Where does Doosan Enerbnlity Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Doosan Enerbnlity Co., Ltd. ranks #46,263 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 Enerbnlity Co., Ltd. hold?

Doosan Enerbnlity Co., Ltd. holds 5 US utility patents granted between 2023 and 2023, spanning 10 technology areas.

What is Doosan Enerbnlity Co., Ltd.'s Innovation Score?

Doosan Enerbnlity Co., Ltd. has an Innovation Score of 48.3 out of 100 (top 17% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Doosan Enerbnlity Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Doosan Enerbnlity Co., Ltd..

What does claim depth mean for Doosan Enerbnlity Co., Ltd.'s patents?

Doosan Enerbnlity Co., Ltd.'s patents average 18.2 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.

How is the Doosan Enerbnlity 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

Doosan Enerbnlity Co., Ltd.

Q: What technology areas does Doosan Enerbnlity Co., Ltd. focus on?

Doosan Enerbnlity Co., Ltd.'s top technology area is F01D (Non-positive Displacement Machines OR Engines, e.g. Steam Turbines) with 4 patents. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 10 technology areas, recorded in grant years 2023–2023. 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: F01D (Non-positive Displacement Machines OR Engines, e.g. Steam Turbines).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Doosan ranks #46,263 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 10 technology areas.

#46,263
of 49,997 US assignees by volume: Top 17%
by Innovation Score (48.3/100): 18.2
avg claims per patent

USPTO PatentsView assignee plate

Corpus R46263 · Foreign Corporation #46,263 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,263/49,997
PHOTO-FINISH Dongguk University…
CPC-FOCUS F01D · 10 areas
INNOV-PAR 48.3/100
CLAIMS-RICH 18.2 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2023 · 1y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Dongguk University Gyeongju Campus Industry-academy Cooperation Foundation (±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
Doosan Enerbnlity · this assignee

48
3D Lighting… · lowest

7

What this shows Doosan's Innovation Score is 48.3/100 (top 17% 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 Doosan's grants concentrate

Doosan Enerbnlity Co., Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 80% of grants classified under F01D (Non-positive Displacement Machines OR Engines, e.g. Steam Turbines). By volume, Doosan sits between Dongguk University Gyeongju Campus Industry-academy Cooperation Foundation and Doria International Inc.

Doosan's three-year grant acceleration

Doosan Enerbnlity Co., Ltd. shows 5 grants in 2022–2024 against only 0 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.

Dongguk Universit…

5
Dongshin Polymer

5
Dongwoo HST

5
Dongwoun Industri…

5
Doosan Solus

5
DOPE Security

5
Dopple IP B V

5
Doria Internation…

5
Doosan Enerbnlity ◀

5

What this shows Doosan holds 5 patents at rank #46,145, 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 #46,145 in granted patent volume.

Leaders in F01D (Non-positive Displacement Machines OR Engines)

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

Doosan's Innovation Score vs. every tracked assignee

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

48 Top 17% higher than 83% 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

Grants by year

Teal-shaded recent years (2020–present) versus the 2023–2019 baseline. Full figures in the table below.

View data table

Doosan Enerbnlity Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	5	100.0%

Which technologies does Doosan Enerbnlity Co., Ltd. patent most?

F01D - Non-positive Displacement Machines OR Engines, e.g. Steam Turbines 4

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 3

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 1

G06N - Computing Arrangements Based ON Specific Computational Models 1

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 1

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

F02C - Gas-turbine PLANTS; AIR Intakes FOR Jet-propulsion PLANTS; Controlling Fuel Supply IN Air-breathing Jet-propulsion Plants 1

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 1

F01K - Steam Engine PLANTS; Steam ACCUMULATORS; Engine Plants NOT Otherwise Provided FOR; Engines Using Special Working Fluids OR Cycles 1

Top 10 of 10 technology areas

Where it ranks

Overall rank by patents

#46,263

of 49,997 tracked assignees

Innovation Score

48.3 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

Doosan Enerbnlity Co., Ltd.'s patent record in context - here's where to go next.

Doosan Enerbnlity Co., Ltd.'s lead technology class is F01D (Non-positive Displacement Machines OR Engines, e.g. Steam Turbines), 80% of its portfolio - see every assignee active in that class. Explore F01D
Ranked #46,263 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Doosan Enerbnlity Co., Ltd. against Dongguk University Gyeongju Campus Industry-academy Cooperation Foundation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 48.3/100 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.