Where does Mitsui Kinzoku ACT Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Mitsui Kinzoku ACT Corporation ranks #2,562 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 Mitsui Kinzoku ACT Corporation hold?

Mitsui Kinzoku ACT Corporation holds 152 US utility patents granted between 2015 and 2025, spanning 31 technology areas.

What is Mitsui Kinzoku ACT Corporation's Innovation Score?

Mitsui Kinzoku ACT Corporation has an Innovation Score of 47.0 out of 100 (top 19% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Mitsui Kinzoku ACT Corporation focus on?

Mitsui Kinzoku ACT Corporation's top technology area is E05B (LOCKS; Accessories THEREFOR; Handcuffs) with 109 patents, ranking #3 of 815 assignees active in that subclass. Grants appear in 31 CPC subclasses total.

Is Mitsui Kinzoku ACT Corporation's patent grant rate increasing or decreasing?

Mitsui Kinzoku ACT Corporation's recent grant velocity is +20% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Mitsui Kinzoku ACT Corporation's patents?

Mitsui Kinzoku ACT Corporation's patents average 6.4 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 Mitsui Kinzoku ACT 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

Mitsui Kinzoku ACT Corporation

USPTO PatentsView assignee record - 152 granted patents across 31 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: E05B (LOCKS; Accessories THEREFOR; Handcuffs).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Mitsui ranks #2,562 of 49,997 tracked US assignees by granted-patent volume, with 152 patents across 31 technology areas.

#2,562
of 49,997 US assignees by volume: Top 19%
by Innovation Score (47.0/100): 6.4
avg claims per patent: +20%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2562 · Foreign Corporation #2,562 · 152 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MID 152 grants
TOP-DECILE #2,562/49,997
PHOTO-FINISH Guardian Industries
CPC-FOCUS E05B · 31 areas
INNOV-PAR 47.0/100
CLAIMS-SPARSE 6.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +20% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Guardian Industries Corp. (±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 Mitsui’s 47.0 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 17.4 pts (37%) Velocity 6.1 pts (13%) Breadth 19.7 pts (42%) Claim depth 3.8 pts (8%)

Qualcomm Incorporated · highest

85
Mitsui Kinzoku ACT · this assignee

47
RPM Industries · near

47
NanoString · near

47
Taylor Commercial… · near

47
Wright State… · near

47
3D Lighting… · lowest

7

What this shows Mitsui's Innovation Score is 47.0/100 (top 19% 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 Mitsui?

Each dot is one of Mitsui’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). Mitsui’s own 6.4 claims/patent is at or below the 16.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Mitsui's grants concentrate

Mitsui Kinzoku ACT Corporation is a focused PatentsView assignee: 31 CPC subclasses with 71.7% of grants classified under E05B (LOCKS; Accessories THEREFOR; Handcuffs). Peak complete grant year is 2024 (23 grants) versus a trough of 8 in 2023. By volume, Mitsui sits between Guardian Industries Corp. and Nevro Corp..

Mitsui's three-year grant acceleration

From 2019–2021 to 2022–2024, Mitsui Kinzoku ACT Corporation moved from 51 to 47 grants (0.92x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,405. See the growth leaderboard.

Guardian Industri…

152
Hideep

152
Intra-cellular Th…

152
Joyson Safety Sys…

152
Mannkind

152
Merlin Technology

152
Nanotek Instrumen…

152
Nevro

152
Mitsui Kinzoku ACT ◀

152

What this shows Mitsui holds 152 patents at rank #2,560, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Mitsui

By rank, the assignees closest to #2,560 in granted patent volume.

Leaders in E05B (Locks)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Mitsui, neither rank-band nor same-CPC leaders (those blocks stay above). In E05B (Locks), Mitsui ranks #3 of 815 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (47 here).

RPM Industries, LLC 47 Taylor Commercial Foodservice, LLC 47 NanoString Technologies, Inc. 47 Wright State University 47

Similar claim depth

Nearest assignees by average claims per patent (6.4 here).

Keter Plastic Ltd. 6.4 avg Brita LP 6.4 avg Okuma Corporation 6.4 avg Polyplastics Co., Ltd. 6.4 avg

Mitsui's Innovation Score vs. every tracked assignee

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

47 Top 19% higher than 81% 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

Mitsui Kinzoku ACT Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	11	7.2%
2016	14	9.2%
2017	10	6.6%
2018	10	6.6%
2019	20	13.2%
2020	13	8.6%
2021	18	11.8%
2022	16	10.5%
2023	8	5.3%
2024	23	15.1%
2025partial year	9	5.9%

Which technologies does Mitsui Kinzoku ACT Corporation patent most?

E05B - LOCKS; Accessories THEREFOR; Handcuffs 109

B60J - Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles 42

E05Y - Indexing Scheme Associated With Subclasses E05d AND E05f, Relating TO Construction Elements, Electric Control, Power Supply, Power Signal OR Transmission, User Interfaces, Mounting OR Coupling, Details, Accessories, Auxiliary Operations NOT Otherwise Provided FOR, Application Thereof 41

E05F - Devices FOR Moving Wings Into Open OR Closed POSITION; Checks FOR WINGS; Wing Fittings NOT Otherwise Provided FOR, Concerned With THE Functioning OF THE Wing 34

Y10T - Technical Subjects Covered BY Former US Classification 25

B60N - Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR 12

E05C - Bolts OR Fastening Devices FOR Wings, Specially FOR Doors OR Windows 10

E05D - Hinges OR Suspension Devices FOR Doors, Windows OR Wings 10

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 8

F16H - Gearing 7

B62D - Motor VEHICLES; Trailers 7

Y10S - Technical Subjects Covered BY Former Uspc Cross-reference ART Collections [XRACs] AND Digests 5

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 3

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 3

H04Q - Selecting 2

Top 15 of 31 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

Mitsui Kinzoku ACT Corporation's patent record in context - here's where to go next.

Mitsui Kinzoku ACT Corporation's lead technology class is E05B (LOCKS; Accessories THEREFOR; Handcuffs), 71.7% of its portfolio - see every assignee active in that class. Explore E05B
Ranked #2,562 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Mitsui Kinzoku ACT Corporation against Guardian Industries Corp., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.0/100 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.