USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Kyoraku Co., Ltd.

USPTO PatentsView assignee record - 150 granted patents across 61 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. 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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

150

Total patents granted

CPC technology areas

8.4

Avg claims per patent

+42%

5-year filing velocity

The verdict

Kyoraku holds 150 US patents across 61 technology areas, rank #2,592 of 50,000 tracked assignees.

#2,592
of 50,000 US assignees by volume: Top 11%
by Innovation Score (51.6/100): 8.4
avg claims per patent: +42%
filing velocity, last 5 yrs

Portfolio overview

Kyoraku Co., Ltd. has been granted 150 US utility patents between 2015 and 2025, placing Kyoraku Co., Ltd. at rank #2,592 across all assignees tracked by PlainPatent. This portfolio spans 61 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.4 claims per patent with primary concentration in 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). As a Foreign Corporation, Kyoraku Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Kyoraku sits between Eberspächer Exhaust Technology Gmbh (150 patents, rank #2,588) and Samsara Inc. (150 patents, rank #2,596) - the closest US assignees by grant volume. The composite Innovation Score of 51.6/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 88 grants, compared with 62 in the 2015–2019 window, a +42% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Kyoraku Co., Ltd.'s 8.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 61 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Kyoraku Co., Ltd. against peers pursuing similar technology classes.

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.

Kyoraku's Innovation Score vs. every tracked assignee

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

52 Top 11% higher than 89% of 50,000 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%
2025	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

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Growing

Where it ranks

Overall rank by patents

#2,592

Across all tracked assignees

Innovation Score

51.6 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Kyoraku Co., Ltd. hold?

Kyoraku Co., Ltd. holds 150 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

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. The company has filed patents in 61 CPC subclasses total.

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

Kyoraku Co., Ltd.'s recent filing velocity is +42% compared to the prior five-year period. The company is maintaining or growing its 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 relatively simple claim structure, typical for focused inventions.

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.

How to use this portfolio

Kyoraku's 150 grants land it in the top 11% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Kyoraku ranks #2,592 of 50,000. Top 50 holders
Most of this portfolio concentrates in B29C - see who else leads that technology area. B29C leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.