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

According to USPTO PatentsView (2015–2025 granted utility patents), Kyokutoh Co., Ltd. ranks #16,940 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 Kyokutoh Co., Ltd. hold?

Kyokutoh Co., Ltd. holds 17 US utility patents granted between 2016 and 2025, spanning 14 technology areas.

What is Kyokutoh Co., Ltd.'s Innovation Score?

Kyokutoh Co., Ltd. has an Innovation Score of 35.2 out of 100 (top 50% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Kyokutoh Co., Ltd.'s recent grant velocity is -12% 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 Kyokutoh Co., Ltd.'s patents?

Kyokutoh Co., Ltd.'s patents average 5.1 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 Kyokutoh 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

Kyokutoh Co., Ltd.

Q: What technology areas does Kyokutoh Co., Ltd. focus on?

Kyokutoh Co., Ltd.'s top technology area is 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) with 16 patents, ranking #118 of 1,623 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

USPTO PatentsView assignee record - 17 granted patents across 14 technology areas, recorded in grant years 2016–2025. 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: 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).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Kyokutoh ranks #16,940 of 49,997 tracked US assignees by granted-patent volume, with 17 patents across 14 technology areas.

#16,940
of 49,997 US assignees by volume: Top 50%
by Innovation Score (35.2/100): 5.1
avg claims per patent: -12%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16940 · Foreign Corporation #16,940 · 17 grants

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

GRANTS-MICRO 17 grants
MID-PACK #16,940/49,997
PHOTO-FINISH Kaiser Optical Systems
CPC-FOCUS B23K · 14 areas
INNOV-THIN 35.2/100
CLAIMS-SPARSE 5.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -12% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kaiser Optical Systems 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 Kyokutoh’s 35.2 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 10.0 pts (28%) Velocity 8.9 pts (25%) Breadth 13.2 pts (38%) Claim depth 3.1 pts (9%)

Qualcomm Incorporated · highest

85
Kyokutoh · this assignee

35
3D Lighting… · lowest

7

What this shows Kyokutoh's Innovation Score is 35.2/100 (top 50% 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 Kyokutoh?

Each dot is one of Kyokutoh’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). Kyokutoh’s own 5.1 claims/patent is at or below the 16.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Kyokutoh's grants concentrate

Kyokutoh Co., Ltd. is a focused PatentsView assignee: 14 CPC subclasses with 94.1% of grants classified under 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). Peak complete grant year is 2016 (4 grants) versus a trough of 1 in 2020. By volume, Kyokutoh sits between Kpit Technologies Limited and Kataoka Corporation.

Kyokutoh's three-year grant acceleration

Kyokutoh Co., Ltd. shows 4 grants in 2022–2024 against only 3 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.

Kpit

17
Kratos Integral H…

17
KSQ Therapeutics

17
Ksi Conveyor

17
Kyowa Sangyo

17
Kaiser Optical Sy…

17
Karcher North Ame…

17
Kataoka

17
Kyokutoh ◀

17

What this shows Kyokutoh holds 17 patents at rank #16,927, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kyokutoh

By rank, the assignees closest to #16,927 in granted patent volume.

Leaders in B23K (Soldering OR Unsoldering)

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

Kyokutoh's Innovation Score vs. every tracked assignee

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

35 Top 50% higher than 50% 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 · 2016–2025

Grants by year

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

View data table

Kyokutoh Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	4	23.5%
2017	2	11.8%
2018	2	11.8%
2020	1	5.9%
2021	2	11.8%
2022	2	11.8%
2024	2	11.8%
2025partial year	2	11.8%

Which technologies does Kyokutoh Co., Ltd. patent most?

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 16

B23B - TURNING; Boring 7

Y10T - Technical Subjects Covered BY Former US Classification 4

B23C - Milling 4

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 3

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

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 2

H04N - Pictorial Communication, e.g. Television 1

B05B - Spraying APPARATUS; Atomising APPARATUS; Nozzles 1

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 1

F04F - Pumping OF Fluid BY Direct Contact OF Another Fluid OR BY Using Inertia OF Fluid TO BE Pumped ; Siphons 1

B24B - Machines, Devices, OR Processes FOR Grinding OR Polishing ; Dressing OR Conditioning OF Abrading SURFACES; Feeding OF Grinding, Polishing, OR Lapping Agents 1

B25D - Percussive Tools 1

B25B - Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding 1

Top 14 of 14 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

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

Kyokutoh Co., Ltd.'s lead technology class is 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), 94.1% of its portfolio - see every assignee active in that class. Explore B23K
Ranked #16,940 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kyokutoh Co., Ltd. against Kpit Technologies Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 35.2/100 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.