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Extract from the Register of European Patents

EP About this file: EP3680485

EP3680485 - SCREW COMPRESSOR [Right-click to bookmark this link]
StatusExamination is in progress
Status updated on  18.05.2023
Database last updated on 06.07.2024
FormerRequest for examination was made
Status updated on  12.06.2020
FormerThe international publication has been made
Status updated on  09.03.2019
Most recent event   Tooltip17.11.2023New entry: Reply to examination report 
Applicant(s)For all designated states
Hitachi Industrial Equipment Systems Co., Ltd.
3, Kandaneribei-cho Chiyoda-ku
Tokyo 101-0022 / JP
[2020/29]
Inventor(s)01 / CHIBA, Kotaro
c/o HITACHI, Ltd.
6-6 Marunouchi 1-chome
Chiyoda-ku
Tokyo 100-8280 / JP
02 / TAKANO, Masahiko
c/o HITACHI INDUSTRIAL
EQUIPMENT SYSTEMS Co., Ltd.
3 Kanda Neribei-cho
Chiyoda-ku
Tokyo 101-0022 / JP
03 / YORIKANE, Shigeyuki
c/o HITACHI INDUSTRIAL
EQUIPMENT SYSTEMS Co., Ltd.
3 Kanda Neribei-cho
Chiyoda-ku
Tokyo 101-0022 / JP
04 / MORITA, Kenji
c/o HITACHI INDUSTRIAL
EQUIPMENT SYSTEMS Co., Ltd.
3 Kanda Neribei-cho
Chiyoda-ku
Tokyo 101-0022 / JP
05 / TAKEUCHI, Yoshitaka
c/o HITACHI INDUSTRIAL
EQUIPMENT SYSTEMS Co., Ltd.
3 Kanda Neribei-cho
Chiyoda-ku
Tokyo 101-0022 / JP
06 / KANADA, Minako
c/o HITACHI, Ltd.
6-6 Marunouchi 1-chome
Chiyoda-ku
Tokyo 100-8280 / JP
 [2020/29]
Representative(s)MERH-IP Matias Erny Reichl Hoffmann Patentanwälte PartG mbB
Paul-Heyse-Strasse 29
80336 München / DE
[2020/29]
Application number, filing date18851421.006.08.2018
[2020/29]
WO2018JP29337
Priority number, dateJP2017016913804.09.2017         Original published format: JP 2017169138
[2020/29]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2019044390
Date:07.03.2019
Language:JA
[2019/10]
Type: A1 Application with search report 
No.:EP3680485
Date:15.07.2020
Language:EN
[2020/29]
Search report(s)International search report - published on:JP07.03.2019
(Supplementary) European search report - dispatched on:EP25.11.2020
ClassificationIPC:F04C18/16, F04C29/02, F04C29/04, F04C29/00
[2020/52]
CPC:
F04C29/042 (EP,US); F04C18/16 (EP,US); F04C29/0007 (EP,US);
F04C29/02 (EP,US); F04C29/028 (EP,US); F04C29/04 (EP);
F04C2240/20 (US); F04C2240/30 (US); F04C2240/50 (US) (-)
Former IPC [2020/29]F04C18/16, F04C29/02, F04C29/04
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 [2020/29]
TitleGerman:SCHRAUBENVERDICHTER[2020/29]
English:SCREW COMPRESSOR[2020/29]
French:COMPRESSEUR À VIS[2020/29]
Entry into regional phase28.02.2020Translation filed 
06.04.2020National basic fee paid 
06.04.2020Search fee paid 
06.04.2020Designation fee(s) paid 
06.04.2020Examination fee paid 
Examination procedure06.04.2020Examination requested  [2020/29]
24.06.2021Amendment by applicant (claims and/or description)
28.09.2022Observations by third parties
17.05.2023Despatch of a communication from the examining division (Time limit: M06)
15.11.2023Reply to a communication from the examining division
Fees paidRenewal fee
31.08.2020Renewal fee patent year 03
31.08.2021Renewal fee patent year 04
31.08.2022Renewal fee patent year 05
31.08.2023Renewal fee patent year 06
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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.
Documents cited:Search[Y]JPS4519671B  (SVENSKA ROTOR MASKINER AB) [Y] 1-7 * abstract * * figures 1,2 *;
 [Y]DE2720214  (HITACHI LTD) [Y] 1-7 * figures 3-7 * * page 9 - page 10 *;
 [A]EP0389036  (GRASS AIR HOLDING BV [NL]) [A] 1-7 * figures 1,2 *;
 [A]  - DEIPENWISCH R. ET AL, "Oil as a design parameter in screw-type compressors oil distribution and power losses caused by oil in the working chamber of a screw-type compressor", INTERNATIONAL CONFERENCE ON COMPRESSORS AND THEIR SYSTEMS, (19990913), pages 49 - 58, XP055370390 [A] 1,2 * page 51 *
 [A]  - Heinz-Bernhard Harling, "Geometrie des untersuches Schraubenkompressors", Untersuchungen zur ?lverteilung in Schraubenkompressoren mit Schmiermitteleinspritzung, Reihe 1: Konstruktionstechnik/ Maschinenelemente, D?sseldorf, FORTSCHRITTE-BERICHTE VDI, (19940101), pages 7 - 11, XP055370386 [A] 1,2 * page 10 *
International search[XYA]JPS4519671B  [X] 2, 7 * , 6 * [Y] 1, 3, 6 [A] 4-5;
 [A]JPS588288  (HOKUETSU KOGYO CO) [A] 1-7 * , , *;
 [A]US5653585  (FRESCO ANTHONY N [US]) [A] 1-7* , *;
 [YA]JP2003184768  (HITACHI LTD) [Y] 1, 3, 6 * , * [A] 2, 4-5, 7;
 [A]JP2015078623  (KOBE STEEL LTD) [A] 1-7 * , 1 *
by applicantJP2003184768
otherEP3134649
 JP2017067011
    - Methode zur stochastischen Optimierung von Schraubenrotorprofilen, Dortmund, (2003), XP055622874
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.