Where does Canadian National Railway Company rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Canadian National Railway Company ranks #24,052 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Canadian National Railway Company hold?

Canadian National Railway Company holds 11 US utility patents granted between 2015 and 2023, spanning 10 technology areas.

What is Canadian National Railway Company's Innovation Score?

Canadian National Railway Company has an Innovation Score of 37.0 out of 100 (top 45% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Canadian National Railway Company focus on?

Canadian National Railway Company's top technology area is G06F (Electric Digital Data Processing) with 7 patents, ranking #4,773 of 13,878 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

Is Canadian National Railway Company's patent grant rate increasing or decreasing?

Canadian National Railway Company's recent grant velocity is +20% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Canadian National Railway Company's patents?

Canadian National Railway Company's patents average 22.0 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Canadian National Railway Company patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Canadian National Railway Company

USPTO PatentsView assignee record - 11 granted patents across 10 technology areas, recorded in grant years 2015–2023. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: G06F (Electric Digital Data Processing).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Canadian ranks #24,052 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 10 technology areas.

#24,052
of 49,997 US assignees by volume: Top 45%
by Innovation Score (37.0/100): 22.0
avg claims per patent: +20%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R24052 · Foreign Corporation #24,052 · 11 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-DENSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MICRO 11 grants
MID-PACK #24,052/49,997
PHOTO-FINISH Calagen
CPC-FOCUS G06F · 10 areas
INNOV-THIN 37.0/100
CLAIMS-DENSE 22.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +20% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Calagen, Inc. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Canadian’s 37.0 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 8.6 pts (23%) Velocity 4.0 pts (11%) Breadth 11.2 pts (30%) Claim depth 13.2 pts (36%)

Qualcomm Incorporated · highest

85
Callfire · near

37
Canadian National… · this assignee

37
GE Oil & Gas… · near

37
Phoenix · near

37
Rudolph · near

37
3D Lighting… · lowest

7

What this shows Canadian's Innovation Score is 37.0/100 (top 45% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Canadian?

Each dot is one of Canadian’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Canadian’s own 22.0 claims/patent is ABOVE the 19.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Canadian vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Canadian's grants concentrate

Canadian National Railway Company is a focused PatentsView assignee: 10 CPC subclasses with 63.6% of grants classified under G06F (Electric Digital Data Processing). Peak complete grant year is 2023 (3 grants) versus a trough of 1 in 2015. By volume, Canadian sits between Calagen, Inc. and Carbitex, Inc..

Canadian's three-year grant acceleration

Canadian National Railway Company shows 3 grants in 2022–2024 against only 5 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Calagen

11
Cambridge Crops

11
Cambridge Polymer…

11
Cambridge Sound M…

11
Cansonic

11
Capat

11
Cara Therapeutics

11
Carbitex

11
Canadian National… ◀

11

What this shows Canadian holds 11 patents at rank #24,109, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Canadian

By rank, the assignees closest to #24,109 in granted patent volume.

Leaders in G06F (Electric Digital Data Processing)

Other assignees with the most granted patents in Canadian's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Canadian, neither rank-band nor same-CPC leaders (those blocks stay above). In G06F (Electric Digital Data Processing), Canadian ranks #4,773 of 13,878 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (37 here).

Callfire, Inc. 37 GE Oil & Gas Compression Systems, LLC 37 Rudolph Technologies, Inc. 37 Phoenix, LLC 37

Canadian's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

37 Top 45% higher than 55% of 49,997 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2015–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Canadian National Railway Company patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	9.1%
2016	1	9.1%
2018	1	9.1%
2019	2	18.2%
2020	2	18.2%
2021	1	9.1%
2023	3	27.3%

Which technologies does Canadian National Railway Company patent most?

G06F - Electric Digital Data Processing 7

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 7

B61L - Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic 5

G07G - Registering THE Receipt OF Cash, Valuables, OR Tokens 3

C08L - Compositions OF Macromolecular Compounds 2

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 2

C10G - Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GASES; Refining Mixtures Mainly Consisting OF HYDROCARBONS; Reforming OF NAPHTHA; Mineral Waxes 2

B61G - COUPLINGS; Draught AND Buffing Appliances 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 1

Top 10 of 10 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Canadian National Railway Company's patent record in context - here's where to go next.

Canadian National Railway Company's lead technology class is G06F (Electric Digital Data Processing), 63.6% of its portfolio - see every assignee active in that class. Explore G06F
Ranked #24,052 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Canadian National Railway Company against Calagen, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 37.0/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.