Where does Chiyoda Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chiyoda Corporation ranks #5,066 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 Chiyoda Corporation hold?

Chiyoda Corporation holds 68 US utility patents granted between 2015 and 2025, spanning 61 technology areas.

What is Chiyoda Corporation's Innovation Score?

Chiyoda Corporation has an Innovation Score of 47.5 out of 100 (top 18% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Chiyoda Corporation focus on?

Chiyoda Corporation's top technology area is B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus) with 22 patents, ranking #204 of 2,755 assignees active in that subclass. Grants appear in 61 CPC subclasses total.

Is Chiyoda Corporation's patent grant rate increasing or decreasing?

Chiyoda Corporation's recent grant velocity is -33% 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 Chiyoda Corporation's patents?

Chiyoda Corporation's patents average 8.0 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 Chiyoda 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

Chiyoda Corporation

USPTO PatentsView assignee record - 68 granted patents across 61 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: B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Chiyoda ranks #5,066 of 49,997 tracked US assignees by granted-patent volume, with 68 patents across 61 technology areas.

#5,066
of 49,997 US assignees by volume: Top 18%
by Innovation Score (47.5/100): 8.0
avg claims per patent: -33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5066 · Foreign Corporation #5,066 · 68 grants

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

GRANTS-SMALL 68 grants
UPPER-Q #5,066/49,997
PHOTO-FINISH Ampere Computing
CPC-WIDE B01J · 61 areas
INNOV-PAR 47.5/100
CLAIMS-PAR 8.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Ampere Computing 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 Chiyoda’s 47.5 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 14.6 pts (31%) Velocity 3.0 pts (6%) Breadth 25.0 pts (53%) Claim depth 4.8 pts (10%)

Qualcomm Incorporated · highest

85
Chiyoda · this assignee

47
Keymed (Medical &… · near

47
Little Giant Ladder… · near

47
Magnolia Medical · near

47
Siemens Canada · near

47
3D Lighting… · lowest

7

What this shows Chiyoda's Innovation Score is 47.5/100 (top 18% 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 Chiyoda?

Each dot is one of Chiyoda’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). Chiyoda’s own 8.0 claims/patent is at or below the 18.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Chiyoda's grant cadence moved

Between 2020–2024, Chiyoda Corporation received 26 grants versus 39 in 2015–2019 (-33% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2018 at 12 grants and bottomed in 2023 at 1. Lead class B01J accounts for 32.4% of the portfolio across 61 subclasses. Volume neighbours: Ampere Computing LLC (#5,059) and Crossroads Extremity Systems, LLC (#5,067).

Chiyoda's three-year grant acceleration

From 2019–2021 to 2022–2024, Chiyoda Corporation moved from 22 to 10 grants (0.46x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Ampere Computing

68
BAE Systems Contr…

68
British Telecommu…

68
Cardioinsight

68
Calix

68
Carefusion German…

68
China University…

68
Crossroads Extrem…

68
Chiyoda ◀

68

What this shows Chiyoda holds 68 patents at rank #5,063, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chiyoda

By rank, the assignees closest to #5,063 in granted patent volume.

Leaders in B01J (Chemical OR Physical Processes)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Chiyoda, neither rank-band nor same-CPC leaders (those blocks stay above). In B01J (Chemical OR Physical Processes), Chiyoda ranks #204 of 2,755 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (47 here).

Magnolia Medical Technologies, Inc. 47 Little Giant Ladder Systems, LLC 47 Keymed (Medical & Industrial Equipment) Limited 47 Siemens Canada Limited 47

Similar claim depth

Nearest assignees by average claims per patent (8.0 here).

Chengdu University OF Technology 8.0 avg Dupont Safety & Construction, Inc. 8.0 avg Korloy Inc. 8.0 avg Fujikin Incorporated 8.0 avg

Chiyoda's Innovation Score vs. every tracked assignee

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

47 Top 18% higher than 82% 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

Chiyoda Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	5.9%
2016	8	11.8%
2017	9	13.2%
2018	12	17.6%
2019	6	8.8%
2020	11	16.2%
2021	5	7.4%
2022	7	10.3%
2023	1	1.5%
2024	2	2.9%
2025partial year	3	4.4%

Which technologies does Chiyoda Corporation patent most?

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 22

C07C - Acyclic OR Carbocyclic Compounds 20

C10G - Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GASES; Refining Mixtures Mainly Consisting OF HYDROCARBONS; Reforming OF NAPHTHA; Mineral Waxes 20

B01D - Separation 17

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 16

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 14

F25J - Liquefaction, Solidification OR Separation OF Gases OR Gaseous ; OR Liquefied GASEOUS; Mixtures BY Pressure AND Cold Treatment ; OR BY Bringing Them Into THE Supercritical State 7

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 6

F23J - Removal OR Treatment OF Combustion Products OR Combustion RESIDUES; Flues 5

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 5

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 4

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 4

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 4

Y02C - Capture, Storage, Sequestration OR Disposal OF Greenhouse Gases [GHG] 3

C10K - Purifying OR Modifying THE Chemical Composition OF Combustible Gases Containing Carbon Monoxide 3

Top 15 of 61 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

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

Chiyoda Corporation's lead technology class is B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus), 32.4% of its portfolio - see every assignee active in that class. Explore B01J
Ranked #5,066 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chiyoda Corporation against Ampere Computing LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.5/100 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.