USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Doosan Enerbnlity Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 10 technology areas, active 2023–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F01D (NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

18.2

Avg claims per patent

5-year filing velocity

The verdict

Doosan holds 5 US patents across 10 technology areas, rank #46,145 of 50,000 tracked assignees.

#46,145
of 50,000 US assignees by volume: Top 17%
by Innovation Score (48.3/100): 18.2
avg claims per patent

Portfolio overview

Doosan Enerbnlity Co., Ltd. has been granted 5 US utility patents between 2023 and 2023, placing Doosan Enerbnlity Co., Ltd. at rank #46,145 across all assignees tracked by PlainPatent. This portfolio spans 10 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.2 claims per patent with primary concentration in F01D (NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES). As a Foreign Corporation, Doosan Enerbnlity Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Doosan sits between Dongguk University Gyeongju Campus Industry-academy Cooperation Foundation (5 patents, rank #46,141) and Doria International Inc (5 patents, rank #46,149) - the closest US assignees by grant volume. The composite Innovation Score of 48.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Historical data spans 2023 through 2023, with 5 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Doosan Enerbnlity Co., Ltd.'s 18.2 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 10 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Doosan Enerbnlity Co., Ltd. against peers pursuing similar technology classes.

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, filing velocity, technology breadth, and claim depth (0–100)

48 Top 17% higher than 83% of 50,000 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

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Where it ranks

Overall rank by patents

#46,145

Across all 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?

Frequently Asked Questions

How many patents does Doosan Enerbnlity Co., Ltd. hold?

Doosan Enerbnlity Co., Ltd. holds 5 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

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. The company has filed patents in 10 CPC subclasses total.

Is Doosan Enerbnlity Co., Ltd.'s patent filing 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 falls within the standard range, providing solid legal coverage.

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.

How to use this portfolio

Doosan's 5 grants land it in the top 17% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Doosan ranks #46,145 of 50,000. Top 50 holders
Most of this portfolio concentrates in F01D - see who else leads that technology area. F01D leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.