Key information

Title
HEATING SYSTEMS
Application number
EP4077866
Case type
European
Status
12.01.2026 EP patent besluttet gjeldende i Norge
EPO filing date
16.12.2020
EP Application No.
20824245.3 Check EP register
EP granted
27.08.2025
Priority
20.12.2019 GB 201918937
International application date
16.12.2020
International application number
PCT/EP2020/086340
Effective date
16.12.2020
Publicly available
26.10.2022
Next annual fee due
31.12.2026
Owner
OneSubsea AS (NO)
Inventor
BJERKNES, Ole Johan (NO)
Agent
HÅMSØ PATENTBYRÅ AS (NO)
Validated in Norway
12.01.2026
Patent number
NO/EP4077866
Expiry date
16.12.2040

Abstract and drawing

No abstract or drawing found.

Publications

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Documents

 Expand Download files (23)
Date
 Date Doc. No. Process Case number In/Out Journal description To/from
 30.09.2026 19-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
23.09.2026 18-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
12.08.2026 17-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
05.08.2026 16-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
03.06.2026 15-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
27.05.2026 14-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
20.05.2026 13-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
13.05.2026 12-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
22.04.2026 11-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
11.03.2026 10-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
04.03.2026 09-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
27.02.2026 02-01 Endring av fullmektig 2026/01469 UT Tilbakemelding på generell henvendelse HÅMSØ PATENTBYRÅ AS
 25.02.2026 08-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
24.02.2026 01-02 Endring av fullmektig 2026/01469 INN P31964NOEP Signed Power of Attorney HÅMSØ PATENTBYRÅ AS
 24.02.2026 01-01 Endring av fullmektig 2026/01469 INN Generell henvendelse HÅMSØ PATENTBYRÅ AS
 18.02.2026 07-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
11.02.2026 06-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO
12.01.2026 05-01 Saksbehandling EP4077866 UT EP Registreringsbrev (3210) (PTEP4077866)
02.12.2025 04-01 Saksbehandling EP4077866 UT EP Varsel om betaling av første årsavgift (3319) (PTEP4077866) HÅMSØ PATENTBYRÅ AS
 27.11.2025 03-01 Saksbehandling EP4077866 UT EP Formelle mangler HÅMSØ PATENTBYRÅ AS
 27.11.2025 01-02 Saksbehandling EP4077866 INN P31964NOEP Claims in Norwegian HÅMSØ PATENTBYRÅ AS
 27.11.2025 01-01 Saksbehandling EP4077866 INN Søknadsskjema EP (EP Form) HÅMSØ PATENTBYRÅ AS
 27.08.2025 02-01 Saksbehandling 4077866 INN EP Publiseringsdokument fra EPO

Description, claims and drawings

Priority

20.12.2019 GB 201918937

Patent classes

IPC classesE21B 17/01E21B 36/00E21B 36/04E21B 41/02E21B 43/01E21B 47/07F16L 53/34F16L 53/37F17D 1/18H05B 3/00H05B 3/04H05B 3/42H05B 6/10

Citations

EP-A1- 2 493 262 (B1)EP-A1- 3 244 116 (B1)EP-B1- 2 493 262 (B1)EP-B1- 3 244 116 (B1)HALVORSEN ET AL., HYDRATE AND WAX PREVENTION OF RISERS BY ELECTRICAL HEATING (B1)HALVORSEN V H ET AL: "HYDRATE AND WAX PREVENTION OF RISERS BY ELECTRICAL HEATING", SYNTHETIC METALS, ELSEVIER SEQUOIA, LAUSANNE, CH, vol. 85, no. 1-03, 28 May 2000 (2000-05-28), pages 42 - 48, XP001051657, ISSN: 0379-6779 (B1)US-A1- 2002 122 664 (B1)

Applicants, owners and inventors

Owners
OneSubsea AS
Strandveien 4 1366 LYSAKER NO (BÆRUM Municipality, Akershus county)Org. number: 929765001Inventors
BJERKNES, Ole Johan
Ryghs vei 7A 0786 Oslo NO

Agent

HÅMSØ PATENTBYRÅ AS
HÅMSØ PATENTBYRÅ AS

Org. number: 918752900

Name and address are automatically synchronized with the Brønnøysund Register Centre.

Open in The Brønnøysund Register Centre
Postboks 9 4068 STAVANGER NO (STAVANGER Municipality, Rogaland county)
Org. number: 918752900
Reference: -

Status history

Payment history

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Gazette entries

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