Where does ArcelorMittal rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), ArcelorMittal ranks #1,162 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 ArcelorMittal hold?

ArcelorMittal holds 366 US utility patents granted between 2016 and 2025, spanning 89 technology areas.

What is ArcelorMittal's Innovation Score?

ArcelorMittal has an Innovation Score of 66.0 out of 100 (top 1% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is ArcelorMittal's patent grant rate increasing or decreasing?

ArcelorMittal's recent grant velocity is +573% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for ArcelorMittal's patents?

ArcelorMittal's patents average 18.3 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 ArcelorMittal 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

ArcelorMittal

Q: What technology areas does ArcelorMittal focus on?

ArcelorMittal's top technology area is C21D (Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering) with 197 patents, ranking #5 of 428 assignees active in that subclass. Grants appear in 89 CPC subclasses total.

USPTO PatentsView assignee record - 366 granted patents across 89 technology areas, recorded in grant years 2016–2025. 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: C21D (Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Arcelormittal ranks #1,162 of 49,997 tracked US assignees by granted-patent volume, with 366 patents across 89 technology areas.

#1,162
of 49,997 US assignees by volume: Top 1%
by Innovation Score (66.0/100): 18.3
avg claims per patent: +573%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1162 · Foreign Corporation #1,162 · 366 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 366 grants
TOP-DECILE #1,162/49,997
PHOTO-FINISH City of Hope
CPC-WIDE C21D · 89 areas
INNOV-STRONG 66.0/100
CLAIMS-RICH 18.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +573% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: City of Hope (±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 Arcelormittal’s 66.0 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 20.4 pts (31%) Velocity 9.6 pts (15%) Breadth 25.0 pts (38%) Claim depth 11.0 pts (17%)

Qualcomm Incorporated · highest

85
ArcelorMittal · this assignee

66
Chongqing University · near

66
Lam Research · near

66
Tyco Fire Products · near

66
Yahoo Assets · near

66
3D Lighting… · lowest

7

What this shows Arcelormittal's Innovation Score is 66.0/100 (top 1% 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 Arcelormittal?

Each dot is one of Arcelormittal’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). Arcelormittal’s own 18.3 claims/patent is ABOVE the 15.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

How Arcelormittal's grant cadence moved

Between 2020–2024, ArcelorMittal received 269 grants versus 40 in 2015–2019 (+573% equal-window velocity, top decile growth). Across complete PatentsView years, output peaked in 2024 at 69 grants and bottomed in 2016 at 1. Lead class C21D accounts for 53.8% of the portfolio across 89 subclasses. Volume neighbours: Kabam, Inc. (#1,158) and HFI Innovation Inc. (#1,166).

Arcelormittal's three-year grant acceleration

From 2019–2021 to 2022–2024, ArcelorMittal moved from 119 to 171 grants (1.44x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #494. See the growth leaderboard.

Kabam

367
Owens-brockway Gl…

367
Rubrik

367
Westinghouse Elec…

367
City of Hope

366
Arcelormittal ◀

366
Dish Wireless L L…

365
Gojo Industries

365
HFI Innovation

365

What this shows ArcelorMittal holds 366 patents at rank #1,162, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near ArcelorMittal

By rank, the assignees closest to #1,162 in granted patent volume.

Leaders in C21D (Modifying THE Physical Structure OF Ferrous Metals)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for ArcelorMittal, neither rank-band nor same-CPC leaders (those blocks stay above). In C21D (Modifying THE Physical Structure OF Ferrous Metals), ArcelorMittal ranks #5 of 428 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (66 here).

Chongqing University 66 Tyco Fire Products LP 66 Lam Research Corporation 66 Yahoo Assets LLC 66

Similar claim depth

Nearest assignees by average claims per patent (18.3 here).

Conduent Business Services, LLC 18.3 avg Woodward, Inc. 18.3 avg United Services Automobile Association (USAA) 18.3 avg Beijing Voyager Technology Co., Ltd. 18.3 avg

Arcelormittal's Innovation Score vs. every tracked assignee

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

66 Top 1% higher than 99% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

ArcelorMittal patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	0.3%
2017	8	2.2%
2018	10	2.7%
2019	21	5.7%
2020	44	12.0%
2021	54	14.8%
2022	49	13.4%
2023	53	14.5%
2024	69	18.9%
2025partial year	57	15.6%

Which technologies does ArcelorMittal patent most?

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 197

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 187

C22C - Alloys 181

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 110

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 55

Y10T - Technical Subjects Covered BY Former US Classification 41

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 34

B62D - Motor VEHICLES; Trailers 31

C25D - Processes FOR THE Electrolytic OR Electrophoretic Production OF COATINGS; ELECTROFORMING; Apparatus Therefor 29

B21B - Rolling OF Metal 24

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 24

B22D - Casting OF METALS; Casting OF Other Substances BY THE Same Processes OR Devices 22

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 21

C23F - Non-mechanical Removal OF Metallic Material From Surface ; Inhibiting Corrosion OF Metallic Material OR Incrustation IN GENERAL; Multi-step Processes FOR Surface Treatment OF Metallic Material Involving AT Least ONE Process Provided FOR IN Class C23 AND AT Least ONE Process Covered BY Subclass C21d 18

C23G - Cleaning OR De-greasing OF Metallic Material BY Chemical Methods Other Than Electrolysis 11

Top 15 of 89 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

ArcelorMittal's patent record in context - here's where to go next.

ArcelorMittal's lead technology class is C21D (Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering), 53.8% of its portfolio - see every assignee active in that class. Explore C21D
Ranked #1,162 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare ArcelorMittal against Kabam, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 66.0/100 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.