Texturing and Yarn Bulk Development Patents: Leaders & Filing Trends 2026
- 64.2% concentration. The top 5 of 20 ranked assignees account for 34 of the 53 records in scope, with a single leader holding 11.
- D02G dominates the claim space. 90.6% of the 53 records sit in yarn texturing and crimping (D02G), leaving finishing, spinning and testing classes comparatively open.
- Filing has not scaled into a trend. Volume stayed near zero through 2017-2023 before a peak of 10 records in 2025, too short a run to support a growth rate claim.
Top-5 share is the combined record count of the five largest assignees divided by all 53 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset tracks published patent records that combine false twist texturing or air jet texturing in the title with claims or description language touching crimp contraction, texturing speed, yarn uniformity, broken filament count, heater temperature profile or energy consumption. That search string isolates the process-control layer of texturing rather than the broader universe of synthetic yarn patents: it favours records where a filer is claiming a specific mechanical or thermal parameter of the texturing process itself.
53 records fall inside the coverage window of 2015-01-01 to 2026-07-31. Because publication typically lags filing by around 18 months, the most recent one or two years in any trend line understate actual filing activity and should be read as provisional rather than final.
Filing trend and technology composition
Two views of the same 53 records: filing activity by year, and how those records distribute across IPC subclasses. Because a single record can carry more than one classification, the subclass shares add up to well over 100% of the record total.
Filing trend, 2017-2026
Filings sat at zero in 2017 and stayed low through the early window before climbing to a peak of 10 records in 2025. The single record recorded for 2026 reflects a partial year still filling in behind the data cut-off, not a slowdown.
IPC subclass distribution
D02G (yarn texturing and crimping) covers 90.6% of the 53 records, confirming this corpus is anchored in the core texturing process rather than downstream finishing. D02J (yarn finishing) and D01F (filament and fibre features) are the next largest at 32.1% and 26.4%, with D06M, G01N, C10M and D03D each present in single-digit-to-low-double-digit shares.
Shares are the percentage of the 53 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Texturing and Yarn Bulk Development with Eureka
This page is one run against one query. Ask Eureka your own question about texturing and yarn bulk development and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records in this corpus
US4648240A — Continuous high speed spin-draw-texturing process for nylon yarn
A continuous high speed spin-draw-false twist texturing process for producing a textured nylon yarn having high yarn uniformity is disclosed. The process comprises melt-spinning nylon filaments, cooling and combining them into a yarn, controlling processing conditions so the yarn's relative viscosity reaches at least 45, partially drawing the yarn at a draw ratio of 2.3 to 3.5 at a temperature of at least 50°C, then simultaneously false twist texturing and further drawing the partially drawn yarn in a draw-false twist texturing zone.Filed by DU PONT CANADA INC., A CORP. OF CANADA, granted 1987-03-10; the second most-cited record in this corpus at 24 citations.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US4351738A | Yarn treating composition for high-speed friction draw-false twist texturing and a filamentary yarn treated w… | 42 |
| 2 | US4648240A | Continuous high speed spin-draw-texturing process for nylon yarn | 24 |
| 3 | US6199361B1 | False twist texturing machine | 23 |
| 4 | JP1990269878A | Production of false twist textured polyester yarn | 18 |
| 5 | US6026636A | Yarn false twist texturing apparatus | 17 |
| 6 | US3956878A | High speed texturing | 17 |
| 7 | US5404706A | High speed false twisting method and machine therefor | 11 |
| 8 | EP0939318A1 | False twist texturing machine | 10 |
| 9 | CN202671772U | 一种纺织用假捻变形机的变形热箱 | 8 |
| 10 | US7078096B2 | Method for producing polyester extra fine multi-filament yarn and polyester extra fine false twist textured y… | 8 |
Citation counts inside a searched corpus skew toward older filings that have had more years to accumulate citations — read them as a signal of influence on later filers, not as a measure of current commercial relevance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Each row carries its publication number; clicking a row searches Eureka by that number.
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Concentration, classification spread and citation age each point to a different practical constraint for anyone drafting new claims in this space.
Filing sits with a small group, not one dominant player
The leader holds 11 of the 53 records, but the top 5 combined reach 64.2% and the top 10 reach 83.0%. That is a concentrated field without a single monopolist, meaning freedom-to-operate work needs to clear several active filers rather than one.
Core texturing mechanics are heavily claimed
Nine in ten records touch D02G directly, confirming that crimp, draw ratio and heater-zone control are the densest part of this corpus. Adjacent classes such as D06M, G01N and C10M appear far less often, which is where less-crowded claim territory sits.
Recent activity is real but too short a run to trend
Filing climbed from zero in 2017 to a peak of 10 records in 2025, but fewer than four complete years remain once publication lag is stripped out, so no growth rate can be responsibly stated from this data.
Filing offices are split across three regions
China leads receiving offices with 15 records, ahead of the United States at 9 and the European Patent Office at 7, with the United Kingdom, Austria and Japan each in single digits. That spread suggests texturing IP is being protected multi-jurisdictionally rather than concentrated in one home market.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to texturing and yarn bulk development, with the prior art for and against each one.
Who is active, and where the gaps sit
Twenty assignees make up the entire ranked list this dataset returns. Recent-year momentum figures show that even the most active filers have pulled back sharply from prior activity, which is worth weighing against their historical filing counts.
A clear leader, but not a runaway share
The top-ranked assignee holds 11 of the 53 records in scope, roughly a fifth of the total. That leaves the remaining 42 records spread across 19 other ranked assignees plus any long tail beyond the ranking.
Recent-year activity has cooled across the board
The assignee with the single latest-year filing recorded is down 88% year-over-year, and several other previously active filers show zero filings in the latest year. This looks more like a pause after the 2025 peak than a sustained retreat, given the partial 2026 data.
Co-filing is rare in this corpus
Only one co-assignee pairing appears with meaningful strength, linking two related entities within the same corporate family. Most records in this dataset are filed by a single assignee, so joint-development signals are not a major feature of this landscape.
| Assignee | Recent year | YoY |
|---|---|---|
| Jiangsu Prade Technology Development Co., Ltd. | 1 | -88% |
| Teijin Fibers Ltd. | 0 | — |
| Trevira GmbH & Co KG | 0 | — |
| Teijin Ltd. | 0 | — |
| E.I. du Pont de Nemours and Company (USA) | 0 | — |
| Zhejiang Jingong Intelligent Textile Machinery Co., Ltd. | 0 | -100% |
| Zhejiang Jinggong Science & Technology Co., Ltd. | 0 | — |
| Murata Machinery, Ltd. | 0 | — |
Where to take this next
The landscape numbers point to specific follow-up questions rather than a single answer. Two directions are worth running down before drafting new claims or scoping freedom-to-operate.
Check freedom-to-operate against the top 10, not just the leader
With 83.0% of the 53 records held across the top 10 of 20 ranked assignees, a single-competitor clearance search will miss most of the active claim holders in this space.
Run a freedom-to-operate check in EurekaScope claims around the under-claimed subclasses
D06M, G01N and C10M each cover under 10% of the 53 records despite sitting directly adjacent to the dense D02G core, which is where new process-control claims face less prior art.
Explore white space in EurekaCommon questions about texturing patents
Within this dataset's ranked list of 20 assignees, the leading filer holds 11 of the 53 records in scope, and the top 5 combined account for 64.2% of all records. That means the field has a clear leader but is not controlled by one company outright; four other active filers each hold a meaningful share. Anyone assessing competitive exposure should look at the top 5 to top 10 collectively rather than the single leader alone, since the top 10 reach 83.0% of records between them.
D02G is the IPC subclass covering yarn texturing and crimping, and it appears in 90.6% of the 53 records in this corpus. A search or classification review limited to D02G will catch almost all core texturing-process claims, but it will miss the smaller but still relevant slice sitting in D02J (yarn finishing, 32.1%), D01F (filament and fibre features, 26.4%) and D01H (spinning and twisting, 20.8%). Because records often carry multiple classes, checking several adjacent subclasses together gives a fuller picture than D02G alone.
Filing volume in this dataset stayed near zero through the early part of the 2015-2026 window before rising to a peak of 10 records in 2025. That is too short a run of complete years, once publication lag of roughly 18 months is accounted for, to state a reliable growth rate. The single record recorded for 2026 reflects a partial year still filling in behind the data cut-off rather than a drop in activity.
US4648240A, held by Du Pont Canada, covers a continuous high-speed spin-draw-false twist texturing process for nylon yarn, with specific claimed parameters including a relative viscosity of at least 45, a draw ratio of 2.3 to 3.5, and a partial-draw temperature of at least 50°C. It is the second most-cited record in this corpus at 24 citations, meaning many later filers have positioned their own claims against it. Anyone working in nylon spin-draw-texturing should check their process parameters against these specific ranges rather than assuming the patent blocks texturing generally, since its claims are tied to defined numeric conditions.
The under-claimed areas in this dataset sit in subclasses adjacent to the dense D02G core: D06M (textile chemical treatment) at 9.4% of records, G01N (material analysis and testing) at 7.5%, and C10M (lubricants) at 5.7%. These lower shares suggest less prior art density around in-line yarn testing, texturing-specific lubricant formulations, and chemical finishing steps tied to the texturing process. That said, low filing counts also mean less evidence to gauge commercial demand, so any claim drafted there should be checked against the broader non-patent literature as well.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.