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

According to USPTO PatentsView (2015–2025 granted utility patents), Doosan Machine Tools Co., Ltd. ranks #8,781 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 Machine Tools Co., Ltd. hold?

Doosan Machine Tools Co., Ltd. holds 36 US utility patents granted between 2016 and 2022, spanning 12 technology areas.

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

Doosan Machine Tools Co., Ltd. has an Innovation Score of 31.0 out of 100 (36th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Doosan Machine Tools Co., Ltd.'s recent grant velocity is +12% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

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

Doosan Machine Tools Co., Ltd.'s patents average 6.1 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 Machine Tools 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 Machine Tools Co., Ltd.

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

Doosan Machine Tools Co., Ltd.'s top technology area is B23Q (Details, Components, OR Accessories FOR Machine Tools, e.g. Arrangements FOR Copying OR Controlling ; Machine Tools IN General Characterised BY THE Construction OF Particular Details OR COMPONENTS; Combinations OR Associations OF Metal-working Machines, NOT Directed TO A Particular Result) with 14 patents, ranking #39 of 613 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

USPTO PatentsView assignee record - 36 granted patents across 12 technology areas, recorded in grant years 2016–2022. 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: B23Q (Details, Components, OR Accessories FOR Machine Tools, e.g. Arrangements FOR Copying OR Controlling ; Machine Tools IN General Characterised BY THE Construction OF Particular Details OR COMPONENTS; Co).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Doosan ranks #8,781 of 49,997 tracked US assignees by granted-patent volume, with 36 patents across 12 technology areas.

#8,781
of 49,997 US assignees by volume: 36th percentile
by Innovation Score (31.0/100): 6.1
avg claims per patent: +12%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8781 · Foreign Corporation #8,781 · 36 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-SMALL 36 grants
UPPER-Q #8,781/49,997
PHOTO-FINISH Cyber IP Holdings
CPC-FOCUS B23Q · 12 areas
INNOV-THIN 31.0/100
CLAIMS-SPARSE 6.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +12% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Cyber IP Holdings, LLC (±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.

How Doosan’s 31.0 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 12.5 pts (40%) Velocity 2.6 pts (8%) Breadth 12.2 pts (39%) Claim depth 3.7 pts (12%)

Qualcomm Incorporated · highest

85
Renco World · near

31
Cequence Security · near

31
Doosan Machine Tools · this assignee

31
Shanghai Pharmaceuti… · near

31
D3D · near

31
3D Lighting… · lowest

7

What this shows Doosan's Innovation Score is 31.0/100 (36th percentile 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.

Does more volume mean deeper claims for Doosan?

Each dot is one of Doosan’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Doosan’s own 6.1 claims/patent is at or below the 14.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Doosan vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Doosan's grants concentrate

Doosan Machine Tools Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 38.9% of grants classified under B23Q (Details, Components, OR Accessories FOR Machine Tools, e.g. Arrangements FOR Copying OR Controlling ; Machine Tools IN General Characterised BY THE Construction OF Particular Details OR COMPONENTS; Co). Peak complete grant year is 2021 (12 grants) versus a trough of 1 in 2016. By volume, Doosan sits between Cyber IP Holdings, LLC and Diehl AKO Stiftung & Co. KG.

Doosan's three-year grant acceleration

Doosan Machine Tools Co., Ltd. shows 7 grants in 2022–2024 against only 18 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.

Cyber IP Holdings

36
D & D Group PTY

36
Daikin Applied Am…

36
Dedon

36
Duke Energy

36
Daniel Measuremen…

36
Development Cente…

36
Diehl AKO Stiftun…

36
Doosan Machine To… ◀

36

What this shows Doosan holds 36 patents at rank #8,778, 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 #8,778 in granted patent volume.

Leaders in B23Q (Details)

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). In B23Q (Details), Doosan ranks #39 of 613 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (31 here).

Shanghai Pharmaceuticals Holding Co., Ltd. 31 Cequence Security, Inc. 31 D3D Technologies, Inc. 31 Renco World Corporation 31

Doosan's Innovation Score vs. every tracked assignee

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

31 36th percentile higher than 36% 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 · 2016–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Doosan Machine Tools Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	2.8%
2017	6	16.7%
2018	4	11.1%
2019	6	16.7%
2021	12	33.3%
2022	7	19.4%

Which technologies does Doosan Machine Tools Co., Ltd. patent most?

B23Q - Details, Components, OR Accessories FOR Machine Tools, e.g. Arrangements FOR Copying OR Controlling ; Machine Tools IN General Characterised BY THE Construction OF Particular Details OR COMPONENTS; Combinations OR Associations OF Metal-working Machines, NOT Directed TO A Particular Result 14

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 14

Y10T - Technical Subjects Covered BY Former US Classification 5

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

B23C - Milling 4

B23B - TURNING; Boring 3

G06F - Electric Digital Data Processing 2

B23D - PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; Like Operations FOR Working Metal BY Removing Material, NOT Otherwise Provided FOR 1

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 1

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 1

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 1

F16H - Gearing 1

Top 12 of 12 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

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

Doosan Machine Tools Co., Ltd.'s lead technology class is B23Q (Details, Components, OR Accessories FOR Machine Tools, e.g. Arrangements FOR Copying OR Controlling ; Machine Tools IN General Characterised BY THE Construction OF Particular Details OR COMPONENTS; Co), 38.9% of its portfolio - see every assignee active in that class. Explore B23Q
Ranked #8,781 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Doosan Machine Tools Co., Ltd. against Cyber IP Holdings, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.0/100 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.