Company Analysis
Sign in

Tenaris S. A. (TS)

NYSE: TS · Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) · Luxembourg, LU · filing with the SEC since 2002
Full chart Alerts Compare
Grade6.6
◀ Past 6.5● Present 7.4▶ Future 5.9
1 est.
OverviewBusinessFinancialsGradeForecastSentimentOwnershipPeopleFilingsPatents Chart

Patents

US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026

310 patents granted to the 6 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to Tenaris S. A.’s names, not what it holds today.

Patents granted
310
308 utility, 2 reissue, 1976 to Dec 31, 2025
Granted in 2025
6
Against 8 in 2024 and 2 in 2023
Applications published
68
9 of them in 2025
Names they are printed under
6
a subsidiary
By yearGrantedApplications published
'10'11'12'13'14'15'17'18'19'20'21'22'23'24'25
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Mechanical elements13
Civil engineering8
Materials, metallurgy2
Handling1
Surface technology, coating1
Other special machines1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name6 counted
Hydril Company a subsidiary
US, as the owner printed on each patent. 1 more under the same name are not counted (printed in AR)
280 granted
35 published
Tenaris Connections B.V. a subsidiary
NL, as the owner printed on each patent. 1 more under the same name are not counted (printed in AR)
21 granted
11 published
Tenaris Connections B.V. a subsidiary
named as the applicant on its applications, in NL. 7 more under the same name are not counted (printed in VC)
0 granted
16 published
Hydril Company L.P. a subsidiary
US, as the owner printed on each patent
9 granted
1 published
Hydril Company a subsidiary
named as the applicant on its applications, in US
0 granted
4 published
ALGOMA TUBES, INC. a subsidiary
CA, as the owner printed on each patent
0 granted
1 published
Names not counted (2)
TENARIS CONNECTIONS BV
Most of its patents print VC; this name counts in NL. 43 granted and 36 published under it are not counted.
TENARIS SA
Most of its patents print LI; this name counts in LU. 0 granted and 1 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Dec 2, 202512,486,935Pipe connection for exploration and production of a hydrocarbon wellMechanical elementsTenaris Connections B.V.
Nov 25, 202512,480,369Threaded connection for hammering interconnected tubular membersCivil engineeringTenaris Connections B.V.
Aug 5, 202512,378,984Threaded and coupled tubular goods connectionMechanical elementsHydril Company
Jul 22, 202512,366,123Wedge thread connection for tubular goodsCivil engineeringHydril Company
May 13, 202512,297,700Curvilinear sealing systemMechanical elementsHydril Company
Apr 1, 202512,264,758Threaded jointMechanical elementsTenaris Connections B.V.
Dec 10, 202412,163,383Threaded connection for exploration and production of a hydrocarbon wellCivil engineeringTenaris Connections B.V.
Nov 19, 202412,146,591Threaded connection for exploration and production of a hydrocarbon wellMechanical elementsHydril Company
Oct 29, 202412,129,533Ultra-fine grained steels having corrosion- fatigue resistanceMaterials, metallurgyTenaris Connections B.V.
Oct 15, 202412,116,848Threaded connection for exploration and production of a hydrocarbon wellCivil engineeringTenaris Connections B.V.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Dec 25, 20252025/0389393STORAGE ASSEMBLY FOR STORING PRESSURISED FLUID, SUCH AS HYDROGENMechanical elementsTenaris Connections B.V.
Nov 13, 20252025/0347179WEDGE THREAD CONNECTION FOR TUBULAR GOODSCivil engineeringHydril Company
Aug 21, 20252025/0263987CURVILINEAR SEALING SYSTEMMechanical elementsHydril Company
Aug 14, 20252025/0257823THREADED JOINTMechanical elementsTenaris Connections B.V.
May 15, 20252025/0155056A THREADED PIPE CONNECTIONMechanical elementsTenaris Connections B.V.
Apr 3, 20252025/0109465ULTRA-FINE GRAINED STEELS HAVING CORROSION-FATIGUE RESISTANCEMaterials, metallurgyTenaris Connections B.V.
Mar 6, 20252025/0075720CIRCULAR LOCKING SEALMechanical elementsHydril Company
Jan 30, 20252025/0035250PROTECTOR ASSEMBLYMechanical elementsTenaris Connections B.V.
Jan 30, 20252025/0034953THREADED CONNECTION FOR EXPLORATION AND PRODUCTION OF A HYDROCARBON WELLCivil engineeringTenaris Connections B.V.
Dec 26, 20242024/0426416A PROTECTOR ASSEMBLY AND ASSOCIATED METHOD FOR PROTECTING A THREADED PIPEMechanical elementsTenaris Connections B.V.
What it applied for, 2024 to 2025: Mechanical elements 9 · Civil engineering 5 · Measurement 1 · Materials, metallurgy 1.

A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.

SI Assistanton TS · research, not advice