USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Gunze Limited

USPTO PatentsView assignee record - 40 granted patents across 40 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: B32B (LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM).

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

6.1

Avg claims per patent

-14%

5-year grant velocity

The verdict

According to USPTO PatentsView, Gunze ranks #8,040 of 50,000 tracked US assignees by granted-patent volume, with 40 patents across 40 technology areas.

#8,040
of 50,000 US assignees by volume: Top 18%
by Innovation Score (47.7/100): 6.1
avg claims per patent: -14%
grant velocity, last 5 yrs

Portfolio overview

Gunze Limited has been granted 40 US utility patents between 2015 and 2025, placing Gunze Limited at #8,040 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 40 distinct Cooperative Patent Classification (CPC) subclasses, averaging 6.1 claims per patent with primary concentration in B32B (LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM). As a Foreign Corporation, Gunze Limited is one of the more focused assignees in the PatentsView dataset. By volume, Gunze sits between GCP Applied Technologies Inc. (40 patents, rank #8,034) and Heraeus Noblelight Gmbh (40 patents, rank #8,042) - the closest US assignees by grant volume. The composite Innovation Score of 47.7/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 18 grants, compared with 21 in the 2015–2019 window, a -14% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Gunze Limited's 6.1 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 40 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

GCP Applied

40
Ghost Autonomy

40
Guandong Ocean Un…

40
Guardian Europe R…

40
Green Cross

40
Guangdong Midea W…

40
Hangzhou ZERO ZER…

40
Heraeus Noblelight

40
Gunze ◀

40

What this shows Gunze holds 40 patents at rank #8,038, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Gunze

By rank, the assignees closest to #8,038 in granted patent volume.

Leaders in B32B (Layered Products)

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

Gunze's Innovation Score vs. every tracked assignee

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

48 Top 18% higher than 82% 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

Gunze Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	12.5%
2016	3	7.5%
2017	6	15.0%
2018	4	10.0%
2019	3	7.5%
2020	3	7.5%
2021	3	7.5%
2022	5	12.5%
2023	3	7.5%
2024	4	10.0%
2025partial year	1	2.5%

Which technologies does Gunze Limited patent most?

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 14

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 9

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 8

A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES 8

G09F - DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS 7

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 7

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 6

A61M - DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY ; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY ; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR 5

G06F - ELECTRIC DIGITAL DATA PROCESSING 5

C09J - ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES 4

A61B - DIAGNOSIS; SURGERY; IDENTIFICATION 4

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 3

B29L - INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES 3

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 2

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 2

Top 15 of 40 technology areas

Grant record at a glance

Portfolio Volume 40 grants

CPC subclasses 40

Avg. claims / grant 6.1

Velocity -14%

Historical grant data only; it does not rate legal strength or current strategy.

Where it ranks

Overall rank by patents

#8,040

of 50,000 tracked assignees

Innovation Score

47.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

Where does Gunze Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Gunze Limited ranks #8,040 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Gunze Limited hold?

Gunze Limited holds 40 US utility patents granted between 2015 and 2025, spanning 40 technology areas.

What is Gunze Limited's Innovation Score?

Gunze Limited has an Innovation Score of 47.7 out of 100 (top 18% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Gunze Limited focus on?

Gunze Limited's top technology area is B32B (LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM) with 14 patents. Grants appear in 40 CPC subclasses total.

Is Gunze Limited's patent grant rate increasing or decreasing?

Gunze Limited's recent grant velocity is -14% 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 Gunze Limited's patents?

Gunze Limited's patents average 6.1 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 Gunze Limited 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

Gunze's 40 grants land it in the top 18% 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 - Gunze ranks #8,040 of 50,000. Top 50 holders
Most of this portfolio concentrates in B32B - see who else leads that technology area. B32B 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

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.