Where does Koyo Thermo Systems Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Koyo Thermo Systems Co., Ltd. ranks #19,992 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 Koyo Thermo Systems Co., Ltd. hold?

Koyo Thermo Systems Co., Ltd. holds 14 US utility patents granted between 2019 and 2022, spanning 13 technology areas.

What is Koyo Thermo Systems Co., Ltd.'s Innovation Score?

Koyo Thermo Systems Co., Ltd. has an Innovation Score of 28.2 out of 100 (26th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Koyo Thermo Systems Co., Ltd.'s patent grant rate increasing or decreasing?

Koyo Thermo Systems Co., Ltd.'s recent grant velocity is +267% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Koyo Thermo Systems Co., Ltd.'s patents?

Koyo Thermo Systems Co., Ltd.'s patents average 7.1 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 Koyo Thermo Systems 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

Koyo Thermo Systems Co., Ltd.

Q: What technology areas does Koyo Thermo Systems Co., Ltd. focus on?

Koyo Thermo Systems Co., Ltd.'s top technology area is H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General) with 5 patents, ranking #602 of 2,247 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

USPTO PatentsView assignee record - 14 granted patents across 13 technology areas, recorded in grant years 2019–2022. 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: H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Koyo ranks #19,992 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 13 technology areas.

#19,992
of 49,997 US assignees by volume: 26th percentile
by Innovation Score (28.2/100): 7.1
avg claims per patent: +267%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R19992 · Foreign Corporation #19,992 · 14 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 14 grants
MID-PACK #19,992/49,997
PHOTO-FINISH Kolbus & KG
CPC-FOCUS H05B · 13 areas
INNOV-THIN 28.2/100
CLAIMS-SPARSE 7.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +267% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kolbus GmbH & Co. KG (±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 Koyo’s 28.2 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 9.4 pts (33%) Velocity 1.8 pts (6%) Breadth 12.7 pts (45%) Claim depth 4.2 pts (15%)

Qualcomm Incorporated · highest

85
Koyo Thermo Systems · this assignee

28
3D Lighting… · lowest

7

What this shows Koyo's Innovation Score is 28.2/100 (26th percentile 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 Koyo?

Each dot is one of Koyo’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). Koyo’s own 7.1 claims/patent is at or below the 17.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Koyo's grants concentrate

Koyo Thermo Systems Co., Ltd. is a focused PatentsView assignee: 13 CPC subclasses with 35.7% of grants classified under H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General). Peak complete grant year is 2020 (5 grants) versus a trough of 3 in 2019. By volume, Koyo sits between Kolbus GmbH & Co. KG and Landauer, Inc..

Koyo's three-year grant acceleration

Koyo Thermo Systems Co., Ltd. shows 3 grants in 2022–2024 against only 11 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.

Kolbus & KG

14
Komatsu America

14
Kona I

14
Kona Medical

14
Krystal Biotech

14
Kurtz

14
L E Jones

14
Landauer

14
Koyo Thermo Syste… ◀

14

What this shows Koyo holds 14 patents at rank #19,993, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Koyo

By rank, the assignees closest to #19,993 in granted patent volume.

Leaders in H05B (Electric Heating)

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

Koyo's Innovation Score vs. every tracked assignee

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

28 26th percentile higher than 26% 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 · 2019–2022

Grants by year

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

View data table

Koyo Thermo Systems Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	3	21.4%
2020	5	35.7%
2021	3	21.4%
2022	3	21.4%

Which technologies does Koyo Thermo Systems Co., Ltd. patent most?

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 5

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 5

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 5

F27B - Furnaces, Kilns, Ovens OR Retorts IN GENERAL; Open Sintering OR Like Apparatus 5

B33Y - Additive Manufacturing, i.e. Manufacturing OF Three-dimensional [3-D] Objects BY Additive Deposition, Additive Agglomeration OR Additive Layering, e.g. BY 3-D Printing, Stereolithography OR Selective Laser Sintering 4

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

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 4

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 3

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 2

B29K - Indexing Scheme Associated With Subclasses B29b, B29c OR B29d, Relating TO Moulding Materials OR TO Materials FOR ; Moulds, ; Reinforcements, Fillers OR Preformed Parts, e.g. Inserts 2

B30B - Presses IN General 1

F16J - Pistons ; CYLINDERS; Sealings 1

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 1

Top 13 of 13 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

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

Koyo Thermo Systems Co., Ltd.'s lead technology class is H05B (Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General), 35.7% of its portfolio - see every assignee active in that class. Explore H05B
Ranked #19,992 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Koyo Thermo Systems Co., Ltd. against Kolbus GmbH & Co. KG, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.2/100 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.