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Extract from the Register of European Patents

EP About this file: EP4041550

EP4041550 - COMPUTER IMPLEMENTED LIGHTWEIGHT DESIGN METHOD [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  31.10.2025
Database last updated on 28.03.2026
FormerThe patent has been granted
Status updated on  22.11.2024
FormerGrant of patent is intended
Status updated on  18.07.2024
FormerRequest for examination was made
Status updated on  15.07.2022
FormerThe international publication has been made
Status updated on  17.04.2021
Formerunknown
Status updated on  23.10.2020
Most recent event   Tooltip31.10.2025No opposition filed within time limitpublished on 03.12.2025  [2025/49]
Applicant(s)For all designated states
Politecnico di Milano
Piazza Leonardo da Vinci 32
20133 Milano / IT
[2022/33]
Inventor(s)01 / BRUGGI, Matteo
c/o Politecnico Di Milano
Piazza Leonardo da Vinci, 32
20133 Milano (MI) / IT
02 / PAOLETTI, Ingrid
c/o Politecnico Di Milano
Piazza Leonardo da Vinci, 32
20133 Milano (MI) / IT
 [2022/33]
Representative(s)Grana, Daniele
BRUNACCI & PARTNERS S.r.l.
Via Pietro Giardini, 625
41125 Modena (MO) / IT
[2022/33]
Application number, filing date20790391.507.10.2020
[2022/33]
WO2020IB59416
Priority number, dateIT2019001853911.10.2019         Original published format: IT201900018539
[2022/33]
Filing languageIT
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021070080
Date:15.04.2021
Language:EN
[2021/15]
Type: A1 Application with search report 
No.:EP4041550
Date:17.08.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 15.04.2021 takes the place of the publication of the European patent application.
[2022/33]
Type: B1 Patent specification 
No.:EP4041550
Date:25.12.2024
Language:EN
[2024/52]
Search report(s)International search report - published on:EP15.04.2021
ClassificationIPC:B33Y50/00, G06F30/23, G06F30/17, G06F113/10, G06F111/06
[2022/33]
CPC:
B33Y50/00 (EP,US); G06F30/17 (EP,US); B29C64/386 (US);
G06F30/23 (EP,US); G06F2111/06 (EP); G06F2113/10 (EP,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 [2022/33]  
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:COMPUTERIMPLEMENTIERTES LEICHTBAUVERFAHREN[2022/33]
English:COMPUTER IMPLEMENTED LIGHTWEIGHT DESIGN METHOD[2022/33]
French:PROCÉDÉ DE CONCEPTION LÉGÈRE MIS EN OEUVRE PAR ORDINATEUR[2022/33]
Entry into regional phase28.03.2022National basic fee paid 
28.03.2022Designation fee(s) paid 
28.03.2022Examination fee paid 
Examination procedure28.03.2022Examination requested  [2022/33]
28.03.2022Date on which the examining division has become responsible
22.11.2022Amendment by applicant (claims and/or description)
19.07.2024Communication of intention to grant the patent
14.11.2024Fee for grant paid
14.11.2024Fee for publishing/printing paid
14.11.2024Receipt of the translation of the claim(s)
Opposition(s)26.09.2025No opposition filed within time limit [2025/49]
Fees paidRenewal fee
17.10.2022Renewal fee patent year 03
23.10.2023Renewal fee patent year 04
24.10.2024Renewal fee patent year 05
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  TooltipCZ25.12.2024
ES25.12.2024
HR25.12.2024
PL25.12.2024
SK25.12.2024
SM25.12.2024
NO25.03.2025
RS25.03.2025
GR26.03.2025
IS25.04.2025
[2025/36]
Former [2025/34]ES25.12.2024
HR25.12.2024
PL25.12.2024
SM25.12.2024
NO25.03.2025
RS25.03.2025
GR26.03.2025
IS25.04.2025
Former [2025/33]ES25.12.2024
HR25.12.2024
PL25.12.2024
SM25.12.2024
NO25.03.2025
RS25.03.2025
GR26.03.2025
Former [2025/32]HR25.12.2024
SM25.12.2024
NO25.03.2025
RS25.03.2025
GR26.03.2025
Former [2025/23]HR25.12.2024
NO25.03.2025
RS25.03.2025
GR26.03.2025
Former [2025/22]HR25.12.2024
NO25.03.2025
GR26.03.2025
Former [2025/21]HR25.12.2024
Documents cited:Search[Y] US2017239064  (CORDARO NICHOLAS MICHAEL et al.) [Y] 1-19 * abstract * * paragraph [0005] * * paragraph [0007] * * paragraph [0058] * * paragraph [0064] * * paragraph [0083] * * paragraph [0095] * * figures 7-15 *
 [A] EP3501458  (THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING / MCGILL UNIV et al.) [A] 1-19 * abstract * * paragraphs [0010] - [0012] * * paragraph [0022] - paragraph [0035] * * figures 1,2a,3,5,11,12 *
 [Y]   YINGJUN WANG ET AL: "Hip Implant Design With Three-Dimensional Porous Architecture of Optimized Graded Density", JOURNAL OF MECHANICAL DESIGN, vol. 140, no. 11, 7 September 2018 (2018-09-07), US, pages 1 - 13, XP055706403, ISSN: 1050-0472, DOI: 10.1115/1.4041208 [Y] 1-19 * abstract * * page 2, column 2 - page 7 * * page 19, column 2, paragraph 1 *

DOI:   http://dx.doi.org/10.1115/1.4041208
 [A]   YUEN-SHAN LEUNG ET AL: "Challenges and Status on Design and Computation for Emerging Additive Manufacturing Technologies", JOURNAL OF COMPUTING AND INFORMATION SCIENCE IN ENGINEERING, vol. 19, no. 2, 18 March 2019 (2019-03-18), US, XP055658891, ISSN: 1530-9827, DOI: 10.1115/1.4041913 [A] 1-19 * the whole document *

DOI:   http://dx.doi.org/10.1115/1.4041913
 [A]   ZONG HONGMING ET AL: "VCUT level set method for topology optimization of functionally graded cellular structures", COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, NORTH-HOLLAND, AMSTERDAM, NL, vol. 354, 31 May 2019 (2019-05-31), pages 487 - 505, XP085737828, ISSN: 0045-7825, [retrieved on 20190531], DOI: 10.1016/J.CMA.2019.05.029 [A] 1-19 * the whole document * * page 488, paragraph 3 * * page 488, paragraph 6 *

DOI:   http://dx.doi.org/10.1016/j.cma.2019.05.029
 [A]   NAZIR AAMER ET AL: "A state-of-the-art review on types, design, optimization, and additive manufacturing of cellular structures", THE INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, SPRINGER, LONDON, vol. 104, no. 9-12, 10 July 2019 (2019-07-10), pages 3489 - 3510, XP036922692, ISSN: 0268-3768, [retrieved on 20190710], DOI: 10.1007/S00170-019-04085-3 [A] 1-19 * the whole document *

DOI:   http://dx.doi.org/10.1007/s00170-019-04085-3
International search[Y] US2017239064  (CORDARO NICHOLAS MICHAEL et al.) [Y] 1-19 * abstract * * paragraph [0005] * * paragraph [0007] * * paragraph [0058] * * paragraph [0064] * * paragraph [0083] * * paragraph [0095] * * figures 7-15 *
 [A] EP3501458  (THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING / MCGILL UNIV et al.) [A] 1-19 * abstract * * paragraphs [0010] - [0012] * * paragraph [0022] - paragraph [0035] * * figures 1,2a,3,5,11,12 *
 [Y]   YINGJUN WANG ET AL: "Hip Implant Design With Three-Dimensional Porous Architecture of Optimized Graded Density", JOURNAL OF MECHANICAL DESIGN, vol. 140, no. 11, 7 September 2018 (2018-09-07), US, pages 1 - 13, XP055706403, ISSN: 1050-0472, DOI: 10.1115/1.4041208 [Y] 1-19 * abstract * * page 2, column 2 - page 7 * * page 19, column 2, paragraph 1 *

DOI:   http://dx.doi.org/10.1115/1.4041208
 [A]   YUEN-SHAN LEUNG ET AL: "Challenges and Status on Design and Computation for Emerging Additive Manufacturing Technologies", JOURNAL OF COMPUTING AND INFORMATION SCIENCE IN ENGINEERING, vol. 19, no. 2, 18 March 2019 (2019-03-18), US, XP055658891, ISSN: 1530-9827, DOI: 10.1115/1.4041913 [A] 1-19 * the whole document *

DOI:   http://dx.doi.org/10.1115/1.4041913
 [A]   ZONG HONGMING ET AL: "VCUT level set method for topology optimization of functionally graded cellular structures", COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, NORTH-HOLLAND, AMSTERDAM, NL, vol. 354, 31 May 2019 (2019-05-31), pages 487 - 505, XP085737828, ISSN: 0045-7825, [retrieved on 20190531], DOI: 10.1016/J.CMA.2019.05.029 [A] 1-19 * the whole document * * page 488, paragraph 3 * * page 488, paragraph 6 *

DOI:   http://dx.doi.org/10.1016/j.cma.2019.05.029
 [A]   NAZIR AAMER ET AL: "A state-of-the-art review on types, design, optimization, and additive manufacturing of cellular structures", THE INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, SPRINGER, LONDON, vol. 104, no. 9-12, 10 July 2019 (2019-07-10), pages 3489 - 3510, XP036922692, ISSN: 0268-3768, [retrieved on 20190710], DOI: 10.1007/S00170-019-04085-3 [A] 1-19 * the whole document *

DOI:   http://dx.doi.org/10.1007/s00170-019-04085-3
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.