SiC Techno-Economic Patent Snapshot 2026
This is a small, research-institute-led corpus dominated by ceramics and refractories applications, with the Council of Scientific and Industrial Research holding the leading position by a clear margin. Activity peaked around 2021 and has since eased, leaving several adjacent technology branches with sparse coverage relative to their apparent technical relevance.
Research institutes dominate a concentrated, refractory-focused corpus
The Council of Scientific and Industrial Research (CSIR) ranks first among filers, followed by Rosemount Inc and William Marsh Rice University. The top five filers account for 42% of the combined total across the ranked applicants visible in this query, signalling a notably concentrated field.
A clear tier gap separates the leader from the rest: CSIR holds the top position with 10 patent records, while the next-ranked filer holds 5 and most others cluster at 1–2 records each. There is no second-tier bloc of meaningful scale.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | COUNCIL OF SCI & IND RES | 10 | |
| 2 | Rosemount Inc | 5 | |
| 3 | William Marsh Rice University | 4 | |
| 4 | Korea Atomic Energy Research Institute | 3 | |
| 5 | Indian Institute of Technology Bhubaneswar | 2 | |
| 6 | Thor Energy AS | 2 | |
| 7 | Beijing New Vision Building Construction Technology Co., Ltd. | 2 | |
| 8 | China Jingye Engineering Technology Co., Ltd. | 2 | |
| 9 | Yixing Longchen Furnace Charge Co., Ltd. | 2 | |
| 10 | Steel Authority of India Ltd. | 2 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Changshu Dingtianhe Machinery Co., Ltd. | 2 | |
| 12 | Indian Institute of Technology Bombay | 2 | |
| 13 | CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP | 2 | |
| 14 | Tongda Refractory Technology Co., Ltd. | 1 | |
| 15 | Kelly Julian F | 1 | |
| 16 | Suntar Membrane Technology (Xiamen) Co., Ltd. | 1 | |
| 17 | A. O. Smith Corporation | 1 | |
| 18 | Gongyi Tongda Zhongyuan Refractory Technology Co., Ltd. | 1 | |
| 19 | Tsinghua University | 1 | |
| 20 | Hyundai Motor Company | 1 |
The dominance of academic and government research bodies — CSIR, William Marsh Rice University, the Korea Atomic Energy Research Institute, and the Indian Institutes of Technology — suggests that commercial IP development in SiC techno-economic applications remains early-stage, with fundamental research still driving the agenda.
Filings in 2024–2026 should be treated as under-counted given standard publication lag; apparent low volume in those years does not necessarily reflect reduced activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing peaked in 2021; ceramics and refractories account for most activity
The annual filing trend and technology composition charts together show a field that expanded through 2021 and has since moderated, while remaining concentrated in a single visible IPC class. Adjacent branches are present but individually sparse.
Annual filing trend
Filings were negligible before 2019, rose to a peak in 2021, and have since eased. Values for 2024–2026 are likely under-counted due to publication lag and should not be read as confirmation of continued decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
C04B (ceramics, cement, and refractories) is visible in the technology mix. G01K (temperature measurement) and H01M (batteries, cells, and fuel cells) each appear as secondary branches, with a long tail of IPC classes represented by only one or two records each.
↗ 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.
Die division method and inspection apparatus for a…
The present invention relates to a die division method and an inspection apparatus for avoiding a defect of a wafer, wherein a defect of a silicon carbide wafer or an epitaxial layer thereupon is inspected to specify the location thereof, and the location of a scribe line which is a division line forming a spacing between dies adjacent to each other is then… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Nuclear reactor fuel element having silicon carbid… | 31 |
| 2 | Nuclear reactor fuel element having silicon carbid… | 19 |
| 3 | Power connection apparatus having integrated surge… | 17 |
| 4 | 一种水泥回转窑用抗结皮耐磨砖及其制造方法 | 14 |
| 5 | 环保型高炉出铁沟捣打料及其制备方法 | 8 |
| 6 | 超高温储热材料及其制备方法和应用 | 3 |
| 7 | Metal coating method and metal member comprising c… | 3 |
| 8 | 碳化硅复合刚玉莫来石砖及其制备方法 | 3 |
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.
Council of Scientific and Industrial Research (CSIR)
CSIR’s portfolio is concentrated in C04B 35 (ceramics and refractories), with secondary filings in coating processes (B05D 3) and broader ceramics subclasses (C04B 30). With 10 patent records, CSIR holds more than double the next-ranked filer’s count, anchoring India’s lead-office position. No momentum trend data is available for CSIR in the evidence, so trajectory is evidence pending.
patent records: 10William Marsh Rice University
Rice University holds 4 patent records and is flagged as a new entrant in the momentum data, having filed all recent records within the latest period. Its technology emphasis spans C04B 35 (ceramics), C01B 32 (non-metallic elements and inorganic compounds), and H01M 4 (battery electrode materials), making it the only top-three filer with a meaningful energy-storage dimension. This cross-domain focus could position it as a bridge between structural and electrochemical SiC applications.
patent records: 4Frequently asked questions
The corpus contains 25 patent families in scope, making it a small, specialist dataset. This size reflects the niche intersection of SiC materials science with techno-economic framing rather than the broader SiC device or power-electronics literature.
The Council of Scientific and Industrial Research (CSIR) leads with 10 patent records, more than double the next-ranked filer. CSIR’s focus is concentrated in ceramic and refractory subclasses (C04B 35, C04B 30) with secondary coverage in coating processes.
India leads by jurisdiction with 17 patent records, consistent with CSIR’s visible position. China follows with 12 records, and the United States accounts for 9. PCT filings add 6 records with international coverage.
The evidence classifies the field as declining, with annual filings easing back from the 2021 peak and a recent-window growth figure of -23%. Filings from 2024 onward remain subject to publication lag and should not be read as confirmation of further decline.
Yes, but they are narrow. The only recorded co-filing activity is a three-way consortium of Chinese construction and refractory companies — Beijing New Vision Building Construction Technology, China Jingye Engineering Technology (Shenzhen), and the Central Research Institute of Building and Construction (MCC Group) — each pair having co-filed 2 patent records.
H01M (batteries, cells, and fuel cells), B33Y (additive manufacturing), and B22F (powder metallurgy) each account for only 3–5 patent records. These branches have plausible technical connections to SiC properties but remain sparsely covered, suggesting limited incumbent IP for new entrants with relevant process capabilities.
Ready to map your own SiC Technology 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.