMIL SUJAT [US], et al) [A] 1-15 * abstract * * column 3, line 21 - column 5, line 5 ** figures 1-7b *;
 [A]  - LI PEINAN ET AL, "Conditional Speculation: An Effective Approach to Safeguard Out-of-Order Execution Against Spectre Attacks", 2019 IEEE INTERNATIONAL SYMPOSIUM ON HIGH PERFORMANCE COMPUTER ARCHITECTURE (HPCA), IEEE, (20190216), doi:10.1109/HPCA.2019.00043, pages 264 - 276, XP033532531 [A] 1-15 * abstract * * section V, section VII-A *

DOI:   http://dx.doi.org/10.1109/HPCA.2019.00043
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.