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

According to USPTO PatentsView (2015–2025 granted utility patents), Tokyo GAS Co., Ltd. ranks #15,008 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 Tokyo GAS Co., Ltd. hold?

Tokyo GAS Co., Ltd. holds 20 US utility patents granted between 2015 and 2025, spanning 22 technology areas.

What is Tokyo GAS Co., Ltd.'s Innovation Score?

Tokyo GAS Co., Ltd. has an Innovation Score of 39.4 out of 100 (top 38% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Tokyo GAS Co., Ltd. focus on?

Tokyo GAS Co., Ltd.'s top technology area is C01B (Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c) with 7 patents, ranking #327 of 1,689 assignees active in that subclass. Grants appear in 22 CPC subclasses total.

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

Tokyo GAS Co., Ltd.'s recent grant velocity is -10% 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 GAS Co., Ltd.'s patents?

Tokyo GAS Co., Ltd.'s patents average 13.1 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 Tokyo GAS 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

Tokyo GAS Co., Ltd.

USPTO PatentsView assignee record - 20 granted patents across 22 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: C01B (Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tokyo ranks #15,008 of 49,997 tracked US assignees by granted-patent volume, with 20 patents across 22 technology areas.

#15,008
of 49,997 US assignees by volume: Top 38%
by Innovation Score (39.4/100): 13.1
avg claims per patent: -10%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R15008 · Foreign Corporation #15,008 · 20 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-SMALL 20 grants
MID-PACK #15,008/49,997
PHOTO-FINISH THE J M Smucker
CPC-FOCUS C01B · 22 areas
INNOV-THIN 39.4/100
CLAIMS-RICH 13.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -10% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: THE J. M. Smucker Company (±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 39.4 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 10.5 pts (27%) Velocity 4.4 pts (11%) Breadth 16.6 pts (42%) Claim depth 7.8 pts (20%)

Qualcomm Incorporated · highest

85
Tokyo GAS · this assignee

39
3D Lighting… · lowest

7

What this shows Tokyo's Innovation Score is 39.4/100 (top 38% 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 13.1 claims/patent is at or below the 13.7 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 GAS Co., Ltd. is a focused PatentsView assignee: 22 CPC subclasses with 35% of grants classified under C01B (Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c). Peak complete grant year is 2015 (5 grants) versus a trough of 1 in 2017. By volume, Tokyo sits between THE J. M. Smucker Company and Trumpf Huettinger SP. Z O. O..

Tokyo's three-year grant acceleration

Tokyo GAS Co., Ltd. shows 4 grants in 2022–2024 against only 6 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.

THE J M Smucker

20
THE Sy-klone

20
Thyssenkrupp Roth…

20
Tokai University…

20
Tolero Pharmaceut…

20
Toyota Motor Sale…

20
Trojan

20
Trumpf Huettinger…

20
Tokyo GAS ◀

20

What this shows Tokyo holds 20 patents at rank #14,984, 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 #14,984 in granted patent volume.

Leaders in C01B (Non-metallic Elements)

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

Tokyo's Innovation Score vs. every tracked assignee

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

39 Top 38% higher than 62% 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 GAS Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	25.0%
2016	2	10.0%
2017	1	5.0%
2018	1	5.0%
2019	1	5.0%
2020	3	15.0%
2021	2	10.0%
2023	4	20.0%
2025partial year	1	5.0%

Which technologies does Tokyo GAS Co., Ltd. patent most?

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 7

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 7

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

B01D - Separation 6

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 6

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 5

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 4

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 4

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 3

Y02C - Capture, Storage, Sequestration OR Disposal OF Greenhouse Gases [GHG] 3

C07C - Acyclic OR Carbocyclic Compounds 1

G01V - GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags 1

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

G16Z - Information AND Communication Technology [ICT] Specially Adapted FOR Specific Application Fields, NOT Otherwise Provided FOR 1

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 1

Top 15 of 22 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 GAS Co., Ltd.'s patent record in context - here's where to go next.

Tokyo GAS Co., Ltd.'s lead technology class is C01B (Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c), 35% of its portfolio - see every assignee active in that class. Explore C01B
Ranked #15,008 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tokyo GAS Co., Ltd. against THE J. M. Smucker Company, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.4/100 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.