Where does Aichi Steel Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Aichi Steel Corporation ranks #3,696 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 Aichi Steel Corporation hold?

Aichi Steel Corporation holds 98 US utility patents granted between 2015 and 2025, spanning 66 technology areas.

What is Aichi Steel Corporation's Innovation Score?

Aichi Steel Corporation has an Innovation Score of 54.9 out of 100 (top 7% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Aichi Steel Corporation focus on?

Aichi Steel Corporation's top technology area is G08G (Traffic Control Systems) with 39 patents, ranking #80 of 1,183 assignees active in that subclass. Grants appear in 66 CPC subclasses total.

Is Aichi Steel Corporation's patent grant rate increasing or decreasing?

Aichi Steel Corporation's recent grant velocity is +178% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Aichi Steel Corporation's patents?

Aichi Steel Corporation's patents average 12.5 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 Aichi Steel 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

Aichi Steel Corporation

USPTO PatentsView assignee record - 98 granted patents across 66 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: G08G (Traffic Control Systems).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Aichi ranks #3,696 of 49,997 tracked US assignees by granted-patent volume, with 98 patents across 66 technology areas.

#3,696
of 49,997 US assignees by volume: Top 7%
by Innovation Score (54.9/100): 12.5
avg claims per patent: +178%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R3696 · Foreign Corporation #3,696 · 98 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 98 grants
TOP-DECILE #3,696/49,997
PHOTO-FINISH Adient Luxembourg…
CPC-WIDE G08G · 66 areas
INNOV-PAR 54.9/100
CLAIMS-RICH 12.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +178% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Adient Luxembourg Holding S.a.r.l. (±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 Aichi’s 54.9 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 15.9 pts (29%) Velocity 6.5 pts (12%) Breadth 25.0 pts (46%) Claim depth 7.5 pts (14%)

Qualcomm Incorporated · highest

85
BCE · near

55
Aichi Steel · this assignee

55
Siemens Gamesa… · near

55
Bayer Intellectual… · near

55
Manehu Product… · near

55
3D Lighting… · lowest

7

What this shows Aichi's Innovation Score is 54.9/100 (top 7% 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 Aichi?

Each dot is one of Aichi’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). Aichi’s own 12.5 claims/patent is ABOVE the 12.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

How Aichi's grant cadence moved

Between 2020–2024, Aichi Steel Corporation received 64 grants versus 23 in 2015–2019 (+178% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2021 at 20 grants and bottomed in 2015 at 2. Lead class G08G accounts for 39.8% of the portfolio across 66 subclasses. Volume neighbours: Southco, Inc. (#3,691) and CureVac AG (#3,699).

Aichi's three-year grant acceleration

From 2019–2021 to 2022–2024, Aichi Steel Corporation moved from 37 to 36 grants (0.97x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Southco

99
TCI

99
Veeva Systems

99
Wheel Group Holdi…

99
Adient Luxembourg…

98
Biosense Webster

98
CTS

98
Curevac

98
Aichi Steel ◀

98

What this shows Aichi holds 98 patents at rank #3,695, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Aichi

By rank, the assignees closest to #3,695 in granted patent volume.

Leaders in G08G (Traffic Control Systems)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Aichi, neither rank-band nor same-CPC leaders (those blocks stay above). In G08G (Traffic Control Systems), Aichi ranks #80 of 1,183 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (55 here).

Siemens Gamesa Renewable Energy Service GmbH 55 Bayer Intellectual Property GmbH 55 Manehu Product Alliance, LLC 55 BCE Inc. 55

Similar claim depth

Nearest assignees by average claims per patent (12.5 here).

Accton Technology Corporation 12.5 avg Adient US LLC 12.5 avg Shanghaitech University 12.5 avg Scientific Games International, Inc. 12.5 avg

Aichi's Innovation Score vs. every tracked assignee

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

55 Top 7% higher than 93% 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

Aichi Steel Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	2.0%
2016	4	4.1%
2017	5	5.1%
2018	3	3.1%
2019	9	9.2%
2020	8	8.2%
2021	20	20.4%
2022	16	16.3%
2023	8	8.2%
2024	12	12.2%
2025partial year	11	11.2%

Which technologies does Aichi Steel Corporation patent most?

G08G - Traffic Control Systems 39

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 36

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 31

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 26

E01F - Additional Work, Such AS Equipping Roads OR THE Construction OF Platforms, Helicopter Landing Stages, Signs, Snow Fences, OR THE Like 23

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 21

B60W - Conjoint Control OF Vehicle Sub-units OF Different Type OR Different FUNCTION; Control Systems Specially Adapted FOR Hybrid VEHICLES; Road Vehicle Drive Control Systems FOR Purposes NOT Related TO THE Control OF A Particular Sub-unit 15

B62D - Motor VEHICLES; Trailers 14

C22C - Alloys 10

H02K - Dynamo-electric Machines 8

G01V - GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags 8

H04W - Wireless Communication Networks 7

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 6

G06K - Graphical Data Reading ; Presentation OF DATA; Record CARRIERS; Handling Record Carriers 6

E01C - Construction OF, OR Surfaces FOR, Roads, Sports Grounds, OR THE LIKE; Machines OR Auxiliary Tools FOR Construction OR Repair 6

Top 15 of 66 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

Aichi Steel Corporation's patent record in context - here's where to go next.

Aichi Steel Corporation's lead technology class is G08G (Traffic Control Systems), 39.8% of its portfolio - see every assignee active in that class. Explore G08G
Ranked #3,696 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Aichi Steel Corporation against Southco, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 54.9/100 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.