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

According to USPTO PatentsView (2015–2025 granted utility patents), Aoi Seiki Co., Ltd. ranks #15,817 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 Aoi Seiki Co., Ltd. hold?

Aoi Seiki Co., Ltd. holds 18 US utility patents granted between 2015 and 2024, spanning 15 technology areas.

What is Aoi Seiki Co., Ltd.'s Innovation Score?

Aoi Seiki Co., Ltd. has an Innovation Score of 38.0 out of 100 (top 42% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Aoi Seiki Co., Ltd. focus on?

Aoi Seiki Co., Ltd.'s top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 15 patents, ranking #1,024 of 7,863 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

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

Aoi Seiki Co., Ltd.'s recent grant velocity is -50% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Aoi Seiki Co., Ltd.'s patents?

Aoi Seiki Co., Ltd.'s patents average 5.1 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 Aoi Seiki 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

Aoi Seiki Co., Ltd.

USPTO PatentsView assignee record - 18 granted patents across 15 technology areas, recorded in grant years 2015–2024. 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: G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Aoi ranks #15,817 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 15 technology areas.

#15,817
of 49,997 US assignees by volume: Top 42%
by Innovation Score (38.0/100): 5.1
avg claims per patent: -50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R15817 · Foreign Corporation #15,817 · 18 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 18 grants
MID-PACK #15,817/49,997
PHOTO-FINISH Amec Foster Wheeler…
CPC-FOCUS G01N · 15 areas
INNOV-THIN 38.0/100
CLAIMS-SPARSE 5.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Amec Foster Wheeler USA Corporation (±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 Aoi’s 38.0 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 10.2 pts (27%) Velocity 11.1 pts (29%) Breadth 13.7 pts (36%) Claim depth 3.0 pts (8%)

Qualcomm Incorporated · highest

85
Aoi Seiki · this assignee

38
3D Lighting… · lowest

7

What this shows Aoi's Innovation Score is 38.0/100 (top 42% 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 Aoi?

Each dot is one of Aoi’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). Aoi’s own 5.1 claims/patent is at or below the 16.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Aoi's grants concentrate

Aoi Seiki Co., Ltd. is a focused PatentsView assignee: 15 CPC subclasses with 83.3% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2015 (4 grants) versus a trough of 1 in 2021. By volume, Aoi sits between Amec Foster Wheeler USA Corporation and Argon Medical Devices, Inc..

Aoi's three-year grant acceleration

Aoi Seiki Co., Ltd. shows 5 grants in 2022–2024 against only 3 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.

Amec Foster Wheel…

18
Ampaire

18
Amphenol East Asia

18
Antronix

18
Applied Underwrit…

18
Arbor Biotechnolo…

18
Argela Yazilim ve…

18
Argon Medical Dev…

18
Aoi Seiki ◀

18

What this shows Aoi holds 18 patents at rank #15,829, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Aoi

By rank, the assignees closest to #15,829 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

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

Aoi's Innovation Score vs. every tracked assignee

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

38 Top 42% higher than 58% 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 · 2015–2024

Grants by year

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

View data table

Aoi Seiki Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	22.2%
2016	2	11.1%
2017	2	11.1%
2018	2	11.1%
2019	2	11.1%
2021	1	5.6%
2022	1	5.6%
2024	4	22.2%

Which technologies does Aoi Seiki Co., Ltd. patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 15

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 7

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 2

G06K - Graphical Data Reading ; Presentation OF DATA; Record CARRIERS; Handling Record Carriers 2

Y10S - Technical Subjects Covered BY Former Uspc Cross-reference ART Collections [XRACs] AND Digests 1

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 1

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 1

G06V - Image OR Video Recognition OR Understanding 1

G06T - Image Data Processing OR Generation, IN General 1

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 1

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 1

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 1

B04B - Centrifuges 1

B65B - Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking 1

B67B - Applying Closure Members TO Bottles Jars, OR Similar CONTAINERS; Opening Closed Containers 1

Top 15 of 15 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

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

Aoi Seiki Co., Ltd.'s lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 83.3% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #15,817 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Aoi Seiki Co., Ltd. against Amec Foster Wheeler USA Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.0/100 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.