Where does Doosan Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Doosan Corporation ranks #5,933 of 50,000 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 Corporation hold?

Doosan Corporation holds 57 US utility patents granted between 2015 and 2025, spanning 42 technology areas.

What is Doosan Corporation's Innovation Score?

Doosan Corporation has an Innovation Score of 45.1 out of 100 (top 24% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Doosan Corporation focus on?

Doosan Corporation's top technology area is H10K (ORGANIC ELECTRIC SOLID-STATE DEVICES) with 13 patents. Grants appear in 42 CPC subclasses total.

Is Doosan Corporation's patent grant rate increasing or decreasing?

Doosan Corporation's recent grant velocity is -47% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Doosan Corporation's patents?

Doosan Corporation's patents average 8.8 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 Corporation 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 Corporation

USPTO PatentsView assignee record - 57 granted patents across 42 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: H10K (ORGANIC ELECTRIC SOLID-STATE DEVICES).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Doosan ranks #5,933 of 50,000 tracked US assignees by granted-patent volume, with 57 patents across 42 technology areas.

#5,933
of 50,000 US assignees by volume: Top 24%
by Innovation Score (45.1/100): 8.8
avg claims per patent: -47%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5933 · Foreign Corporation #5,933 · 57 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 57 grants
UPPER-Q #5,933/50,000
PHOTO-FINISH DAEWOONG PHARMACEUTI…
CPC-WIDE H10K · 42 areas
INNOV-PAR 45.1/100
CLAIMS-PAR 8.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -47% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Daewoong Pharmaceutical 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
BASF AGRO B v · near

45
Bradford · near

45
Doosan · this assignee

45
Euroimmun Medizinisc… · near

45
K-FEE System · near

45
3D Lighting Innovati… · lowest

7

What this shows Doosan Corporation stamps GRANTS-SMALL, UPPER-Q, PHOTO-FINISH, CPC-WIDE, INNOV-PAR, CLAIMS-PAR, TYPE-FRNCORP, VEL-DROP, BOOK-FULL. Volume places it #5,933 of 50,000; Innovation Score 45.1/100 sits in the top 24% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is Daewoong Pharmaceutical Co., Ltd. (±0 grants).

Portfolio overview

Doosan Corporation has been granted 57 US utility patents between 2015 and 2025, placing Doosan Corporation at #5,933 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 42 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.8 claims per patent with primary concentration in H10K (ORGANIC ELECTRIC SOLID-STATE DEVICES). As a Foreign Corporation, Doosan Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Doosan sits between Daewoong Pharmaceutical Co., Ltd. (57 patents, rank #5,928) and Efficient Power Conversion Corporation (57 patents, rank #5,936) - the closest US assignees by grant volume. The composite Innovation Score of 45.1/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 18 grants, compared with 34 in the 2015–2019 window, a -47% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Doosan Corporation's 8.8 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 42 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Daewoong Pharmace…

57
Daikin Europe

57
Deliflor Royaltie…

57
Dinkle Electric M…

57
Dentsply IH AB

57
EDAN Instruments

57
ETEL

57
Efficient Power C…

57
Doosan ◀

57

What this shows Doosan holds 57 patents at rank #5,932, 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 #5,932 in granted patent volume.

Leaders in H10K (Organic Electric Solid-state Devices)

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 (45 here).

Bradford Company 45 Euroimmun Medizinische Labordiagnostika Ag 45 BASF AGRO B.v. 45 K-FEE System Gmbh 45

Similar claim depth

Nearest assignees by average claims per patent (8.8 here).

Ocean University OF China 8.8 avg Fujimori Kogyo Co., Ltd. 8.8 avg Guangzhou Institute OF Energy Conversion, Chinese Academy OF Sciences 8.8 avg Johnson & Johnson Consumer Inc. 8.8 avg

Doosan's Innovation Score vs. every tracked assignee

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

45 Top 24% higher than 76% 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

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

Doosan Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	6	10.5%
2016	3	5.3%
2017	7	12.3%
2018	13	22.8%
2019	5	8.8%
2020	6	10.5%
2021	5	8.8%
2022	3	5.3%
2023	2	3.5%
2024	2	3.5%
2025partial year	5	8.8%

Which technologies does Doosan Corporation patent most?

H10K - ORGANIC ELECTRIC SOLID-STATE DEVICES 13

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 12

B66F - HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD 12

C07D - HETEROCYCLIC COMPOUNDS 10

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 9

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 7

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 7

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 6

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 6

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 6

C09J - ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES 5

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 5

F15B - SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 4

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 3

B60L - PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES ; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES ; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL ; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICL 3

Top 15 of 42 technology areas

Where it ranks

Overall rank by patents

#5,933

of 50,000 tracked assignees

Innovation Score

45.1 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

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.