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

According to USPTO PatentsView (2015–2025 granted utility patents), DAS Co., Ltd. ranks #6,232 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 DAS Co., Ltd. hold?

DAS Co., Ltd. holds 54 US utility patents granted between 2015 and 2025, spanning 12 technology areas.

What is DAS Co., Ltd.'s Innovation Score?

DAS Co., Ltd. has an Innovation Score of 45.7 out of 100 (top 22% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does DAS Co., Ltd. focus on?

DAS Co., Ltd.'s top technology area is B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR) with 47 patents, ranking #40 of 645 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

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

DAS Co., Ltd.'s recent grant velocity is +47% 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 DAS Co., Ltd.'s patents?

DAS Co., Ltd.'s patents average 9.3 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 DAS 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

DAS Co., Ltd.

USPTO PatentsView assignee record - 54 granted patents across 12 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: B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, DAS ranks #6,232 of 49,997 tracked US assignees by granted-patent volume, with 54 patents across 12 technology areas.

#6,232
of 49,997 US assignees by volume: Top 22%
by Innovation Score (45.7/100): 9.3
avg claims per patent: +47%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R6232 · Foreign Corporation #6,232 · 54 grants

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

GRANTS-SMALL 54 grants
UPPER-Q #6,232/49,997
PHOTO-FINISH Classic Brands
CPC-FOCUS B60N · 12 areas
INNOV-PAR 45.7/100
CLAIMS-PAR 9.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +47% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Classic Brands, 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 DAS’s 45.7 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 13.8 pts (30%) Velocity 14.1 pts (31%) Breadth 12.2 pts (27%) Claim depth 5.6 pts (12%)

Qualcomm Incorporated · highest

85
Astronics Advanced… · near

46
CT Energy · near

46
DAS · this assignee

46
Global Industrial… · near

46
The Kansai Electric… · near

46
3D Lighting… · lowest

7

What this shows DAS's Innovation Score is 45.7/100 (top 22% 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 DAS?

Each dot is one of DAS’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). DAS’s own 9.3 claims/patent is at or below the 15.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where DAS's grants concentrate

DAS Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 87% of grants classified under B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR). Peak complete grant year is 2024 (10 grants) versus a trough of 1 in 2015. By volume, DAS sits between Classic Brands, LLC and Easebon Services Limited.

DAS's three-year grant acceleration

DAS Co., Ltd. shows 19 grants in 2022–2024 against only 9 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.

Classic Brands

54
Comau S p A

54
Constellation Pha…

54
Dai-ichi Kogyo Se…

54
Debiotech

54
Distech Controls

54
Delta (Thailand)…

54
Easebon Services

54
DAS ◀

54

What this shows DAS holds 54 patents at rank #6,232, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near DAS

By rank, the assignees closest to #6,232 in granted patent volume.

Leaders in B60N (Seats Specially Adapted FOR Vehicles)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for DAS, neither rank-band nor same-CPC leaders (those blocks stay above). In B60N (Seats Specially Adapted FOR Vehicles), DAS ranks #40 of 645 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (46 here).

Astronics Advanced Electronic Systems Corp. 46 The Kansai Electric Power Co., Inc. 46 Global Industrial Distribution Inc. 46 CT Energy Ltd. 46

Similar claim depth

Nearest assignees by average claims per patent (9.3 here).

National University Corporation Gunma University 9.3 avg Tokuyama Corporation 9.3 avg China University OF Petroleum (EAST CHINA) 9.3 avg Murata Machinery, Ltd. 9.3 avg

DAS's Innovation Score vs. every tracked assignee

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

46 Top 22% higher than 78% 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 · 2015–2025

Grants by year

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

View data table

DAS Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	1.9%
2016	5	9.3%
2017	5	9.3%
2018	3	5.6%
2019	3	5.6%
2020	4	7.4%
2021	2	3.7%
2022	3	5.6%
2023	6	11.1%
2024	10	18.5%
2025partial year	12	22.2%

Which technologies does DAS Co., Ltd. patent most?

B60N - Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR 47

H02K - Dynamo-electric Machines 4

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 3

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 3

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 2

F16H - Gearing 2

B64D - Equipment FOR Fitting IN OR TO AIRCRAFT; Flight SUITS; PARACHUTES; Arrangement OR Mounting OF Power Plants OR Propulsion Transmissions IN Aircraft 1

Y10T - Technical Subjects Covered BY Former US Classification 1

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 1

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 1

B62D - Motor VEHICLES; Trailers 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

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

DAS Co., Ltd.'s lead technology class is B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR), 87% of its portfolio - see every assignee active in that class. Explore B60N
Ranked #6,232 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare DAS Co., Ltd. against Classic Brands, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.7/100 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.