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

According to USPTO PatentsView (2015–2025 granted utility patents), Kyoraku Co., Ltd. ranks #2,592 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 Kyoraku Co., Ltd. hold?

Kyoraku Co., Ltd. holds 150 US utility patents granted between 2015 and 2025, spanning 61 technology areas.

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

Kyoraku Co., Ltd. has an Innovation Score of 51.6 out of 100 (top 11% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Kyoraku Co., Ltd.'s recent grant velocity is +27% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Kyoraku Co., Ltd.'s patents?

Kyoraku Co., Ltd.'s patents average 8.4 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 Kyoraku 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

Kyoraku Co., Ltd.

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

Kyoraku Co., Ltd.'s top technology area is 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) with 90 patents, ranking #56 of 4,378 assignees active in that subclass. Grants appear in 61 CPC subclasses total.

USPTO PatentsView assignee record - 150 granted patents across 61 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: 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).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Kyoraku ranks #2,592 of 49,997 tracked US assignees by granted-patent volume, with 150 patents across 61 technology areas.

#2,592
of 49,997 US assignees by volume: Top 11%
by Innovation Score (51.6/100): 8.4
avg claims per patent: +27%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2592 · Foreign Corporation #2,592 · 150 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MID 150 grants
TOP-DECILE #2,592/49,997
PHOTO-FINISH Eberspächer Exhaust…
CPC-WIDE B29C · 61 areas
INNOV-PAR 51.6/100
CLAIMS-PAR 8.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +27% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Eberspächer Exhaust Technology GmbH (±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 Kyoraku’s 51.6 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 17.3 pts (34%) Velocity 4.2 pts (8%) Breadth 25.0 pts (48%) Claim depth 5.1 pts (10%)

Qualcomm Incorporated · highest

85
Headway · near

52
Kyoraku · this assignee

52
Prophesee · near

52
Valeo Comfort AND… · near

52
National Institute… · near

52
3D Lighting… · lowest

7

What this shows Kyoraku's Innovation Score is 51.6/100 (top 11% 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 Kyoraku?

Each dot is one of Kyoraku’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). Kyoraku’s own 8.4 claims/patent is at or below the 15.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Kyoraku's grant cadence moved

Between 2020–2024, Kyoraku Co., Ltd. received 79 grants versus 62 in 2015–2019 (+27% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2020 at 22 grants and bottomed in 2023 at 9. Lead class B29C accounts for 60% of the portfolio across 61 subclasses. Volume neighbours: Eberspächer Exhaust Technology GmbH (#2,588) and Samsara Inc. (#2,596).

Kyoraku's three-year grant acceleration

From 2019–2021 to 2022–2024, Kyoraku Co., Ltd. moved from 60 to 38 grants (0.63x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #2,357. See the growth leaderboard.

Eberspächer Exhau…

150
Epizyme

150
Goodrich Lighting…

150
Harmonic Drive Sy…

150
Nextracker

150
New Jersey Instit…

150
Qingdao Haier Was…

150
Samsara

150
Kyoraku ◀

150

What this shows Kyoraku holds 150 patents at rank #2,592, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kyoraku

By rank, the assignees closest to #2,592 in granted patent volume.

Leaders in B29C (Shaping OR Joining OF Plastics)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Kyoraku, neither rank-band nor same-CPC leaders (those blocks stay above). In B29C (Shaping OR Joining OF Plastics), Kyoraku ranks #56 of 4,378 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (52 here).

Headway Technologies, Inc. 52 Valeo Comfort AND Driving Assistance 52 Prophesee 52 National Institute OF Information AND Communications Technology 52

Similar claim depth

Nearest assignees by average claims per patent (8.4 here).

Doosan Infracore Co., Ltd. 8.4 avg Ichikoh Industries, Ltd. 8.4 avg Adey Holdings (2008) Limited 8.4 avg GigaLane Co., Ltd. 8.4 avg

Kyoraku's Innovation Score vs. every tracked assignee

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

52 Top 11% higher than 89% 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

Kyoraku Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	12	8.0%
2016	10	6.7%
2017	10	6.7%
2018	11	7.3%
2019	19	12.7%
2020	22	14.7%
2021	19	12.7%
2022	14	9.3%
2023	9	6.0%
2024	15	10.0%
2025partial year	9	6.0%

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

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 90

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 62

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 57

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 41

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 33

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 30

Y10T - Technical Subjects Covered BY Former US Classification 27

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 16

B60H - Arrangements OF Heating, Cooling, Ventilating OR Other Air-treating Devices Specially Adapted FOR Passenger OR Goods Spaces OF Vehicles 13

B29D - Producing Particular Articles From Plastics OR From Substances IN A Plastic State 11

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 9

B29B - Preparation OR Pretreatment OF THE Material TO BE SHAPED; Making Granules OR PREFORMS; Recovery OF Plastics OR Other Constituents OF Waste Material Containing Plastics 9

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 8

H02S - Generation OF Electric Power BY Conversion OF Infrared Radiation, Visible Light OR Ultraviolet Light, e.g. Using Photovoltaic [PV] Modules 8

F16F - SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration 8

Top 15 of 61 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

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

Kyoraku Co., Ltd.'s lead technology class is 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), 60% of its portfolio - see every assignee active in that class. Explore B29C
Ranked #2,592 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kyoraku Co., Ltd. against Eberspächer Exhaust Technology GmbH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 51.6/100 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.