The patent has been granted The patent has been granted, Grant of patent is intended, Examination is in progress EP Register Verified

PAPER SIZING USING AN AGENT CONTAINING UNIFORMLY BOUND OCTENYL SUCCINIC ANHYDRIDE GROUPS MADE BY THE REACTION OF OCTENYL SUCCINIC ANHYDRIDE ONTO A DISPERSED WAXY STARCH

Publication No. EP2762636

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App No. EP14152303

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Filed by Corn Products Development, Inc

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Filed on 2014-01-23

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Issued/Published on 2025-08-20

Official EPO Register

Publication No. EP2762636 A1

Application No. EP14152303 Filed: 2014-01-23

Grant Date 2025-08-20 Mention of grant

Active Oppositions 1 Active EPO Oppositions

Patent Abstract / Summary

The application relates to an agent containing bound octenyl succinic anhydride groups made via the reaction of octenyl succinic anhydride onto a dispersed waxy starch, which provides significant improvements in paper porosity reduction, when added at a low level to a commodity surface starch dispersion and used to surface size paper.

IPC Classifications

D21H17/17, D21H17/28, D21H19/54, D21H21/16

Priority Claims

US 201313753881 Date: 2013-01-30

Designated Contracting States (38 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 MK MT NL NO PL PT RO RS SE SI SK SM TR

Parties & Representation

Applicants

Corn Products Development, Inc

Av. Do Cafe, 277 Andar

Inventors (2)

Trksak, Ralph

125 South 16th Avenue, Manville, NJ New Jersey 08835

Foong, Non Kam

Block 528, Jurong West ST. 52

Representatives / Agents

Hoyng Rokh Monegier B.V.

Rembrandt Tower, 30th Floor, Amstelplein 1

Novagraaf Group

Chemin de l'Echo 3, 1213 Onex / Geneva

Held, Stephan, et al

Meissner, Bolte & Partner GbR, Widenmayerstraße 47

Cargill IP Department

Cargill R&D Centre Europe BV, Bedrijvenlaan 9

Key Procedural Dates

Request-For-Examination 2015-02-06

Mention Of Grant Published 2025-08-20

First-Examination-Report-Despatched 2018-03-13

Legal Status & Event History

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

54 Events Recorded

Date	Code	Event Description	Auth
2014-08-06	AX	REQUEST FOR EXTENSION OF THE EUROPEAN PATENT	EP
2014-08-06	AK	DESIGNATED CONTRACTING STATES	EP
2014-08-06	17P	REQUEST FOR EXAMINATION FILED	EP
2015-03-18	R17P	REQUEST FOR EXAMINATION FILED (CORRECTED)	EP
2015-03-18	RBV	DESIGNATED CONTRACTING STATES (CORRECTED)	EP
2018-04-11	17Q	FIRST EXAMINATION REPORT DESPATCHED	EP
2014-08-05	PUAI	PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE	EP
2018-03-09	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-03-16	GRAP	DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT	EP
2025-03-16	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-04-16	INTG	INTENTION TO GRANT ANNOUNCED	EP
2025-07-11	GRAS	GRANT FEE PAID	EP
2025-07-18	GRAA	(EXPECTED) GRANT	EP
2025-07-18	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-08-20	AK	DESIGNATED CONTRACTING STATES	EP
2025-08-20	REG	REFERENCE TO A NATIONAL CODE	EP
2025-08-29	REG	REFERENCE TO A NATIONAL CODE	EP
2025-09-10	P01	OPT-OUT OF THE COMPETENCE OF THE UNIFIED PATENT COURT (UPC) REGISTERED	EP
2025-09-11	REG	REFERENCE TO A NATIONAL CODE	EP
2025-09-10	REG	REFERENCE TO A NATIONAL CODE	EP
2025-12-24	REG	REFERENCE TO A NATIONAL CODE	EP
2026-01-08	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-12	REG	REFERENCE TO A NATIONAL CODE	EP
2026-01-12	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-13	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-14	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-15	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-16	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-20	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-22	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-23	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-28	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-30	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-02-15	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-06	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-09	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-13	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-13	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-14	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-15	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-20	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-23	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-28	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-05-22	PLBI	OPPOSITION FILED	EP
2026-05-28	REG	REFERENCE TO A NATIONAL CODE	EP
2026-06-04	PLAX	NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT	EP
2026-05-18	REG	REFERENCE TO A NATIONAL CODE	EP
2026-06-24	26	OPPOSITION FILED	EP
2026-06-30	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-08-25	REG	REFERENCE TO A NATIONAL CODE	EP
2026-09-16	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-10-07	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-10-07	PLBB	REPLY OF PATENT PROPRIETOR TO NOTICE(S) OF OPPOSITION RECEIVED	EP
2026-10-08	REG	REFERENCE TO A NATIONAL CODE	EP

Patent & Non-Patent Citations

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

32 Citations

Cited Patent Documents

US7829600 2010-11-09

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US8252322 2012-08-28

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US6447615 2002-09-10

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EP1484055 2004-12-08

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US3455838 1969-07-15

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US2004033744 2004-02-19

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WO02074814 2002-09-26

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EP0014520 1980-08-20

Espacenet

WO2005012636 2005-02-10

Espacenet

EP2762636 2014-08-06

Espacenet

US2014212589 2014-07-31

Espacenet

EP0350668 1990-01-17

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US2661349 1953-12-01

Espacenet

US4239592 1980-12-16

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US2011124746 2011-05-26

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US6521088 2003-02-18

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US2003173045 2003-09-18

Espacenet

Non-Patent Scientific Literature (NPL)

- WURZBURG, O.B.: "Modified Starches:Praperties and Uses", 1986, PRESS, article "Converted Starches", pages: 17 - 29

- "Modified Starches: Properties and Uses", 1986, CRC PRESS, INC., pages: 10 - 13

- D1 - DESCRIPTION AS FILED

- D2 - CLAIMS AS FILED

- D6 - search opinion accompanying the European search report

- D7 - reply to European search report

- D8 - Declaration by the inventor

- WURZBURG, O. B. [ED.]: "MODIFIED STARCHES: PROPERTIES AND USES", 1 January 1986, CRC PRESS , US , ISBN: 0-8493-5964-3, article PAOLO C. TRUBIANO: "Chapter 4: Succinate and substituted succinate derivatives of starch", pages: 131 - 147, XP009567194

- D11 - DAVID J. THOMAS AND WILLIAM A. ATWELL: "Starches", 1 January 1999, ST. PAUL, MINN. : EAGAN PRESS, 1999, ISBN: 978-1-891127-01-4, article DAVID J. THOMAS AND WILLIAM A. ATWELL: "Chapter 4 “Starch Modifications”", pages: 31 - 48, XP009567195

- D11a - Evidence of publication date of D11

- D12 - Office Action communication of 17 April 2020 35

- D13 - Office Action communication of 10 May 2021

- D14 - response Patentee 27 August 2020

- ANONYMOUS: "Visco 88", MALVERN BOHLIN, 1 January 2010 (2010-01-01), XP093400876

- "Starch: Chemistry and Technology (Food Science and Technology)", 6 April 2009, ACADEMIC PRESS , GB , ISBN: 978-0-12-746275-2, article HANS W. MAURER: "Chapter 18 - Starch in the Paper Industry", pages: 657 - 713, XP009565945, DOI: 10.1016/B978-0-12-746275-2.00018-5

Worldwide Patent Family

Related applications and patents in the same INPADOC worldwide family.

16 Family Members

Country	Publication Number	Kind	Publication Date	Action
EP	EP2762636A1	A1	2014-08-06	Espacenet
EP	EP2762636B1	B1	2025-08-20	Espacenet
AU	AU2014200478A1	A1	2014-08-14	Espacenet
AU	AU2014200478B2	B2	2016-12-22	Espacenet
BR	BR102014002231A2	A2	2016-02-23	Espacenet
BR	BR102014002231B1	B1	2021-08-17	Espacenet
CA	CA2840832A1	A1	2014-07-30	Espacenet
CA	CA2840832C	C	2021-01-12	Espacenet
CN	CN103966901A	A	2014-08-06	Espacenet
CN	CN103966901B	B	2017-04-12	Espacenet
JP	JP2014177735A	A	2014-09-25	Espacenet
JP	JP6355929B2	B2	2018-07-11	Espacenet
MX	MX2014001171A	A	2014-12-09	Espacenet
MX	MX341281B	B	2016-08-12	Espacenet
US	US2014212589A1	A1	2014-07-31	Espacenet
US	US8962092B2	B2	2015-02-24	Espacenet

Official File Inspection EPC Art. 128 Public Dossier

Complete European Patent Register Dossier (148 Total Documents)

The full inspection file for Application EP14152303 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.

Open 148-Doc Register Dossier

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Date: 2026-05-01 Procedure: Examination 0009250

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PAPER SIZING USING AN AGENT CONTAINING UNIFORMLY BOUND OCTENYL SUCCINIC ANHYDRIDE GROUPS MADE BY THE REACTION OF OCTENYL SUCCINIC ANHYDRIDE ONTO A DISPERSED WAXY STARCH

Patent Abstract / Summary

IPC Classifications

Priority Claims

Designated Contracting States (38 EPC States)

Parties & Representation

Applicants

Inventors (2)

Representatives / Agents

Key Procedural Dates

Patent Oppositions

Cargill, Incorporated

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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