Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
47 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 Canadian National Railway’s names, not what it holds today.
Patents granted
47
47 utility, 1976 to Dec 31, 2025
Granted in 2025
none
Against none in 2024 and 3 in 2023
Applications published
68
2 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
IT methods for management3
Macromolecular chemistry, polymers1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name2 counted
Canadian National Railway Company its own name
CA, as the owner printed on each patent
42 publishedCanadian National Railway Company its own name
named as the applicant on its applications, in CA
26 publishedNames not counted (1)
CANADIAN NATIONAL RAILWAY CO
No country is printed for it. 0 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 12, 2023 | 11,842,294 | Method and system for inspecting railway tracks | IT methods for management | Canadian National Railway Company |
| Jul 18, 2023 | 11,702,598 | Method and systems for transporting bitumen in solidified form | Macromolecular chemistry, polymers | Canadian National Railway Company |
| Jan 3, 2023 | 11,544,641 | Method and system for inspecting railway tracks | IT methods for management | Canadian National Railway Company |
| Mar 9, 2021 | 10,943,192 | Method and system for displaying work assignment status information in connection with work to be performed on a component of a linear asset infrastructure | IT methods for management | Canadian National Railway Company |
| Dec 15, 2020 | 10,866,195 | Wheel integrity monitoring system | Measurement | Canadian National Railway Company |
| Aug 11, 2020 | 10,738,245 | Method and systems for transporting bitumen in solidified form | Macromolecular chemistry, polymers | Canadian National Railway Company |
| Dec 31, 2019 | 10,521,739 | Method and system for displaying a condition status of a component of a linear asset system | IT methods for management | Canadian National Railway Company |
| Apr 23, 2019 | 10,268,981 | System and method for providing a price quotation for a transportation service providing equipment selection capability | IT methods for management | Canadian National Railway Company |
| Oct 2, 2018 | 10,086,852 | End-of car energy management system for railcars | Transport | Canadian National Railway Company |
| May 10, 2016 | 9,336,507 | System and method for providing a price quotation for a transportation service providing equipment selection capability | IT methods for management | Canadian National Railway Company |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Jun 19, 2025 | 2025/0197727 | METHOD AND SYSTEMS FOR TRANSPORTING BITUMEN IN SOLIDIFIED FORM | Macromolecular chemistry, polymers | Canadian National Railway Company |
| Jun 19, 2025 | 2025/0197726 | METHOD AND SYSTEMS FOR TRANSPORTING BITUMEN IN SOLIDIFIED FORM | Macromolecular chemistry, polymers | Canadian National Railway Company |
| Aug 1, 2024 | 2024/0254028 | DEVICE FOR DEWATERING AND METHOD OF MAKING SAME | Textile and paper machines | Canadian National Railway Company |
| Nov 16, 2023 | 2023/0365868 | METHOD AND SYSTEMS FOR TRANSPORTING BITUMEN IN SOLIDIFIED FORM | Macromolecular chemistry, polymers | Canadian National Railway Company |
| Aug 11, 2022 | 2022/0253758 | METHOD AND SYSTEM FOR INSPECTING RAILWAY TRACKS | IT methods for management | Canadian National Railway Company · patent 11,842,294 granted from it |
| Nov 4, 2021 | 2021/0340046 | DEVICE FOR DEWATERING AND METHOD OF MAKING SAME | Textile and paper machines | Canadian National Railway Company |
| Feb 11, 2021 | 2021/0042672 | METHOD AND SYSTEM FOR INSPECTING RAILWAY TRACKS | IT methods for management | Canadian National Railway Company · patent 11,544,641 granted from it |
| Jan 21, 2021 | 2021/0017452 | METHOD AND SYSTEMS FOR TRANSPORTING BITUMEN IN SOLIDIFIED FORM | Macromolecular chemistry, polymers | Canadian National Railway Company · patent 11,702,598 granted from it |
| Mar 19, 2020 | 2020/0090084 | METHOD AND SYSTEM FOR DISPLAYING WORK ASSIGNMENT STATUS INFORMATION IN CONNECTION WITH WORK TO BE PERFORMED ON A COMPONENT OF A LINEAR ASSET INFRASTRUCTURE | IT methods for management | Canadian National Railway Company · patent 10,943,192 granted from it |
| Jan 9, 2020 | 2020/0012991 | Method and System for Assigning Jobs to Prevent Employee Qualifications From Lapsing | IT methods for management | Canadian National Railway Company |
What it applied for, 2024 to 2025: Macromolecular chemistry, polymers 2 · Textile and paper machines 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.