GrafTech International Ltd. (EAF)
NYSE: EAF · Electrical Industrial Apparatus · Brooklyn Heights, OH · filing with the SEC since 1996
Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026104 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 GrafTech International Ltd.’s names, not what it holds today.
Patents granted
104
94 utility, 9 design, 1 reissue, 1976 to Dec 31, 2025
Granted in 2025
1
Against 1 in 2024 and none in 2023
Applications published
60
1 of them in 2025
Names they are printed under
2
a subsidiary
By yearGrantedApplications published
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
Thermal processes and apparatus2
Machine tools1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name2 counted
GrafTech International Holdings Inc. a subsidiary
US, as the owner printed on each patent
40 published
GrafTech International Holdings Inc. a subsidiary
named as the applicant on its applications, in US
20 published
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|---|---|---|---|
| Mar 11, 2025 | 12,247,786 | Systems and methods for graphite electrode identification and monitoring | Thermal processes and apparatus | GrafTech International Holdings Inc. |
| Sep 24, 2024 | 12,097,547 | Extrusion press and method of using | Machine tools | GrafTech International Holdings Inc. |
| Nov 15, 2022 | 11,499,779 | Systems and methods for graphite electrode identification and monitoring | Thermal processes and apparatus | GrafTech International Holdings Inc. |
| Apr 9, 2019 | 10,253,264 | Method of producing needle coke for low CTE graphite electrodes | Basic materials chemistry | GrafTech International Holdings Inc. |
| Mar 19, 2019 | 10,237,928 | Long length electrodes | Electrical machinery, apparatus, energy | GrafTech International Holdings Inc. |
| Jul 3, 2018 | 10,011,492 | Carbon products derived from lignin/carbon residue | Materials, metallurgy | GrafTech International Holdings Inc. |
| Oct 17, 2017 | D800,149 | Display screen or portion thereof with graphical user interface | GrafTech International Holdings Inc. | |
| Oct 3, 2017 | 9,777,221 | Method of producing needle coke for low CTE graphite electrodes | Basic materials chemistry | GrafTech International Holdings Inc. |
| Sep 12, 2017 | 9,758,905 | Process of making carbon fibers derived from lignin/carbon residue | Macromolecular chemistry, polymers | GrafTech International Holdings Inc. |
| Jun 20, 2017 | 9,683,313 | Method of making carbon fibers from lignin | Textile and paper machines | GrafTech International Holdings Inc. |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|---|---|---|---|
| Jun 26, 2025 | 2025/0212299 | MONITORING SYSTEM FOR AN ELECTRODE COUPLING DEVICE | Electrical machinery, apparatus, energy | GrafTech International Holdings Inc. |
| Oct 24, 2024 | 2024/0357711 | FILAMENTED CASK FOR GRAPHITIZATION OF CARBON MATERIAL | Electrical machinery, apparatus, energy | GrafTech International Holdings Inc. |
| Feb 2, 2023 | 2023/0037249 | SYSTEMS AND METHODS FOR GRAPHITE ELECTRODE IDENTIFICATION AND MONITORING | Thermal processes and apparatus | GrafTech International Holdings Inc. · patent 12,247,786 granted from it |
| Aug 26, 2021 | 2021/0260636 | EXTRUSION PRESS AND METHOD OF USING | Machine tools | GrafTech International Holdings Inc. · patent 12,097,547 granted from it |
| Nov 12, 2020 | 2020/0355436 | SYSTEMS AND METHODS FOR GRAPHITE ELECTRODE IDENTIFICATION AND MONITORING | Thermal processes and apparatus | GrafTech International Holdings Inc. · patent 11,499,779 granted from it |
| Oct 4, 2018 | 2018/0282166 | CARBON PRODUCTS DERIVED FROM LIGNIN/CARBON RESIDUE | Materials, metallurgy | GrafTech International Holdings Inc. |
| Jun 21, 2018 | 2018/0169994 | GRAPHITE COMPOSITES AND THERMAL MANAGEMENT SYSTEMS | Surface technology, coating | GrafTech International Holdings Inc. · patent 10,744,736 granted from it |
| Jan 25, 2018 | 2018/0023004 | METHOD OF PRODUCING NEEDLE COKE FOR LOW CTE GRAPHITE ELECTRODES | Basic materials chemistry | GrafTech International Holdings Inc. · patent 10,253,264 granted from it |
| Nov 10, 2016 | 2016/0325464 | THREE DIMENSIONAL CARBON ARTICLES | Materials, metallurgy | GrafTech International Holdings Inc. |
| Sep 29, 2016 | 2016/0280550 | A GRAPHITE ARTICLE | Materials, metallurgy | GrafTech International Holdings Inc. · patent 10,589,998 granted from it |
What it applied for, 2024 to 2025: Electrical machinery, apparatus, energy 2.
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.