Where does Baoshan Iron & Steel Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Baoshan Iron & Steel Co., Ltd. ranks #2,053 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 Baoshan Iron & Steel Co., Ltd. hold?

Baoshan Iron & Steel Co., Ltd. holds 193 US utility patents granted between 2015 and 2025, spanning 78 technology areas.

What is Baoshan Iron & Steel Co., Ltd.'s Innovation Score?

Baoshan Iron & Steel Co., Ltd. has an Innovation Score of 57.0 out of 100 (top 5% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Baoshan Iron & Steel Co., Ltd.'s patent grant rate increasing or decreasing?

Baoshan Iron & Steel Co., Ltd.'s recent grant velocity is +80% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Baoshan Iron & Steel Co., Ltd.'s patents?

Baoshan Iron & Steel Co., Ltd.'s patents average 10.4 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 Baoshan Iron & Steel Co., Ltd. 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

Baoshan Iron & Steel Co., Ltd.

Q: What technology areas does Baoshan Iron & Steel Co., Ltd. focus on?

Baoshan Iron & Steel Co., Ltd.'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 116 patents. Grants appear in 78 CPC subclasses total.

USPTO PatentsView assignee record - 193 granted patents across 78 technology areas, recorded in grant years 2015–2025. 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, Baoshan ranks #2,053 of 49,997 tracked US assignees by granted-patent volume, with 193 patents across 78 technology areas.

#2,053
of 49,997 US assignees by volume: Top 5%
by Innovation Score (57.0/100): 10.4
avg claims per patent: +80%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2053 · Foreign Corporation #2,053 · 193 grants

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

GRANTS-MID 193 grants
TOP-DECILE #2,053/49,997
PHOTO-FINISH Afton Chemical
CPC-WIDE C21D · 78 areas
INNOV-PAR 57.0/100
CLAIMS-PAR 10.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +80% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Afton Chemical Corporation (±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.

Qualcomm Incorporated · highest

85
Baoshan Iron & Steel · this assignee

57
Hytto PTE · near

57
Kardion · near

57
Symbotic · near

57
Specialized Bicycle… · near

57
3D Lighting… · lowest

7

What this shows Baoshan's Innovation Score is 57.0/100 (top 5% 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.

How Baoshan's grant cadence moved

Between 2020–2024, Baoshan Iron & Steel Co., Ltd. received 117 grants versus 65 in 2015–2019 (+80% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2022 at 37 grants and bottomed in 2015 at 3. Lead class C21D accounts for 60.1% of the portfolio across 78 subclasses. Volume neighbours: Tongji University (#2,049) and Solventum Intellectual Properties Company (#2,057).

Baoshan's three-year grant acceleration

From 2019–2021 to 2022–2024, Baoshan Iron & Steel Co., Ltd. moved from 62 to 71 grants (1.15x 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 #877. See the growth leaderboard.

Tongji University

194
Tivo

194
Trimble Navigation

194
Afton Chemical

193
Hiwin

193
MCP IP

193
Pivotal Software

193
Solventum Intelle…

193
Baoshan Iron & St… ◀

193

What this shows Baoshan holds 193 patents at rank #2,053, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Baoshan

By rank, the assignees closest to #2,053 in granted patent volume.

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

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Baoshan, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (57 here).

Symbotic LLC 57 Hytto PTE. Ltd. 57 Kardion GMBH 57 Specialized Bicycle Components, Inc. 57

Similar claim depth

Nearest assignees by average claims per patent (10.4 here).

Tejas Networks Limited 10.4 avg Murakami Corporation 10.4 avg National University Corporation Hokkaido University 10.4 avg Oiles Corporation 10.4 avg

Baoshan's Innovation Score vs. every tracked assignee

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

57 Top 5% higher than 95% 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 · 2015–2025

Grants by year

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

View data table

Baoshan Iron & Steel Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	1.6%
2016	6	3.1%
2017	27	14.0%
2018	13	6.7%
2019	16	8.3%
2020	20	10.4%
2021	26	13.5%
2022	37	19.2%
2023	19	9.8%
2024	15	7.8%
2025partial year	11	5.7%

Which technologies does Baoshan Iron & Steel Co., Ltd. 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 116

C22C - Alloys 108

B21B - Rolling OF Metal 42

B22D - Casting OF METALS; Casting OF Other Substances BY THE Same Processes OR Devices 31

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 24

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 23

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 22

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 21

Y10T - Technical Subjects Covered BY Former US Classification 10

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 8

C21C - Processing OF Pig-iron, e.g. Refining, Manufacture OF Wrought-iron OR STEEL; Treatment IN Molten State OF Ferrous Alloys 6

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 6

B21C - Manufacture OF Metal Sheets, Wire, Rods, Tubes, Profiles OR Like Semi-manufactured Products Otherwise Than BY ROLLING; Auxiliary Operations Used IN Connection With Metal-working Without Essentially Removing Material 5

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 5

F27D - Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace 5

Top 15 of 78 technology areas

Where it ranks

Overall rank by patents

#2,053

of 49,997 tracked assignees

Innovation Score

57.0 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Baoshan Iron & Steel Co., Ltd.'s patent record in context - here's where to go next.

Baoshan Iron & Steel Co., Ltd.'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), 60.1% of its portfolio - see every assignee active in that class. Explore C21D
Ranked #2,053 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Baoshan Iron & Steel Co., Ltd. against Tongji University, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 57.0/100 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.