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

According to USPTO PatentsView (2015–2025 granted utility patents), Daifuku Co., Ltd. ranks #993 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 Daifuku Co., Ltd. hold?

Daifuku Co., Ltd. holds 443 US utility patents granted between 2015 and 2025, spanning 99 technology areas.

What is Daifuku Co., Ltd.'s Innovation Score?

Daifuku Co., Ltd. has an Innovation Score of 57.9 out of 100 (top 5% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Daifuku Co., Ltd.'s recent grant velocity is -5% 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 Daifuku Co., Ltd.'s patents?

Daifuku Co., Ltd.'s patents average 8.7 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 Daifuku 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

Daifuku Co., Ltd.

Q: What technology areas does Daifuku Co., Ltd. focus on?

Daifuku Co., Ltd.'s top technology area is B65G (Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors) with 320 patents, ranking #2 of 1,746 assignees active in that subclass. Grants appear in 99 CPC subclasses total.

USPTO PatentsView assignee record - 443 granted patents across 99 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: B65G (Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Daifuku ranks #993 of 49,997 tracked US assignees by granted-patent volume, with 443 patents across 99 technology areas.

#993
of 49,997 US assignees by volume: Top 5%
by Innovation Score (57.9/100): 8.7
avg claims per patent: -5%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R993 · Foreign Corporation #993 · 443 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-MID 443 grants
TOP-DECILE #993/49,997
PHOTO-FINISH YKK
CPC-WIDE B65G · 99 areas
INNOV-PAR 57.9/100
CLAIMS-PAR 8.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -5% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: YKK 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 Daifuku’s 57.9 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 21.1 pts (36%) Velocity 6.6 pts (11%) Breadth 25.0 pts (43%) Claim depth 5.2 pts (9%)

Qualcomm Incorporated · highest

85
Andritz · near

58
Conair · near

58
Daifuku · this assignee

58
Kemet · near

58
Techtronic Floor… · near

58
3D Lighting… · lowest

7

What this shows Daifuku's Innovation Score is 57.9/100 (top 5% 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 Daifuku?

Each dot is one of Daifuku’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). Daifuku’s own 8.7 claims/patent is at or below the 15.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Daifuku's grant cadence moved

Between 2020–2024, Daifuku Co., Ltd. received 194 grants versus 204 in 2015–2019 (-5% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2024 at 59 grants and bottomed in 2022 at 23. Lead class B65G accounts for 72.2% of the portfolio across 99 subclasses. Volume neighbours: The Charles Stark Draper Laboratory, Inc. (#989) and Beta AIR LLC (#997).

Daifuku's three-year grant acceleration

From 2019–2021 to 2022–2024, Daifuku Co., Ltd. moved from 120 to 119 grants (0.99x 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 #1,208. See the growth leaderboard.

The Charles Stark…

446
Nissan Chemical I…

445
Pirelli Tyre S P A

445
University OF Mar…

444
YKK

443
Daifuku ◀

443
Crestron

442
Siemens Industry

442
Beta AIR

441

What this shows Daifuku holds 443 patents at rank #993, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Daifuku

By rank, the assignees closest to #993 in granted patent volume.

Leaders in B65G (Transport OR Storage Devices)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Daifuku, neither rank-band nor same-CPC leaders (those blocks stay above). In B65G (Transport OR Storage Devices), Daifuku ranks #2 of 1,746 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (58 here).

Conair LLC 58 Techtronic Floor Care Technology Limited 58 Kemet Electronics Corporation 58 Andritz Inc. 58

Similar claim depth

Nearest assignees by average claims per patent (8.7 here).

Shin-etsu Handotai Co., Ltd. 8.7 avg Nationwide Mutual Insurance Company 8.7 avg Jiangsu University 8.7 avg Spin Master Ltd. 8.7 avg

Daifuku's Innovation Score vs. every tracked assignee

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

58 Top 5% higher than 95% 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

Daifuku Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	38	8.6%
2016	29	6.5%
2017	44	9.9%
2018	48	10.8%
2019	45	10.2%
2020	47	10.6%
2021	28	6.3%
2022	23	5.2%
2023	37	8.4%
2024	59	13.3%
2025partial year	45	10.2%

Which technologies does Daifuku Co., Ltd. patent most?

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 320

H01L - Semiconductor Devices NOT Covered BY Class H10 149

B61B - Railway SYSTEMS; Equipment Therefor NOT Otherwise Provided FOR 44

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 37

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 29

B66C - CRANES; Load-engaging Elements OR Devices FOR Cranes, Capstans, Winches, OR Tackles 28

B66F - Hoisting, Lifting, Hauling OR Pushing, NOT Otherwise Provided FOR, e.g. Devices Which Apply A Lifting OR Pushing Force Directly TO THE Surface OF A Load 28

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 17

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 12

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 11

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 11

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 10

B65B - Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking 10

B07C - Postal SORTING; Sorting Individual Articles, OR Bulk Material FIT TO BE Sorted Piece-meal, e.g. BY Picking 9

E06B - Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates 9

Top 15 of 99 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

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

Daifuku Co., Ltd.'s lead technology class is B65G (Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors), 72.2% of its portfolio - see every assignee active in that class. Explore B65G
Ranked #993 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Daifuku Co., Ltd. against The Charles Stark Draper Laboratory, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 57.9/100 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.