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METHOD FOR PRODUCING AN OPTICAL ELEMENT BY PROCESSING AN OPTICALLY ACTIVE MATERIAL, AND OPTICAL ELEMENT

Publication No. EP4476052

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App No. EP24708183

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Filed by Xolo GmbH

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Filed on 2024-02-27

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Issued/Published on 2026-01-14

Official EPO Register

Publication No. EP4476052 A1

Application No. EP24708183 Filed: 2024-02-27

Grant Date 2026-01-14 Mention of grant

Active Oppositions 1 Active EPO Oppositions

Patent Abstract / Summary

Patent abstract is being processed or was not provided in English by the publishing office.

IPC Classifications

B29C64/282, B29C64/106, B29C64/135, B29C64/268, B33Y10/00, B33Y30/00, B33Y80/00, B29D11/00 B29C64/282, B29C64/106, B29C64/135, B29C64/268, B33Y10/00, B33Y30/00, B33Y80/00

Priority Claims

DE 202310104907 Date: 2023-02-28

Designated Contracting States (39 EPC States)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Parties & Representation

Applicants

Xolo GmbH

Volmerstr. 9B, 12489 Berlin

Inventors (5)

RADZINSKI, Dirk

12489 Berlin

GARMSHAUSEN, Yves

12489 Berlin

HERDER, Martin

12489 Berlin

KÖNIG, Niklas

12489 Berlin

REUTER, Marcus

12489 Berlin

Representatives / Agents

Hafner & Kohl PartmbB

Schleiermacherstraße 25, 90491 Nürnberg

Lorenz Seidler Gossel Part. mbB

Widenmayerstr. 23, 80538 München

Key Procedural Dates

Request-For-Examination 2024-09-11

Mention Of Grant Published 2026-01-14

First-Examination-Report-Despatched 2025-10-23

Legal Status & Event History

Official European Patent Office legal and procedural status changes recorded for this file.

33 Events Recorded

Date	Code	Event Description	Auth
2024-09-07	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2024-03-08	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2024-11-15	PUAI	PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE	EP
2024-11-15	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2024-12-18	17P	REQUEST FOR EXAMINATION FILED	EP
2024-12-18	AK	DESIGNATED CONTRACTING STATES	EP
2025-10-29	RIC1	INFORMATION PROVIDED ON IPC CODE ASSIGNED BEFORE GRANT	EP
2025-10-23	GRAP	DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT	EP
2025-10-23	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-11-26	INTG	INTENTION TO GRANT ANNOUNCED	EP
2025-11-28	GRAS	GRANT FEE PAID	EP
2026-01-07	DAX	REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (DELETED)	EP
2026-01-07	DAV	REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (DELETED)	EP
2025-12-12	GRAA	(EXPECTED) GRANT	EP
2025-12-12	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2026-01-14	AK	DESIGNATED CONTRACTING STATES	EP
2026-01-14	REG	REFERENCE TO A NATIONAL CODE	EP
2026-01-22	REG	REFERENCE TO A NATIONAL CODE	EP
2026-02-25	U01	REQUEST FOR UNITARY EFFECT FILED	EP
2026-02-25	U07	UNITARY EFFECT REGISTERED	EP
2026-02-11	REG	REFERENCE TO A NATIONAL CODE	EP
2026-03-25	U20	RENEWAL FEE FOR THE EUROPEAN PATENT WITH UNITARY EFFECT PAID	EP
2026-04-14	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-07	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-08	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-09	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-10	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-14	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-17	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-18	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-10-06	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-10-13	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-10-16	PLBI	OPPOSITION FILED	EP

Patent & Non-Patent Citations

Cited documents and prior art referenced in search and examination reports.

20 Citations

Cited Patent Documents

WO2021247930

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WO2021089090

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US2022118705

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US2023041524

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US2015276987

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WO2023003819

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US2016167299

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US2020386977

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WO2023220462

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WO2024180086

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DE102023104907

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Non-Patent Scientific Literature (NPL)

- REGEHLY MARTIN; GARMSHAUSEN YVES; REUTER MARCUS; KöNIG NIKLAS F.; ISRAEL ERIC; KELLY DAMIEN P.; CHOU CHUN-YU; KOCH KLAAS; ASF: "Xolography for linear volumetric 3D printing", NATURE, vol. 588, no. 7839, 1 January 1900 (1900-01-01), pages 620 - 624, XP037320760, DOI: 10.1038/s41586-020-3029-7

- ANONYMOUS TOMASZ, EHRMANN GUIDO, EHRMANN ANDREA: "Optical elements from 3D printed polymers", E-POLYMERS, vol. 21, no. 1, 1 January 2021 (2021-01-01), DE , pages 549 - 565, XP093204464, ISSN: 1618-7229, DOI: 10.1515/epoly-2021-0061

- GEISLER EMMA, LECOMPÈRE MAXIME, SOPPERA OLIVIER: "3D printing of optical materials by processes based on photopolymerization: materials, technologies, and recent advances", PHOTONICS RESEARCH, vol. 10, no. 6, 1 June 2022 (2022-06-01), US , pages 1344 - 1360, XP093446510, ISSN: 2327-9125, DOI: 10.1364/prj.453338

- BRETT E. KELLY, BHATTACHARYA INDRASEN, HEIDARI HOSSEIN, SHUSTEFF MAXIM, SPADACCINI CHRISTOPHER M., TAYLOR HAYDEN K.: "Volumetric additive manufacturing via tomographic reconstruction", SCIENCE, 31 January 2019 (2019-01-31), US , XP055550929, ISSN: 0036-8075, DOI: 10.1126/science.aau7114

- JOSEPH TOOMBS; MANUEL LUITZ; CAITLYN COOK; SOPHIE JENNE; CHI CHUNG LI; BASTIAN RAPP; FREDERIK KOTZ-HELMER; HAYDEN TAYLOR: "Volumetric Additive Manufacturing of Silica Glass with Microscale Computed Axial Lithography", ARXIV.ORG, 4 October 2021 (2021-10-04), US, XP091069991

- STRATASYS: "ProBleacher - Is it clear?", HTTPS://WWW.ALPHACAM.DE, STRATASYS, 1 January 2021 (2021-01-01), pages 1 - 4, XP093446519, Retrieved from the Internet <URL:https://www.alphacam.de/fileadmin/data/Nachbearbeitung/PostCuring/Bleachen/Produktflyer-ProBleacher-2021-09-15.pdf>

- LANNON CHRISTOPHER: "Demystifying Resin Handling for 3D Printing", HTTPS://MACH5IVE.COM, MACH5IVE, 17 July 2023 (2023-07-17), pages 1 - 6, XP093446522, Retrieved from the Internet <URL:https://mach5ive.com/blogs/learning-center/demystifying-resin-handling-for-3d-printing>

- LUCAS STÜWE; MATTHIAS GEIGER; FRANZ RÖLLGEN; THORBEN HEINZE; MARCUS REUTER; MATTHIAS WESSLING; STEFAN HECHT; JOHN LINKHORST: "Continuous Volumetric 3D Printing: Xolography in Flow", ADVANCED MATERIALS, vol. 36, no. 4, 3 December 2023 (2023-12-03), DE , pages n/a - n/a, XP072575013, ISSN: 0935-9648, DOI: 10.1002/adma.202306716

- D20 - Highlighted example of the D18 text starting from the D19 text

Worldwide Patent Family

Related applications and patents in the same INPADOC worldwide family.

11 Family Members

Country	Publication Number	Kind	Publication Date	Action
EP	EP4476052A1	A1	2024-12-18	Espacenet
EP	EP4476052B1	B1	2026-01-14	Espacenet
EP	EP4476052C0	C0	2026-01-14	Espacenet
CN	CN119677630A	A	2025-03-21	Espacenet
DE	DE102023104907A1	A1	2024-08-29	Espacenet
EP	EP4733046A2	A2	2026-04-29	Espacenet
EP	EP4733046A3	A3	2026-07-22	Espacenet
US	US20250256454A1	A1	2025-08-14	Espacenet
US	US20260192535A1	A1	2026-07-09	Espacenet
US	US20260225310A1	A1	2026-08-06	Espacenet
WO	WO2024180086A1	A1	2024-09-06	Espacenet

Official File Inspection EPC Art. 128 Public Dossier

Complete European Patent Register Dossier (148 Total Documents)

The full inspection file for Application EP24708183 contains 148 total documents, including all notices of opposition, proprietor counter-statements, examination communications, third-party observations, and procedural forms. Below are all major recorded procedural filings and publication specifications.

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METHOD FOR PRODUCING AN OPTICAL ELEMENT BY PROCESSING AN OPTICALLY ACTIVE MATERIAL, AND OPTICAL ELEMENT

Patent Abstract / Summary

IPC Classifications

Priority Claims

Designated Contracting States (39 EPC States)

Parties & Representation

Applicants

Inventors (5)

Representatives / Agents

Key Procedural Dates

Patent Oppositions

Quadratic 3D, Inc.

Legal Status & Event History

Patent & Non-Patent Citations

Cited Patent Documents

Non-Patent Scientific Literature (NPL)

Worldwide Patent Family

Complete European Patent Register Dossier (148 Total Documents)

Recorded Filings & Patent Specifications

European Patent Specification - Granted Patent (B1)

Official European Patent Register Full Dossier

European Patent Application with Search Report (A1)

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