Where does China Construction Steel Structure Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), China Construction Steel Structure Co., Ltd. ranks #31,194 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 China Construction Steel Structure Co., Ltd. hold?

China Construction Steel Structure Co., Ltd. holds 8 US utility patents granted between 2019 and 2022, spanning 21 technology areas.

What is China Construction Steel Structure Co., Ltd.'s Innovation Score?

China Construction Steel Structure Co., Ltd. has an Innovation Score of 35.3 out of 100 (top 50% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is China Construction Steel Structure Co., Ltd.'s patent grant rate increasing or decreasing?

China Construction Steel Structure Co., Ltd.'s recent grant velocity is +200% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for China Construction Steel Structure Co., Ltd.'s patents?

China Construction Steel Structure Co., Ltd.'s patents average 12.5 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

China Construction Steel Structure Co., Ltd.

Q: What technology areas does China Construction Steel Structure Co., Ltd. focus on?

China Construction Steel Structure Co., Ltd.'s top technology area is E04H (Buildings OR Like Structures FOR Particular PURPOSES; Swimming OR Splash Baths OR POOLS; MASTS; FENCING; Tents OR Canopies, IN General) with 2 patents. Grants appear in 21 CPC subclasses total.

Q: How is the China Construction Steel Structure 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 PatentsView assignee record - 8 granted patents across 21 technology areas, recorded in grant years 2019–2022. 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: E04H (Buildings OR Like Structures FOR Particular PURPOSES; Swimming OR Splash Baths OR POOLS; MASTS; FENCING; Tents OR Canopies, IN General).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, China ranks #31,194 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 21 technology areas.

#31,194
of 49,997 US assignees by volume: Top 50%
by Innovation Score (35.3/100): 12.5
avg claims per patent: +200%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R31194 · Foreign Corporation #31,194 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #31,194/49,997
PHOTO-FINISH Chengdu Aircraft…
CPC-FOCUS E04H · 21 areas
INNOV-THIN 35.3/100
CLAIMS-RICH 12.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +200% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Chengdu Aircraft Industrial (GROUP) Co., Ltd. (±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
China Construction… · this assignee

35
3D Lighting… · lowest

7

What this shows China's Innovation Score is 35.3/100 (top 50% 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.

Where China's grants concentrate

China Construction Steel Structure Co., Ltd. is a focused PatentsView assignee: 21 CPC subclasses with 25% of grants classified under E04H (Buildings OR Like Structures FOR Particular PURPOSES; Swimming OR Splash Baths OR POOLS; MASTS; FENCING; Tents OR Canopies, IN General). Peak complete grant year is 2022 (3 grants) versus a trough of 1 in 2020. By volume, China sits between Chengdu Aircraft Industrial (GROUP) Co., Ltd. and Chinese Academy OF Inspection AND Quarantine.

China's three-year grant acceleration

China Construction Steel Structure Co., Ltd. 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.

Chengdu Aircraft…

8
Chengdu Yefan Sci…

8
Chilisin

8
China Constructio…

8
China General Nuc…

8
China National Ri…

8
China Resources M…

8
Chinese Academy O…

8
China Constructio… ◀

8

What this shows China holds 8 patents at rank #31,154, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near China

By rank, the assignees closest to #31,154 in granted patent volume.

Leaders in E04H (Buildings OR Like Structures FOR Particular Purposes)

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

China's Innovation Score vs. every tracked assignee

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

35 Top 50% higher than 50% 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 · 2019–2022

Grants by year

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

View data table

China Construction Steel Structure Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	2	25.0%
2020	1	12.5%
2021	2	25.0%
2022	3	37.5%

Which technologies does China Construction Steel Structure Co., Ltd. patent most?

E04H - Buildings OR Like Structures FOR Particular PURPOSES; Swimming OR Splash Baths OR POOLS; MASTS; FENCING; Tents OR Canopies, IN General 2

E04G - SCAFFOLDING; FORMS; SHUTTERING; Building Implements OR Aids, OR Their USE; Handling Building Materials ON THE SITE; Repairing, Breaking-up OR Other Work ON Existing Buildings 2

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 1

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 1

H02S - Generation OF Electric Power BY Conversion OF Infrared Radiation, Visible Light OR Ultraviolet Light, e.g. Using Photovoltaic [PV] Modules 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 1

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 1

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 1

E02B - Hydraulic Engineering 1

E04B - General Building CONSTRUCTIONS; Walls, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; Insulation OR Other Protection OF Buildings 1

E02D - FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures 1

G06F - Electric Digital Data Processing 1

E01C - Construction OF, OR Surfaces FOR, Roads, Sports Grounds, OR THE LIKE; Machines OR Auxiliary Tools FOR Construction OR Repair 1

E01D - Construction OF Bridges, ; Elevated ROADWAYS; OR VIADUCTS; Assembly OF Bridges 1

Top 15 of 21 technology areas

Where it ranks

Overall rank by patents

#31,194

of 49,997 tracked assignees

Innovation Score

35.3 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

China Construction Steel Structure Co., Ltd.'s patent record in context - here's where to go next.

China Construction Steel Structure Co., Ltd.'s lead technology class is E04H (Buildings OR Like Structures FOR Particular PURPOSES; Swimming OR Splash Baths OR POOLS; MASTS; FENCING; Tents OR Canopies, IN General), 25% of its portfolio - see every assignee active in that class. Explore E04H
Ranked #31,194 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare China Construction Steel Structure Co., Ltd. against Chengdu Aircraft Industrial (GROUP) Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 35.3/100 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.