USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Teijin Limited

USPTO PatentsView assignee record - 279 granted patents across 104 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

279

Total patents granted

104

CPC technology areas

11.8

Avg claims per patent

-2%

5-year filing velocity

The verdict

Teijin holds 279 US patents across 104 technology areas, rank #1,492 of 50,000 tracked assignees.

#1,492
of 50,000 US assignees by volume: Top 5%
by Innovation Score (57.1/100): 11.8
avg claims per patent: -2%
filing velocity, last 5 yrs

Portfolio overview

Teijin Limited has been granted 279 US utility patents between 2015 and 2025, placing Teijin Limited at rank #1,492 across all assignees tracked by PlainPatent. This portfolio spans 104 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.8 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, Teijin Limited is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Teijin sits between Bridgestone Sports Co., Ltd. (279 patents, rank #1,488) and Infineon Technologies Americas Corp. (278 patents, rank #1,496) - the closest US assignees by grant volume. The composite Innovation Score of 57.1/100 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 138 grants, compared with 141 in the 2015–2019 window, a -2% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. Teijin Limited's 11.8 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Teijin Limited against peers pursuing similar technology classes.

Bridgestone Sports

279
Fireeye

279
Geotab

279
Rensselaer Polyte…

279
Teijin ◀

279
Amkor Technology…

278
Carestream Health

278
Dassault Systemes

278
Infineon Americas

278

What this shows Teijin holds 279 patents at rank #1,492, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Teijin

By rank, the assignees closest to #1,492 in granted patent volume.

Leaders in B29C (Shaping OR Joining OF Plastics)

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

Teijin's Innovation Score vs. every tracked assignee

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

57 Top 5% higher than 95% 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

Teijin Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	19	6.8%
2016	25	9.0%
2017	33	11.8%
2018	31	11.1%
2019	33	11.8%
2020	21	7.5%
2021	29	10.4%
2022	27	9.7%
2023	23	8.2%
2024	19	6.8%
2025	19	6.8%

Which technologies does Teijin Limited 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 73

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 70

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 56

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 53

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 53

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 52

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 51

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 45

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 40

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 38

D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS 26

B29L - INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES 20

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 16

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 14

D06M - TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS 14

Top 15 of 104 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Diversified

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#1,492

Across all tracked assignees

Innovation Score

57.1 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 Teijin Limited hold?

Teijin Limited holds 279 US granted patents filed between 2015 and 2025, spanning 104 technology areas.

What is Teijin Limited's Innovation Score?

Teijin Limited has an Innovation Score of 57.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Teijin Limited focus on?

Teijin Limited'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 73 patents. The company has filed patents in 104 CPC subclasses total.

Is Teijin Limited's patent filing rate increasing or decreasing?

Teijin Limited's recent filing velocity is -2% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Teijin Limited's patents?

Teijin Limited's patents average 11.8 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Teijin 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

Teijin's 279 grants land it in the top 5% 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 - Teijin ranks #1,492 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.