Where does Tokyo Electric Power Company Holdings, Incorporated rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tokyo Electric Power Company Holdings, Incorporated ranks #11,483 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

What is Tokyo Electric Power Company Holdings, Incorporated's Innovation Score?

Tokyo Electric Power Company Holdings, Incorporated has an Innovation Score of 41.5 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%).

Is Tokyo Electric Power Company Holdings, Incorporated's patent grant rate increasing or decreasing?

Tokyo Electric Power Company Holdings, Incorporated's recent grant velocity is -8% 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 Tokyo Electric Power Company Holdings, Incorporated's patents?

Tokyo Electric Power Company Holdings, Incorporated's patents average 8.6 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

Tokyo Electric Power Company Holdings, Incorporated

Q: How many patents does Tokyo Electric Power Company Holdings, Incorporated hold?

Tokyo Electric Power Company Holdings, Incorporated holds 27 US utility patents granted between 2015 and 2025, spanning 41 technology areas.

Q: What technology areas does Tokyo Electric Power Company Holdings, Incorporated focus on?

Tokyo Electric Power Company Holdings, Incorporated's top technology area is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution) with 7 patents, ranking #1,663 of 5,963 assignees active in that subclass. Grants appear in 41 CPC subclasses total.

Q: How is the Tokyo Electric Power Company Holdings, Incorporated 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 - 27 granted patents across 41 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: Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tokyo ranks #11,483 of 49,997 tracked US assignees by granted-patent volume, with 27 patents across 41 technology areas.

#11,483
of 49,997 US assignees by volume: Top 33%
by Innovation Score (41.5/100): 8.6
avg claims per patent: -8%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11483 · Foreign Corporation #11,483 · 27 grants

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

GRANTS-SMALL 27 grants
UPPER-Q #11,483/49,997
PHOTO-FINISH THL Holding
CPC-WIDE Y02E · 41 areas
INNOV-PAR 41.5/100
CLAIMS-PAR 8.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -8% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: THL Holding Company, 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 Tokyo’s 41.5 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 11.5 pts (28%) Velocity 2.2 pts (5%) Breadth 22.6 pts (54%) Claim depth 5.2 pts (13%)

Qualcomm Incorporated · highest

85
Asahi Kasei Fibers · near

42
BAE Systems Land &… · near

42
Mitsui Engineering… · near

42
Sinyu Technology… · near

42
Tokyo Electric… · this assignee

42
3D Lighting… · lowest

7

What this shows Tokyo's Innovation Score is 41.5/100 (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 Tokyo?

Each dot is one of Tokyo’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). Tokyo’s own 8.6 claims/patent is at or below the 11.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Tokyo's grants concentrate

Tokyo Electric Power Company Holdings, Incorporated is a focused PatentsView assignee: 41 CPC subclasses with 25.9% of grants classified under Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution). Peak complete grant year is 2020 (6 grants) versus a trough of 1 in 2017. By volume, Tokyo sits between THL Holding Company, LLC and Trinity International Industries, L.L.C..

Tokyo's three-year grant acceleration

Tokyo Electric Power Company Holdings, Incorporated shows 4 grants in 2022–2024 against only 12 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.

THL Holding

27
Tineco Intelligen…

27
Tissuetech

27
TLC Biopharmaceut…

27
Toyo Aerosol Indu…

27
Toyo Boseki

27
Transgene

27
Trinity Internati…

27
Tokyo Electric Po… ◀

27

What this shows Tokyo holds 27 patents at rank #11,468, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tokyo

By rank, the assignees closest to #11,468 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tokyo, neither rank-band nor same-CPC leaders (those blocks stay above). In Y02E (Reduction OF Greenhouse GAS [GHG] Emissions), Tokyo ranks #1,663 of 5,963 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (42 here).

Sinyu Technology (FUJIAN) Co., Ltd. 42 BAE Systems Land & Armaments L.P. 42 Asahi Kasei Fibers Corporation 42 Mitsui Engineering & Shipbuilding Co., Ltd. 42

Tokyo's Innovation Score vs. every tracked assignee

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

42 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 · 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

Tokyo Electric Power Company Holdings, Incorporated patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	14.8%
2016	3	11.1%
2017	1	3.7%
2018	1	3.7%
2019	4	14.8%
2020	6	22.2%
2021	2	7.4%
2022	2	7.4%
2024	2	7.4%
2025partial year	2	7.4%

Which technologies does Tokyo Electric Power Company Holdings, Incorporated patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 7

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 6

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

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 4

Y04S - Systems Integrating Technologies Related TO Power Network Operation, Communication OR Information Technologies FOR Improving THE Electrical Power Generation, Transmission, Distribution, Management OR Usage, i.e. Smart Grids 3

G06T - Image Data Processing OR Generation, IN General 3

F27D - Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace 2

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 2

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 2

F04D - Non-positive-displacement Pumps 2

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 2

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 2

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 2

Top 15 of 41 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

Tokyo Electric Power Company Holdings, Incorporated's patent record in context - here's where to go next.

Tokyo Electric Power Company Holdings, Incorporated's lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 25.9% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #11,483 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tokyo Electric Power Company Holdings, Incorporated against THL Holding Company, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 41.5/100 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.