USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chuetsu PULP & Paper Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 16 technology areas, active 2019–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: D21H (PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERW).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.2

Avg claims per patent

+300%

5-year filing velocity

The verdict

Chuetsu holds 5 US patents across 16 technology areas, rank #45,547 of 50,000 tracked assignees.

#45,547
of 50,000 US assignees by volume: Top 76%
by Innovation Score (27.5/100): 8.2
avg claims per patent: +300%
filing velocity, last 5 yrs

Portfolio overview

Chuetsu PULP & Paper Co., Ltd. has been granted 5 US utility patents between 2019 and 2025, placing Chuetsu PULP & Paper Co., Ltd. at rank #45,547 across all assignees tracked by PlainPatent. This portfolio spans 16 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.2 claims per patent with primary concentration in D21H (PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERW). As a Foreign Corporation, Chuetsu PULP & Paper Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Chuetsu sits between Christian Louboutin (5 patents, rank #45,543) and Cikautxo, S. COOP. (5 patents, rank #45,551) - the closest US assignees by grant volume. The composite Innovation Score of 27.5/100 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 4 grants, compared with 1 in the 2015–2019 window, a +300% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Chuetsu PULP & Paper Co., Ltd.'s 8.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 16 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Chuetsu PULP & Paper Co., Ltd. against peers pursuing similar technology classes.

Christian Loubout…

5
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5
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5
CHS Healthcare Ve…

5
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CIEL ET Terre Int…

5
Cikautxo S COOP

5
Chuetsu PULP & Pa… ◀

5

What this shows Chuetsu holds 5 patents at rank #45,547, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chuetsu

By rank, the assignees closest to #45,547 in granted patent volume.

Leaders in D21H (PULP Compositions)

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

Chuetsu's Innovation Score vs. every tracked assignee

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

27 Top 76% higher than 24% 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 · 2019–2025

Grants by year

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

View data table

Chuetsu PULP & Paper Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	20.0%
2020	1	20.0%
2021	1	20.0%
2022	1	20.0%
2025	1	20.0%

Which technologies does Chuetsu PULP & Paper Co., Ltd. patent most?

D21H - PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR 3

C08B - POLYSACCHARIDES; DERIVATIVES THEREOF 2

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 2

B02C - CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 2

D21J - FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE 1

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 1

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 1

C08H - DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS 1

A61Q - SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS 1

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 1

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 1

D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS 1

A01N - PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF ; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES ; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS 1

B01F - MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING 1

D21D - TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE 1

Top 15 of 16 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#45,547

Across all tracked assignees

Innovation Score

27.5 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 Chuetsu PULP & Paper Co., Ltd. hold?

Chuetsu PULP & Paper Co., Ltd. holds 5 US granted patents filed between 2019 and 2025, spanning 16 technology areas.

What is Chuetsu PULP & Paper Co., Ltd.'s Innovation Score?

Chuetsu PULP & Paper Co., Ltd. has an Innovation Score of 27.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Chuetsu PULP & Paper Co., Ltd. focus on?

Chuetsu PULP & Paper Co., Ltd.'s top technology area is D21H (PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR) with 3 patents. The company has filed patents in 16 CPC subclasses total.

Is Chuetsu PULP & Paper Co., Ltd.'s patent filing rate increasing or decreasing?

Chuetsu PULP & Paper Co., Ltd.'s recent filing velocity is +300% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Chuetsu PULP & Paper Co., Ltd.'s patents?

Chuetsu PULP & Paper Co., Ltd.'s patents average 8.2 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Chuetsu PULP & Paper 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

Chuetsu's 5 grants land it in the top 76% 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 - Chuetsu ranks #45,547 of 50,000. Top 50 holders
Most of this portfolio concentrates in D21H - see who else leads that technology area. D21H 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.