Conductive Fiber Finishing Patent Snapshot 2026
The conductive fiber finishing patent space is a small, concentrated field in decline, with 37 patent families on record and annual filings having eased substantially from their 2018 peak. Japan leads jurisdictional filing activity, and a tight cluster of academic and industrial co-filers—anchored by Oklahoma State University and Allegheny Singer Research Institute—holds the top positions.
Oklahoma State and Allegheny Singer lead a highly concentrated, mature field
The applicant evidence snapshot is sharply concentrated: the top two filers—Board of Regents for Oklahoma State University and Allegheny Singer Research Institute—are tied at the top of the ranking, each with 6 patent records, followed closely by Teijin Ltd with 5.
The top five filers account for 31% of the combined total of the ranked applicants visible in this query, a notable concentration for a 37-family corpus. The gap between the top tier (Oklahoma State and Allegheny Singer at 6 records each) and the broader field—where most applicants hold only 2 records—reflects a clear two-tier structure.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Board of Regents for Oklahoma State University | 6 | |
| 2 | Allegheny Singer Research Institute | 6 | |
| 3 | Teijin Ltd | 5 | |
| 4 | RISE Research Institute of Sweden AB | 3 | |
| 5 | RISE IVF AB | 3 | |
| 6 | Otsuka Chemical Co. Ltd | 3 | |
| 7 | Zeon Corporation | 2 | |
| 8 | Kaneka Corporation | 2 | |
| 9 | Mitsufuji Corporation | 2 | |
| 10 | Mitsubishi Materials Corporation | 2 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Harbin Institute of Technology | 2 | |
| 12 | Unitika Ltd | 2 | |
| 13 | NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD O… | 2 | |
| 14 | General Hospital of PLA | 2 | |
| 15 | Sam Gwang Dyeing | 2 | |
| 16 | Kanebo Ltd | 2 | |
| 17 | Sumitomo Bakelite Co. Ltd | 2 | |
| 18 | Chubu Pairu Industrial | 2 | |
| 19 | Shandong University | 2 | |
| 20 | Qingdao University | 2 |
The leaders’ positions are built primarily on textile chemical treatment chemistry (D06M), suggesting that the visible technical approach is surface functionalization of fibers rather than structural conductor integration. Challengers attempting entry would need to differentiate on process routes or application domains.
The most recent 18–24 months of filing data are subject to publication lag and likely under-represent actual activity; the apparent zero counts for 2024 and 2026 should not be read as a complete cessation of filings. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing volume peaked in 2018 and has trended down; textile chemical treatment dominates the technology mix
Two views together characterize the field’s current state: an annual filing trend that confirms a post-peak contraction, and a technology composition that shows D06M textile chemical treatment as the commanding branch with secondary clusters in yarn texturing, conductor design, and fiber chemistry.
Annual filing trend
Annual filings reached their highest recorded level in 2018 at 11, then contracted sharply. The multi-year window shows a 44% decline in recent growth. Years 2022 and 2024 show zero recorded filings, though proximity to the publication cutoff makes recent-year counts unreliable—interpret 2024–2026 figures with caution.
↗ Hover for values · click a bar to ask EurekaTechnology composition
D06M (textile chemical treatment) is the visible IPC class by a wide margin, reflecting an industry focus on chemical finishing routes. D02G (yarn texturing and crimping) and H01B (cables, conductors, and insulators) form a secondary tier, while medical and coating classes such as A61B and C09D indicate emerging application pull from health and functional-coating sectors.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Nonmetallic conductive geotextile and geocomposite
A nonmetallic conductive geotextile and a geocomposite. The nonmetallic conductive geotextile comprises a geotextile and a nonmetallic conductive structure, the nonmetallic conductive structure comprising one of carbon nanotube, graphene, superconductive carbon black or a combination thereof, wherein the nonmetallic conductive structure may be conductive… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | 一种基于导电纤维的柔性应变传感器的制备方法及其应用 | 60 |
| 2 | 一种石墨烯复合导电纤维的制备方法 | 56 |
| 3 | Production of conductive fiber | 31 |
| 4 | Electrically conductive fiber | 29 |
| 5 | 层层自组装复合导电纤维束及其制备方法 | 27 |
| 6 | Electrically conductive fiber sheet | 15 |
| 7 | Conductive fiber material and surface treatment me… | 13 |
| 8 | Electrically conductive fiber | 13 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Oklahoma State University
Holds 6 patent records, all co-filed with Allegheny Singer Research Institute. Technology focus is concentrated in D06M textile chemical treatment (subclasses D06M 11 and D06M 15), with secondary coverage in C08K additives in polymers and C09D coatings and inks. No applicant momentum data is available in the evidence for trajectory assessment, but the entirely collaborative nature of the portfolio makes the university’s output inseparable from its research partner.
patent records: 6Teijin Ltd
Holds 5 patent records, making it the leading independent industrial filer. Technology emphasis spans D06M textile chemical treatment (D06M 11 and D06M 101) and D02G yarn texturing and crimping—a broader structural range than the top co-filing pair. No applicant momentum data is available in the evidence, but Teijin’s engagement with both chemical and mechanical fiber modification routes positions it as the most diversified technical player in the top tier.
patent records: 5Frequently asked questions
The analyzed corpus contains 37 patent families in scope, reflecting a relatively niche and specialized field rather than a high-volume technology area.
Board of Regents for Oklahoma State University and Allegheny Singer Research Institute are tied at the top of the ranking, each with 6 patent records. All of their records are co-filed, making them effectively a single research partnership.
Japan is the leading filing jurisdiction with 23 patent records, followed by China with 20 and Europe (EPO) with 9. The United States holds only 7 patent records, indicating that the field’s commercial protection activity has historically been concentrated in Asia.
D06M (textile chemical treatment) is the visible IPC class by a substantial margin, reflecting an industry emphasis on chemical surface finishing routes for imparting conductivity to fibers. D02G (yarn texturing and crimping) and H01B (cables, conductors, and insulators) form a secondary tier.
The field is assessed as being in decline, with annual filing volume having eased back from its 2018 peak of 11 filings. The recent growth figure shows a 44% contraction. Note that the most recent 18–24 months of data are subject to publication lag and may understate current filing activity.
Three active co-filing pairs are identified. The most significant is Allegheny Singer Research Institute with Oklahoma State University, accounting for 6 co-filed records. RISE IVF AB and RISE Research Institute of Sweden share 3 co-filed records, and Qingdao University with the General Hospital of PLA share 2 co-filed records targeting medical applications.
Ready to map your own conductive fiber finishing Snapshot?
Join 18,000+ innovators using PatSnap Eureka to map any technology landscape: search 2B+ patents and papers, surface key assignees, and generate a report like this in minutes.
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.