Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
12 patents granted to the 3 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 CSX Corporation’s names, not what it holds today.
Patents granted
12
11 utility, 1 reissue, 1976 to Dec 31, 2025
Granted in 2025
none
Against none in 2024 and 1 in 2023
Applications published
5
since 2001, to Dec 31, 2025
Names they are printed under
3
a subsidiary, its own name
By yearGrantedApplications published
'89'93'98'02'04'05'08'11'13'14'16'20'23
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
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name3 counted
CSX TRANSPORTATION, INC. a subsidiary
US, as the owner printed on each patent
4 publishedCSX Corporation its own name
US, as the owner printed on each patent
0 publishedCSX TRANSPORTATION a subsidiary
named as the applicant on its applications, in US
1 published
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Feb 7, 2023 | 11,572,089 | Enhanced safety proximity (ESP) alerter | Transport | CSX TRANSPORTATION, INC. |
| Nov 1, 2016 | 9,482,536 | Pose estimation | Measurement | CSX TRANSPORTATION, INC. |
| Sep 6, 2016 | 9,434,019 | Re-manufacture and apparatus of worn railroad freight car and locomotive wheels by rotational continuous longitudinal welding | Machine tools | CSX TRANSPORTATION, INC. |
| Feb 5, 2013 | 8,367,960 | Process for rail restoration and rail manufacture using welding | Machine tools | CSX TRANSPORTATION, INC. |
| May 6, 2008 | RE40,286 | System and method for supplying auxiliary power to a large diesel engine | | CSX TRANSPORTATION, INC. |
| Sep 20, 2005 | 6,945,207 | System and method for supplying auxiliary power to a large diesel engine | Engines, pumps, turbines | CSX TRANSPORTATION, INC. |
| Apr 20, 2004 | 6,722,186 | Method and apparatus for locomotive fuel tank repair | Handling | CSX TRANSPORTATION, INC. |
| Oct 29, 2002 | 6,470,844 | System and method for supplying auxiliary power to a large diesel engine | Engines, pumps, turbines | CSX TRANSPORTATION, INC. |
| Apr 30, 2002 | 6,378,188 | Method and apparatus for locomotive fuel tank repair | Handling | CSX TRANSPORTATION, INC. |
| Mar 17, 1998 | 5,727,473 | Rotary lock for a split ramp railway car | Transport | CSX Corporation |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Aug 13, 2020 | 2020/0255042 | ENHANCED SAFETY PROXIMITY (ESP) ALERTER | Transport | CSX TRANSPORTATION · patent 11,572,089 granted from it |
| Feb 6, 2014 | 2014/0033535 | RE-MANUFACTURE AND APPARATUS OF WORN RAILROAD FREIGHT CAR AND LOCOMOTIVE WHEELS BY ROTATIONAL CONTINUOUS LONGITUDINAL WELDING | Machine tools | CSX TRANSPORTATION, INC. · patent 9,434,019 granted from it |
| Jul 25, 2013 | 2013/0186869 | COUPLER INSTALLATION DEVICE | Machine tools | CSX TRANSPORTATION, INC. |
| Dec 8, 2011 | 2011/0297752 | PROCESS AND APPARATUS FOR RAIL RESTORATION AND RAIL MANUFACTURE USING WELDING | Machine tools | CSX TRANSPORTATION, INC. · patent 8,367,960 granted from it |
| Aug 15, 2002 | 2002/0108227 | Method and apparatus for locomotive fuel tank repair | Handling | CSX TRANSPORTATION, INC. · patent 6,722,186 granted from it |
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.