Where does Daye Special Steel Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Daye Special Steel Co., Ltd. ranks #39,760 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 Daye Special Steel Co., Ltd. hold?

Daye Special Steel Co., Ltd. holds 6 US utility patents granted between 2023 and 2025, spanning 11 technology areas.

What is Daye Special Steel Co., Ltd.'s Innovation Score?

Daye Special Steel Co., Ltd. has an Innovation Score of 44.0 out of 100 (top 27% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Daye Special Steel Co., Ltd. focus on?

Daye Special Steel Co., Ltd.'s top technology area is C22C (Alloys) with 4 patents, ranking #336 of 948 assignees active in that subclass. Grants appear in 11 CPC subclasses total.

Is Daye Special Steel Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Daye Special Steel Co., Ltd..

What does claim depth mean for Daye Special Steel Co., Ltd.'s patents?

Daye Special Steel Co., Ltd.'s patents average 9.2 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 Daye Special Steel 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

Daye Special Steel Co., Ltd.

USPTO PatentsView assignee record - 6 granted patents across 11 technology areas, recorded in grant years 2023–2025. 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: C22C (Alloys).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Daye ranks #39,760 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 11 technology areas.

#39,760
of 49,997 US assignees by volume: Top 27%
by Innovation Score (44.0/100): 9.2
avg claims per patent

USPTO PatentsView assignee plate

Corpus R39760 · Foreign Corporation #39,760 · 6 grants

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

GRANTS-MICRO 6 grants
LOWER-Q #39,760/49,997
PHOTO-FINISH Datavault AI
CPC-FOCUS C22C · 11 areas
INNOV-PAR 44.0/100
CLAIMS-PAR 9.2 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2025 · 3y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Datavault AI Inc. (±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 Daye’s 44.0 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 6.7 pts (15%) Velocity 20.0 pts (46%) Breadth 11.7 pts (27%) Claim depth 5.5 pts (13%)

Qualcomm Incorporated · highest

85
Daye Special Steel · this assignee

44
3D Lighting… · lowest

7

What this shows Daye's Innovation Score is 44.0/100 (top 27% 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 Daye?

Each dot is one of Daye’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). Daye’s own 9.2 claims/patent is at or below the 15.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Daye's grants concentrate

Daye Special Steel Co., Ltd. is a focused PatentsView assignee: 11 CPC subclasses with 66.7% of grants classified under C22C (Alloys). Peak complete grant year is 2023 (2 grants) versus a trough of 1 in 2024. By volume, Daye sits between Datavault AI Inc. and Dbsi, Inc..

Daye's three-year grant acceleration

Daye Special Steel Co., Ltd. shows 3 grants in 2022–2024 against only 0 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.

Datavault AI

6
Davey Bickford

6
Daxor

6
DAY Three Labs Ma…

6
Dbappsecurity

6
DBI Holding

6
DBK Industries

6
Dbsi

6
Daye Special Steel ◀

6

What this shows Daye holds 6 patents at rank #39,748, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Daye

By rank, the assignees closest to #39,748 in granted patent volume.

Leaders in C22C (Alloys)

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

Daye's Innovation Score vs. every tracked assignee

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

44 Top 27% higher than 73% 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 · 2023–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2023–2019 baseline. Full figures in the table below.

View data table

Daye Special Steel Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	2	33.3%
2024	1	16.7%
2025partial year	3	50.0%

Which technologies does Daye Special Steel Co., Ltd. patent most?

C22C - Alloys 4

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 2

C21C - Processing OF Pig-iron, e.g. Refining, Manufacture OF Wrought-iron OR STEEL; Treatment IN Molten State OF Ferrous Alloys 2

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

B21B - Rolling OF Metal 1

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 1

G06V - Image OR Video Recognition OR Understanding 1

G06F - Electric Digital Data Processing 1

C23F - Non-mechanical Removal OF Metallic Material From Surface ; Inhibiting Corrosion OF Metallic Material OR Incrustation IN GENERAL; Multi-step Processes FOR Surface Treatment OF Metallic Material Involving AT Least ONE Process Provided FOR IN Class C23 AND AT Least ONE Process Covered BY Subclass C21d 1

G06T - Image Data Processing OR Generation, IN General 1

Top 11 of 11 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

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

Daye Special Steel Co., Ltd.'s lead technology class is C22C (Alloys), 66.7% of its portfolio - see every assignee active in that class. Explore C22C
Ranked #39,760 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Daye Special Steel Co., Ltd. against Datavault AI Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.0/100 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.