Where does Hitachi Construction Machinery Tierra Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi Construction Machinery Tierra Co., Ltd. ranks #5,946 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 Hitachi Construction Machinery Tierra Co., Ltd. hold?

Hitachi Construction Machinery Tierra Co., Ltd. holds 57 US utility patents granted between 2017 and 2025, spanning 28 technology areas.

What is Hitachi Construction Machinery Tierra Co., Ltd.'s Innovation Score?

Hitachi Construction Machinery Tierra Co., Ltd. has an Innovation Score of 41.4 out of 100 (top 33% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hitachi Construction Machinery Tierra Co., Ltd. focus on?

Hitachi Construction Machinery Tierra Co., Ltd.'s top technology area is E02F (DREDGING; Soil-shifting) with 55 patents, ranking #18 of 348 assignees active in that subclass. Grants appear in 28 CPC subclasses total.

Is Hitachi Construction Machinery Tierra Co., Ltd.'s patent grant rate increasing or decreasing?

Hitachi Construction Machinery Tierra Co., Ltd.'s recent grant velocity is +16% 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 Hitachi Construction Machinery Tierra Co., Ltd.'s patents?

Hitachi Construction Machinery Tierra Co., Ltd.'s patents average 5.0 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hitachi Construction Machinery Tierra Co., Ltd.

Q: How is the Hitachi Construction Machinery Tierra 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 PatentsView assignee record - 57 granted patents across 28 technology areas, recorded in grant years 2017–2025. 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: E02F (DREDGING; Soil-shifting).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Hitachi ranks #5,946 of 49,997 tracked US assignees by granted-patent volume, with 57 patents across 28 technology areas.

#5,946
of 49,997 US assignees by volume: Top 33%
by Innovation Score (41.4/100): 5.0
avg claims per patent: +16%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5946 · Foreign Corporation #5,946 · 57 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-SMALL 57 grants
UPPER-Q #5,946/49,997
PHOTO-FINISH Flexterra
CPC-FOCUS E02F · 28 areas
INNOV-PAR 41.4/100
CLAIMS-SPARSE 5.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +16% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Flexterra, Inc. (±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 Hitachi’s 41.4 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 14.0 pts (34%) Velocity 5.7 pts (14%) Breadth 18.7 pts (45%) Claim depth 3.0 pts (7%)

Qualcomm Incorporated · highest

85
Ener-Core Power · near

41
Goodbaby Child… · near

41
Hitachi Construction… · this assignee

41
Olympus Scientific… · near

41
Ooma · near

41
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 41.4/100 (top 33% 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 Hitachi?

Each dot is one of Hitachi’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). Hitachi’s own 5.0 claims/patent is at or below the 15.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Hitachi's grants concentrate

Hitachi Construction Machinery Tierra Co., Ltd. is a focused PatentsView assignee: 28 CPC subclasses with 96.5% of grants classified under E02F (DREDGING; Soil-shifting). Peak complete grant year is 2018 (10 grants) versus a trough of 3 in 2020. By volume, Hitachi sits between Flexterra, Inc. and Ironburg Inventions Limited.

Hitachi's three-year grant acceleration

From 2019–2021 to 2022–2024, Hitachi Construction Machinery Tierra Co., Ltd. moved from 21 to 18 grants (0.86x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Flexterra

57
Forschungsverbund…

57
Franz Haimer Masc…

57
Gruenenthal

57
Innocom Technolog…

57
Ipgate

57
Innovation First

57
Ironburg Inventio…

57
Hitachi Construct… ◀

57

What this shows Hitachi holds 57 patents at rank #5,944, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hitachi

By rank, the assignees closest to #5,944 in granted patent volume.

Leaders in E02F (Dredging)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Hitachi, neither rank-band nor same-CPC leaders (those blocks stay above). In E02F (Dredging), Hitachi ranks #18 of 348 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (41 here).

Olympus Scientific Solutions Americas Corp. 41 Ooma, Inc. 41 Goodbaby Child Products Co., Ltd. 41 Ener-Core Power, Inc. 41

Similar claim depth

Nearest assignees by average claims per patent (5.0 here).

Zobele Holding SPA 4.9 avg Shinano Kenshi Kabushiki Kaisha 4.9 avg Theragun, Inc. 5.0 avg Raffel Systems, LLC 4.9 avg

Hitachi's Innovation Score vs. every tracked assignee

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

41 Top 33% higher than 67% 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 · 2017–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Hitachi Construction Machinery Tierra Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	5	8.8%
2018	10	17.5%
2019	10	17.5%
2020	3	5.3%
2021	8	14.0%
2022	9	15.8%
2023	5	8.8%
2024	4	7.0%
2025partial year	3	5.3%

Which technologies does Hitachi Construction Machinery Tierra Co., Ltd. patent most?

E02F - DREDGING; Soil-shifting 55

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 28

B60K - Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply 12

Y02T - Climate Change Mitigation Technologies Related TO Transportation 11

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 7

F02D - Controlling Combustion Engines 6

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 5

B60Y - Indexing Scheme Relating TO Aspects Cross-cutting Vehicle Technology 4

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 3

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 2

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 2

G05G - Control Devices OR Systems Insofar AS Characterised BY Mechanical Features Only 2

F02N - Starting OF Combustion ENGINES; Starting Aids FOR Such Engines, NOT Otherwise Provided FOR 2

E05B - LOCKS; Accessories THEREFOR; Handcuffs 2

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 2

Top 15 of 28 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

Hitachi Construction Machinery Tierra Co., Ltd.'s patent record in context - here's where to go next.

Hitachi Construction Machinery Tierra Co., Ltd.'s lead technology class is E02F (DREDGING; Soil-shifting), 96.5% of its portfolio - see every assignee active in that class. Explore E02F
Ranked #5,946 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi Construction Machinery Tierra Co., Ltd. against Flexterra, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 41.4/100 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.