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Extract from the Register of European Patents

EP About this file: EP3994002

EP3994002 - MULTI-ZONE SILICON NITRIDE WAFER HEATER ASSEMBLY HAVING CORROSION PROTECTIVE LAYER, AND METHODS OF MAKING AND USING THE SAME [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  08.04.2022
Database last updated on 24.08.2024
FormerThe international publication has been made
Status updated on  15.01.2021
Most recent event   Tooltip12.06.2024New entry: Renewal fee paid 
Applicant(s)For all designated states
Coorstek Inc.
14143 Denver West Parkway
Suite 400
Golden, CO 80401 / US
[2022/19]
Inventor(s)01 / DIVAKAR, Ramesh
17457 W. 78th Drive
Arvada, Colorado 80007 / US
02 / SIMPSON, Matthew
26247 Bolton Lane
Evergreen, Colorado 80439 / US
03 / FILER, Alan
2123 Pineywoods St.
Mead, Colorado 80542 / US
 [2022/19]
Representative(s)Potter Clarkson
Chapel Quarter
Mount Street
Nottingham NG1 6HQ / GB
[N/P]
Former [2022/19]Potter Clarkson
The Belgrave Centre
Talbot Street
Nottingham NG1 5GG / GB
Application number, filing date20834616.301.07.2020
[2022/19]
WO2020US40532
Priority number, dateUS201962869388P01.07.2019         Original published format: US 201962869388 P
US201962908441P30.09.2019         Original published format: US 201962908441 P
[2022/19]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021003292
Date:07.01.2021
Language:EN
[2021/01]
Type: A1 Application with search report 
No.:EP3994002
Date:11.05.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 07.01.2021 takes the place of the publication of the European patent application.
[2022/19]
Search report(s)International search report - published on:US07.01.2021
(Supplementary) European search report - dispatched on:EP28.06.2023
ClassificationIPC:B32B18/00, H05B3/74
[2022/19]
CPC:
F27D5/0037 (EP,US); H05B3/143 (EP,KR); H01L21/67103 (EP,KR,US);
B32B18/00 (EP); C04B35/584 (US); C04B35/6261 (EP,KR);
C04B35/6264 (EP,KR); C04B35/6303 (US); C04B35/634 (US);
C04B37/001 (EP,KR); C04B41/009 (US); C04B41/4539 (US);
C04B41/5024 (US); C04B41/87 (US); H01L21/68757 (EP);
H05B3/12 (US); H05B3/283 (EP,KR,US); C04B2235/3224 (EP,KR,US);
C04B2235/3225 (EP,KR); C04B2235/3418 (EP,KR,US); C04B2235/3427 (EP,KR);
C04B2235/3847 (EP,KR); C04B2235/3873 (KR,US); C04B2235/3891 (EP,KR,US);
C04B2235/6025 (EP,KR,US); C04B2235/604 (EP,KR); C04B2235/656 (US);
C04B2235/658 (US); C04B2235/661 (US); C04B2235/76 (EP,KR);
C04B2237/341 (EP,KR); C04B2237/368 (EP); C04B2237/704 (EP,KR);
H05B2203/037 (KR,US) (-)
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 [2022/19]
TitleGerman:MEHRZONEN-SILIZIUMNITRID-WAFERHEIZUNGSANORDNUNG MIT KORROSIONSSCHUTZSCHICHT UND VERFAHREN ZU IHRER HERSTELLUNG UND VERWENDUNG DAVON[2022/19]
English:MULTI-ZONE SILICON NITRIDE WAFER HEATER ASSEMBLY HAVING CORROSION PROTECTIVE LAYER, AND METHODS OF MAKING AND USING THE SAME[2022/19]
French:ENSEMBLE DE CHAUFFAGE DE TRANCHE AU NITRURE DE SILICIUM MULTIZONE AYANT UNE COUCHE DE PROTECTION CONTRE LA CORROSION, ET PROCÉDÉS DE FABRICATION ET D'UTILISATION DE CELUI-CI[2022/19]
Entry into regional phase30.12.2021National basic fee paid 
30.12.2021Search fee paid 
30.12.2021Designation fee(s) paid 
30.12.2021Examination fee paid 
Examination procedure30.12.2021Examination requested  [2022/19]
12.01.2024Amendment by applicant (claims and/or description)
12.01.2024Date on which the examining division has become responsible
Fees paidRenewal fee
15.06.2022Renewal fee patent year 03
14.06.2023Renewal fee patent year 04
12.06.2024Renewal fee patent year 05
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Documents cited:Search[XI]EP0929205  (NGK INSULATORS LTD [JP]) [X] 8 * paragraphs [0055] , [0054]; figures 1-5 * [I] 9-15;
 [A]US2003138641  (FUKUDOME TAKERO [JP], et al) [A] 1-15 * the whole document *;
 [Y]US2016024962  (LUTHRA KRISHAN LAL [US]) [Y] 1-7 * paragraphs [0007] , [0014] , [0061]; figures 1-15 *;
 [Y]US2017140902  (SIMPSON MATTHEW [US], et al) [Y] 1-7 * paragraphs [0008] - [0010] - [0130]; figures 1-4 *;
 [A]WO2018093414  (COORSTEK INC [US]) [A] 1-15* the whole document *
International search[XY]US2001006172  (KATSUDA YUJI [JP], et al) [X] 25-30, 37 * entire document * [Y] 31-36, 38, 39;
 [Y]US2002098391  (TANAKA KOICHI [JP], et al) [Y] 1-6, 8-23, 31-36, 38, 39 * entire document *;
 [Y]US2002125239  (CHEN STEVEN AIHUA [US], et al) [Y] 1-6, 8-23 * entire document *;
 [A]US2016108510  (KIRBY GLEN HAROLD [US], et al) [A] 1-39* entire document *;
 [Y]  - SMEACETTO et al., "Protective coatings for carbon bonded carbon fibre composites", Ceramics International, (20080000), vol. 34, doi:10.1016/j.ceramint.2007.03.012, pages 1297 - 1301, XP022666997 [Y] 3,9

DOI:   http://dx.doi.org/10.1016/j.ceramint.2007.03.012
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.