Where does Daechang Seat Co., LTD-Dongtan rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Daechang Seat Co., LTD-Dongtan ranks #10,589 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 Daechang Seat Co., LTD-Dongtan hold?

Daechang Seat Co., LTD-Dongtan holds 29 US utility patents granted between 2021 and 2025, spanning 10 technology areas.

What is Daechang Seat Co., LTD-Dongtan's Innovation Score?

Daechang Seat Co., LTD-Dongtan has an Innovation Score of 49.8 out of 100 (top 14% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Daechang Seat Co., LTD-Dongtan's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Daechang Seat Co., LTD-Dongtan.

What does claim depth mean for Daechang Seat Co., LTD-Dongtan's patents?

Daechang Seat Co., LTD-Dongtan's patents average 11.4 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 Daechang Seat Co., LTD-Dongtan 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

Daechang Seat Co., LTD-Dongtan

Q: What technology areas does Daechang Seat Co., LTD-Dongtan focus on?

Daechang Seat Co., LTD-Dongtan's top technology area is B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR) with 29 patents, ranking #57 of 645 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 29 granted patents across 10 technology areas, recorded in grant years 2021–2025. 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

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The verdict

According to USPTO PatentsView, Daechang ranks #10,589 of 49,997 tracked US assignees by granted-patent volume, with 29 patents across 10 technology areas.

#10,589
of 49,997 US assignees by volume: Top 14%
by Innovation Score (49.8/100): 11.4
avg claims per patent

USPTO PatentsView assignee plate

Corpus R10589 · Foreign Corporation #10,589 · 29 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-SMALL 29 grants
UPPER-Q #10,589/49,997
PHOTO-FINISH Daiichi Kigenso…
CPC-FOCUS B60N · 10 areas
INNOV-PAR 49.8/100
CLAIMS-PAR 11.4 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Daiichi Kigenso Kagaku Kogyo 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.

How Daechang’s 49.8 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 11.7 pts (24%) Velocity 20.0 pts (40%) Breadth 11.2 pts (23%) Claim depth 6.8 pts (14%)

Qualcomm Incorporated · highest

85
D5ai · near

50
Daechang Seat -Dongtan · this assignee

50
Quectel Wireless… · near

50
Warby Parker · near

50
Universite D'orleans · near

50
3D Lighting… · lowest

7

What this shows Daechang's Innovation Score is 49.8/100 (top 14% 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 Daechang?

Each dot is one of Daechang’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). Daechang’s own 11.4 claims/patent is at or below the 13.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Daechang's grants concentrate

Daechang Seat Co., LTD-Dongtan is a focused PatentsView assignee: 10 CPC subclasses with 100% of grants classified under B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR). Peak complete grant year is 2022 (10 grants) versus a trough of 2 in 2021. By volume, Daechang sits between Daiichi Kigenso Kagaku Kogyo Co., Ltd. and Dioxide Materials, Inc..

Daechang's three-year grant acceleration

Daechang Seat Co., LTD-Dongtan shows 24 grants in 2022–2024 against only 2 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.

Daiichi Kigenso K…

29
DAV

29
DIO

29
Dorf Ketal Chemic…

29
Data I/O

29
Depuy Internation…

29
Delta Design

29
Dioxide Materials

29
Daechang Seat -do… ◀

29

What this shows Daechang holds 29 patents at rank #10,593, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Daechang

By rank, the assignees closest to #10,593 in granted patent volume.

Leaders in B60N (Seats Specially Adapted FOR Vehicles)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Daechang, neither rank-band nor same-CPC leaders (those blocks stay above). In B60N (Seats Specially Adapted FOR Vehicles), Daechang ranks #57 of 645 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (50 here).

Quectel Wireless Solutions Co., Ltd. 50 D5ai LLC 50 Warby Parker Inc. 50 Universite D'orleans 50

Daechang's Innovation Score vs. every tracked assignee

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

50 Top 14% higher than 86% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Daechang Seat Co., LTD-Dongtan patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	2	6.9%
2022	10	34.5%
2023	8	27.6%
2024	6	20.7%
2025partial year	3	10.3%

Which technologies does Daechang Seat Co., LTD-Dongtan patent most?

B60N - Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR 29

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 5

A47C - CHAIRS; SOFAS; Beds 5

F16H - Gearing 1

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 1

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

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 1

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 1

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 1

F16G - Belts, Cables, OR Ropes, Predominantly Used FOR Driving PURPOSES; CHAINS; Fittings Predominantly Used Therefor 1

Top 10 of 10 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

Daechang Seat Co., LTD-Dongtan's patent record in context - here's where to go next.

Daechang Seat Co., LTD-Dongtan's lead technology class is B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR), 100% of its portfolio - see every assignee active in that class. Explore B60N
Ranked #10,589 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Daechang Seat Co., LTD-Dongtan against Daiichi Kigenso Kagaku Kogyo Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.8/100 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.