USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Nippon Filcon Co., Ltd.

USPTO PatentsView assignee record - 28 granted patents across 25 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: D03D (WOVEN FABRICS; METHODS OF WEAVING; LOOMS).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

7.4

Avg claims per patent

+0%

5-year filing velocity

The verdict

Nippon holds 28 US patents across 25 technology areas, rank #11,017 of 50,000 tracked assignees.

#11,017
of 50,000 US assignees by volume: Top 23%
by Innovation Score (45.4/100): 7.4
avg claims per patent: +0%
filing velocity, last 5 yrs

Portfolio overview

Nippon Filcon Co., Ltd. has been granted 28 US utility patents between 2015 and 2025, placing Nippon Filcon Co., Ltd. at rank #11,017 across all assignees tracked by PlainPatent. This portfolio spans 25 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.4 claims per patent with primary concentration in D03D (WOVEN FABRICS; METHODS OF WEAVING; LOOMS). As a Foreign Corporation, Nippon Filcon Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Nippon sits between National Christmas Products Llc (28 patents, rank #11,013) and Nagase Chemtex Corporation (28 patents, rank #11,021) - the closest US assignees by grant volume. The composite Innovation Score of 45.4/100 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 14 grants, compared with 14 in the 2015–2019 window, a +0% 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. Nippon Filcon Co., Ltd.'s 7.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 25 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Nippon Filcon Co., Ltd. against peers pursuing similar technology classes.

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28
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28
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28
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28
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28
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28
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28
Nagase Chemtex

28
Nippon Filcon ◀

28

What this shows Nippon holds 28 patents at rank #11,017, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nippon

By rank, the assignees closest to #11,017 in granted patent volume.

Leaders in D03D (Woven Fabrics)

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

Nippon's Innovation Score vs. every tracked assignee

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

45 Top 23% higher than 77% 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

Nippon Filcon Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	14.3%
2016	4	14.3%
2017	3	10.7%
2018	2	7.1%
2019	1	3.6%
2020	2	7.1%
2021	1	3.6%
2022	1	3.6%
2023	3	10.7%
2024	3	10.7%
2025	4	14.3%

Which technologies does Nippon Filcon Co., Ltd. patent most?

D03D - WOVEN FABRICS; METHODS OF WEAVING; LOOMS 21

D21F - PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON 16

D10B - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES 12

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 6

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 5

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 3

D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS 3

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 3

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 3

D04H - MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL ; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION 3

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 3

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 2

D06C - FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS 2

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 2

C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2

Top 15 of 25 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Growing

Where it ranks

Overall rank by patents

#11,017

Across all tracked assignees

Innovation Score

45.4 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 Nippon Filcon Co., Ltd. hold?

Nippon Filcon Co., Ltd. holds 28 US granted patents filed between 2015 and 2025, spanning 25 technology areas.

What is Nippon Filcon Co., Ltd.'s Innovation Score?

Nippon Filcon Co., Ltd. has an Innovation Score of 45.4 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nippon Filcon Co., Ltd. focus on?

Nippon Filcon Co., Ltd.'s top technology area is D03D (WOVEN FABRICS; METHODS OF WEAVING; LOOMS) with 21 patents. The company has filed patents in 25 CPC subclasses total.

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

Nippon Filcon Co., Ltd.'s recent filing velocity is +0% compared to the prior five-year period. The company is maintaining or growing its patent output.

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

Nippon Filcon Co., Ltd.'s patents average 7.4 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Nippon Filcon 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

Nippon's 28 grants land it in the top 23% 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 - Nippon ranks #11,017 of 50,000. Top 50 holders
Most of this portfolio concentrates in D03D - see who else leads that technology area. D03D 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.