Key information

Title
TENSIONED WELLHEAD SYSTEMS AND RELATED METHODS
Application number
20251323
Case type
National
Status
31.10.2025 Første realitetsuttalelse foreligger
Filed
31.10.2025
Priority
01.11.2024 US 63/715,342
Effective date
31.10.2025
Publicly available
04.05.2026
Next annual fee due
31.10.2026
Applicant
OneSubsea AS (NO)
Inventor
Brynjulf Spalder (NO) et al.
Agent
HÅMSØ PATENTBYRÅ AS (NO)

Abstract and drawing

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Publications

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Documents

 Expand Download files (10)
Date
 Date Doc. No. Process Case number In/Out Journal description To/from
 31.05.2026 05-02 Saksbehandling 20251323 UT PT report 07:31:54
31.05.2026 05-01 Saksbehandling 20251323 UT Substantive Examination HÅMSØ PATENTBYRÅ AS
 02.04.2026 04-01 Saksbehandling 20251323 UT PT Varsel om betaling av første årsavgift (3317) (PT20251323) HÅMSØ PATENTBYRÅ AS
 09.12.2025 03-03 Saksbehandling 20251323 INN P31921NO00 Signed Power of Attorney HÅMSØ PATENTBYRÅ AS
 09.12.2025 03-02 Saksbehandling 20251323 INN P31921NO00 Letter to NIPO HÅMSØ PATENTBYRÅ AS
 09.12.2025 03-01 Saksbehandling 20251323 INN Korrespondanse (Hovedbrev inn) HÅMSØ PATENTBYRÅ AS
 03.11.2025 02-01 Saksbehandling 20251323 UT Formal Examination 1 HÅMSØ PATENTBYRÅ AS
 31.10.2025 01-03 Saksbehandling 20251323 INN P31921NO00 Specification HÅMSØ PATENTBYRÅ AS
 31.10.2025 01-02 Saksbehandling 20251323 INN P31921NO00 Drawings HÅMSØ PATENTBYRÅ AS
 31.10.2025 01-01 Saksbehandling 20251323 INN Søknadsskjema Patent HÅMSØ PATENTBYRÅ AS

Description, claims and drawings

Priority

01.11.2024 US 63/715,342

Patent classes

IPC classesE21B 33/035E21B 33/038E21B 33/037E21B 33/043CPC classesE21B 33/035E21B 33/038E21B 33/037E21B 33/043

Citations

NO 20240029 A1 (A1 )WO 2003/002845 A1 (A1 )US 4651830 A (A )

Applicants, owners and inventors

Applicants
OneSubsea AS
Strandveien 4 1366 LYSAKER NO (BÆRUM Municipality, Akershus county)Org. number: 929765001Inventors
Brynjulf Spalder
Strandveien 4-8 1366 LYSAKER NO (BÆRUM Municipality, Akershus county)
Johan Andre Riis Wesman
Maskinveien 13, Tranby 4033 STAVANGER NO (STAVANGER Municipality, Rogaland county)

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: P31921NO00

Status history

Payment history

Oppositions and appeals

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Administrative limitation

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Liens and licences

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Gazette entries

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