Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
394 patents granted to the 2 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 Eni S.P.A.’s names, not what it holds today.
Patents granted
394
394 utility, 1976 to Dec 31, 2025
Granted in 2025
22
Against 23 in 2024 and 16 in 2023
Applications published
479
12 of them in 2025
Names they are printed under
2
its own name
By yearGrantedApplications published
'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
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
Semiconductors19
Basic materials chemistry17
Civil engineering9
Chemical engineering8
Macromolecular chemistry, polymers5
Thermal processes and apparatus5
Biotechnology4
Measurement4
Organic fine chemistry4
Environmental technology4
Materials, metallurgy3
Engines, pumps, turbines3
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name2 counted
ENI S.P.A. its own name
IT, as the owner printed on each patent. 9 more under the same name are not counted (printed in US, printed in DE, printed in JP)
350 publishedENI S.P.A. its own name
named as the applicant on its applications, in IT. 1 more under the same name are not counted (printed in US)
129 publishedNames not counted (1)
ENI SPA
Most of its patents print US; this name counts in IT. 4 granted and 1 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Dec 30, 2025 | 12,509,639 | Removal of acid gases from gaseous mixtures containing them | Environmental technology | ENI S.P.A. |
| Oct 28, 2025 | 12,457,895 | Semi-transparent perovskite-based photovoltaic cells and process for preparing them | Semiconductors | ENI S.P.A. |
| Aug 19, 2025 | 12,392,011 | Process for the selective recovery of transition metals from organic residues | Materials, metallurgy | ENI S.P.A. |
| Aug 19, 2025 | 12,391,785 | Lipophylic copolymers comprising polar multi-blocks, process for the preparation thereof and use in lubricating compositions | Basic materials chemistry | ENI S.P.A. |
| Aug 12, 2025 | 12,389,734 | Inverted polymer photovoltaic cell and method for preparation thereof | Semiconductors | ENI S.P.A. |
| Jul 22, 2025 | 12,365,588 | Production of synthesis gas and of methanol | Materials, metallurgy | ENI S.P.A. |
| Jul 15, 2025 | 12,362,631 | WEC controller, method and system | Engines, pumps, turbines | ENI S.P.A. |
| Jul 8, 2025 | 12,351,774 | Friction reducing additives and process for preparing the same | Basic materials chemistry | ENI S.P.A. |
| Jul 1, 2025 | 12,343,710 | Hydrotreatment catalysts and process for preparing said catalysts | Chemical engineering | ENI S.P.A. |
| Jun 10, 2025 | 12,325,777 | Fluid for controlling the permeability of a subterranean formation, and use thereof | Macromolecular chemistry, polymers | ENI S.P.A. |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Dec 25, 2025 | 2025/0388714 | LIPOPHYLIC COPOLYMERS COMPRISING POLAR MULTI-BLOCKS, PROCESS FOR THE PREPARATION THEREOF AND USE IN LUBRICATING COMPOSITIONS | Basic materials chemistry | ENI S.P.A. |
| Nov 20, 2025 | 2025/0359472 | FULLERENE-FUNCTIONALIZED VINYL POLYMERS AND PREPARATION PROCESS THEREOF | Semiconductors | ENI S.P.A. |
| Oct 23, 2025 | 2025/0331356 | PEROVSKITE BASED PHOTOVOLTAIC CELLS AND PROCESS FOR PREPARING THE SAME | Semiconductors | ENI S.P.A. |
| Sep 25, 2025 | 2025/0296068 | SHELL-AND-TUBE REACTOR AND HIGH-TEMPERATURE REDOX PROCESS | Materials, metallurgy | ENI S.P.A. |
| Sep 11, 2025 | 2025/0284014 | ACOUSTIC WAVE GENERATOR FOR UNDERWATER APPLICATIONS | Measurement | ENI S.P.A. |
| Aug 14, 2025 | 2025/0256960 | PRODUCTION OF SYNTHESIS GAS AND OF METHANOL | Organic fine chemistry | ENI S.P.A. |
| Jul 24, 2025 | 2025/0241194 | PEROVSKITE-BASED SEMI-TRANSPARENT PHOTOVOLTAIC CELLS AND THE PROCESS FOR THE PREPARATION THEREOF | Semiconductors | ENI S.P.A. |
| May 1, 2025 | 2025/0136253 | MOORING DEVICE AND METHOD | Engines, pumps, turbines | ENI S.P.A. |
| Apr 17, 2025 | 2025/0123139 | SYSTEM AND METHOD FOR MONITORING OF AN OBJECT/STRUCTURE BY MEASUREMENT OF VIBRATIONS USING AN OPTICAL FIBER | Measurement | ENI S.P.A. |
| Feb 20, 2025 | 2025/0059447 | PROCESS OF DEHALOGENATION OF PLASTIC MATERIALS INCLUDING RECYCLED ONES, AND USE OF ONE OR MORE CHEMICAL COMPOUNDS CONTAINING NITROGEN AS A DEHALOGENATING AGENT OF PLASTIC MATERIALS INCLUDING RECYCLED ONES | Other special machines | ENI S.P.A. |
What it applied for, 2024 to 2025: Semiconductors 5 · Environmental technology 4 · Basic materials chemistry 4 · Measurement 4 · Chemical engineering 3 · Materials, metallurgy 3.
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.