Where does Enshu Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Enshu Limited ranks #28,685 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 Enshu Limited hold?

Enshu Limited holds 9 US utility patents granted between 2016 and 2024, spanning 7 technology areas.

What is Enshu Limited's Innovation Score?

Enshu Limited has an Innovation Score of 40.3 out of 100 (top 36% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Enshu Limited focus on?

Enshu Limited's top technology area is B60R (Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR) with 5 patents, ranking #554 of 1,969 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is Enshu Limited's patent grant rate increasing or decreasing?

Enshu Limited's recent grant velocity is -20% 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 Enshu Limited's patents?

Enshu Limited'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.

How is the Enshu Limited 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

Enshu Limited

USPTO PatentsView assignee record - 9 granted patents across 7 technology areas, recorded in grant years 2016–2024. 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: B60R (Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Enshu ranks #28,685 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 7 technology areas.

#28,685
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.3/100): 5.0
avg claims per patent: -20%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R28685 · Foreign Corporation #28,685 · 9 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 9 grants
MID-PACK #28,685/49,997
PHOTO-FINISH Engineered Products…
CPC-NARROW B60R · 7 areas
INNOV-PAR 40.3/100
CLAIMS-SPARSE 5.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -20% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Engineered Products AND Services, 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 Enshu’s 40.3 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 8.0 pts (20%) Velocity 20.0 pts (50%) Breadth 9.4 pts (23%) Claim depth 3.0 pts (7%)

Qualcomm Incorporated · highest

85
Enshu · this assignee

40
3D Lighting… · lowest

7

What this shows Enshu's Innovation Score is 40.3/100 (top 36% 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 Enshu?

Each dot is one of Enshu’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). Enshu’s own 5.0 claims/patent is at or below the 15.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Enshu's grants concentrate

Enshu Limited is a focused PatentsView assignee: 7 CPC subclasses with 55.6% of grants classified under B60R (Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR). Peak complete grant year is 2016 (2 grants) versus a trough of 1 in 2017. By volume, Enshu sits between Engineered Products AND Services, Inc. and Epygon.

Enshu's three-year grant acceleration

Enshu Limited shows 3 grants in 2022–2024 against only 1 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.

Engineered Produc…

9
Engo Industries

9
Enhance

9
Enrichment Techno…

9
Enumerix

9
EOS Holding

9
EP Minerals

9
Epygon

9
Enshu ◀

9

What this shows Enshu holds 9 patents at rank #28,645, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Enshu

By rank, the assignees closest to #28,645 in granted patent volume.

Leaders in B60R (Vehicles)

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

Enshu's Innovation Score vs. every tracked assignee

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

40 Top 36% higher than 64% 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 · 2016–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Enshu Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	22.2%
2017	1	11.1%
2018	2	22.2%
2021	1	11.1%
2023	1	11.1%
2024	2	22.2%

Which technologies does Enshu Limited patent most?

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 5

B23B - TURNING; Boring 2

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

B60N - Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR 1

B23Q - Details, Components, OR Accessories FOR Machine Tools, e.g. Arrangements FOR Copying OR Controlling ; Machine Tools IN General Characterised BY THE Construction OF Particular Details OR COMPONENTS; Combinations OR Associations OF Metal-working Machines, NOT Directed TO A Particular Result 1

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 1

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 1

Top 7 of 7 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

Enshu Limited's patent record in context - here's where to go next.

Enshu Limited's lead technology class is B60R (Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR), 55.6% of its portfolio - see every assignee active in that class. Explore B60R
Ranked #28,685 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Enshu Limited against Engineered Products AND Services, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.3/100 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.