Where does Doosan Heavy Industries & Construction Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Doosan Heavy Industries & Construction Co., Ltd. ranks #1,197 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 Doosan Heavy Industries & Construction Co., Ltd. hold?

Doosan Heavy Industries & Construction Co., Ltd. holds 354 US utility patents granted between 2015 and 2024, spanning 128 technology areas.

What is Doosan Heavy Industries & Construction Co., Ltd.'s Innovation Score?

Doosan Heavy Industries & Construction Co., Ltd. has an Innovation Score of 55.1 out of 100 (top 7% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Doosan Heavy Industries & Construction Co., Ltd.'s patent grant rate increasing or decreasing?

Doosan Heavy Industries & Construction Co., Ltd.'s recent grant velocity is +68% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Doosan Heavy Industries & Construction Co., Ltd.'s patents?

Doosan Heavy Industries & Construction Co., Ltd.'s patents average 15.2 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

Doosan Heavy Industries & Construction Co., Ltd.

Q: What technology areas does Doosan Heavy Industries & Construction Co., Ltd. focus on?

Doosan Heavy Industries & Construction Co., Ltd.'s top technology area is F05D (Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants) with 147 patents. Grants appear in 128 CPC subclasses total.

Q: How is the Doosan Heavy Industries & Construction 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 - 354 granted patents across 128 technology areas, recorded in grant years 2015–2024. 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: F05D (Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Doosan ranks #1,197 of 49,997 tracked US assignees by granted-patent volume, with 354 patents across 128 technology areas.

#1,197
of 49,997 US assignees by volume: Top 7%
by Innovation Score (55.1/100): 15.2
avg claims per patent: +68%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1197 · Foreign Corporation #1,197 · 354 grants

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

GRANTS-MID 354 grants
TOP-DECILE #1,197/49,997
PHOTO-FINISH ABB Technology
CPC-WIDE F05D · 128 areas
INNOV-PAR 55.1/100
CLAIMS-RICH 15.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +68% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: ABB Technology AG (±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
Brandeis University · near

55
Daimler · near

55
Doosan Heavy… · this assignee

55
Monosol · near

55
TTP · near

55
3D Lighting… · lowest

7

What this shows Doosan's Innovation Score is 55.1/100 (top 7% 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 Doosan's grant cadence moved

Between 2020–2024, Doosan Heavy Industries & Construction Co., Ltd. received 222 grants versus 132 in 2015–2019 (+68% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2020 at 129 grants and bottomed in 2023 at 3. Lead class F05D accounts for 41.5% of the portfolio across 128 subclasses. Volume neighbours: Shiseido Company, Limited (#1,193) and Applied Materials Israel Ltd. (#1,201).

Doosan's three-year grant acceleration

From 2019–2021 to 2022–2024, Doosan Heavy Industries & Construction Co., Ltd. moved from 259 to 27 grants (0.10x 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 #3,171. See the growth leaderboard.

Shiseido

356
Volvo Constructio…

355
ABB Technology

354
Audio-technica

354
Headway

354
Hunter Douglas

354
Doosan Heavy Indu… ◀

354
AIR Products AND…

353
Applied Materials…

353

What this shows Doosan holds 354 patents at rank #1,197, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Doosan

By rank, the assignees closest to #1,197 in granted patent volume.

Leaders in F05D (Indexing Scheme FOR Aspects Relating TO Non-positive-disp…)

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

Assignees with similar portfolio profiles

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

Similar innovation score

Nearest assignees by Innovation Score (55 here).

Daimler AG 55 Brandeis University 55 Monosol, LLC 55 TTP Plc 55

Similar claim depth

Nearest assignees by average claims per patent (15.2 here).

Basf Coatings GMBH 15.2 avg Beijing BOE Display Technology Co., Ltd. 15.2 avg Perkins Engines Company Limited 15.2 avg SK Biopharmaceuticals Co., Ltd. 15.2 avg

Doosan's Innovation Score vs. every tracked assignee

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

55 Top 7% higher than 93% 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 · 2015–2024

Grants by year

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

View data table

Doosan Heavy Industries & Construction Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	1.1%
2016	10	2.8%
2017	19	5.4%
2018	35	9.9%
2019	64	18.1%
2020	129	36.4%
2021	66	18.6%
2022	21	5.9%
2023	3	0.8%
2024	3	0.8%

Which technologies does Doosan Heavy Industries & Construction Co., Ltd. patent most?

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 147

F01D - Non-positive Displacement Machines OR Engines, e.g. Steam Turbines 138

B01D - Separation 57

F02C - Gas-turbine PLANTS; AIR Intakes FOR Jet-propulsion PLANTS; Controlling Fuel Supply IN Air-breathing Jet-propulsion Plants 56

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 54

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 51

F23R - Generating Combustion Products OF High Pressure OR High Velocity, e.g. Gas-turbine Combustion Chambers 32

F01K - Steam Engine PLANTS; Steam ACCUMULATORS; Engine Plants NOT Otherwise Provided FOR; Engines Using Special Working Fluids OR Cycles 30

F04D - Non-positive-displacement Pumps 21

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 21

Y02T - Climate Change Mitigation Technologies Related TO Transportation 20

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 18

F03D - Wind Motors 17

F05B - Indexing Scheme Relating TO Wind, Spring, Weight, Inertia OR Like Motors, TO Machines OR Engines FOR Liquids Covered BY Subclasses F03b, F03d AND F03g 15

H02K - Dynamo-electric Machines 15

Top 15 of 128 technology areas

Where it ranks

Overall rank by patents

#1,197

of 49,997 tracked assignees

Innovation Score

55.1 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

Doosan Heavy Industries & Construction Co., Ltd.'s patent record in context - here's where to go next.

Doosan Heavy Industries & Construction Co., Ltd.'s lead technology class is F05D (Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants), 41.5% of its portfolio - see every assignee active in that class. Explore F05D
Ranked #1,197 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Doosan Heavy Industries & Construction Co., Ltd. against Shiseido Company, Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 55.1/100 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.