RIS Simulation & Modeling Patents: Who Leads, Early White Space 2026
- A small, young corpus. only 14 families exist worldwide for RIS-specific electromagnetic, channel and system-level simulation, with filings still at single digits per year.
- Filing is accelerating, not maturing. the count moved from zero in 2017 to a peak of 5 in 2026, with the 2022 midpoint at just 1 family — most of the growth is in the last two years.
- China and India dominate the filing venues. 7 receiving-office filings from China and 5 from India dwarf the single filings each from the US and the WIPO PCT route.
What this patent set actually covers
This landscape tracks patent families whose claims combine reconfigurable intelligent surface (RIS) or intelligent-reflecting-surface terminology with electromagnetic modeling, channel modeling, unit-cell simulation or system-level simulation language, filtered to antenna and computational-design IPC classes. It is a narrow, methods-focused slice of the broader RIS field: not hardware fabrication, not deployment case studies, but the modeling and simulation techniques that sit underneath both.
With 14 total families across the entire 2015-2026 window, this is still an emerging sub-field rather than an established one. The most recent year in the trend is understated because publication typically lags filing by around 18 months, so 2026's count of 5 will likely rise once late filings clear examination and publication.
Filing trend and technology composition
Two views of the same 14-family corpus: how filing volume has moved year over year, and which IPC subclasses the claims actually sit in.
Filings climbed from zero to a 2026 peak of five
The trend line is flat near zero through the late 2010s, ticks up to 1 family by the 2022 midpoint, then rises to 5 in 2026 — the steepest single-year jump in the dataset, though the 2026 figure is partial and will likely revise upward as publications catch up.
H04B and H04W carry nearly all the claim volume
H04B (general transmission) appears in all 14 families and H04W (wireless network architecture) in 10, meaning almost every filing frames its RIS simulation work as a transmission or network-layer problem. H04L, G06N and H01Q each appear in only 2-3 families, which is a proxy for how little claim language currently touches AI-driven modeling or antenna-level unit-cell design specifically.
Shares are the percentage of the 14 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Reconfigurable Intelligent Surface Simulation and Modeling with Eureka
This page is one run against one query. Ask Eureka your own question about reconfigurable intelligent surface simulation and modeling and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited record anchors the field
Reconfigurable intelligent surface enabled leakage suppression and signal power maximization system and method
A base station transceiver exchanges information with both a desired and an undesired wireless device, while a connected processor calculates phase shifts for a reflecting beamforming vector applied at the RIS. The phase shifts use a Kronecker decomposition of the beamforming vector so that the signal reflected toward the desired device is enhanced while the signal reaching the undesired device is suppressed.Filed by King Abdullah University of Science and Technology, published 2023-03-16 as WO2023037243A1.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | WO2023037243A1 | Reconfigurable intelligent surface enabled leakage suppression and signal power maximization system and method | 42 |
| 2 | US9698951B2 | Method and apparatus for transmitting/receiving channel state information in wireless communication system | 8 |
| 3 | CN119485648A | 基于字典优化的可重构智能表面辅助太赫兹室内定位算法 | 2 |
| 4 | CN118101000A | 一种辅助6G车与车通信的混合智能反射面功率分配优化方法 | 1 |
Citation counts reflect influence within this searched corpus, not necessarily current commercial relevance — older records accumulate citations simply by being available longer.
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. Publication numbers are shown where the record carries one (4 of 4 rows); clicking a row searches Eureka by that number.
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Three findings that shape how a team should read this corpus before deciding where to file or search for prior art.
Growth is real but the base is tiny
A move from zero to five families sounds dramatic, but the entire dataset totals only 14 families. Treat this as an early inflection point in a still-forming niche, not evidence of a crowded field.
One filing dominates citation influence
WO2023037243A1's leakage-suppression and beamforming approach is cited more than five times as often as the next record. Anyone filing adjacent claims on RIS beamforming or interference suppression should read it closely before drafting.
Filing activity is concentrated in Asia
China and India together account for 12 of the 14 tracked filings, with the US and the WIPO PCT route each contributing just one. Enforcement and freedom-to-operate analysis should prioritise these two jurisdictions first.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to reconfigurable intelligent surface simulation and modeling, with the prior art for and against each one.
A fragmented field with no repeat filer yet
Recent-year momentum shows single-filing entrants across universities and research institutes rather than a dominant assignee, which is typical for a sub-field this early in its filing history.
No assignee has filed more than once in the latest year
Lanzhou University, Kyung Hee University, the National University of Defense Technology and Vellore Institute of Technology each contributed exactly one family in the most recent year tracked. None shows repeat or accelerating filing yet.
Universities and defense-research institutes lead filing
The named assignees in this corpus skew toward academic and state-research institutions rather than telecom equipment vendors, suggesting the modeling and simulation layer is still largely a research-stage activity.
Some early filers have already gone quiet
King Abdullah University of Science and Technology and Xijing University, both present earlier in the dataset, show zero filings in the latest tracked year — an early signal worth watching rather than a confirmed exit.
| Assignee | Recent year | YoY |
|---|---|---|
| Lanzhou University | 1 | 0% |
| Kyung Hee University | 1 | — |
| National University of Defense Technology | 1 | — |
| VELLORE INSITUTE OF TECH | 1 | — |
| King Abdullah University of Science and Technology | 0 | — |
| Xijing University | 0 | — |
| Zhejiang University | 0 | — |
| Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd. | 0 | — |
Where to take this analysis
This landscape is a starting point for freedom-to-operate checks and claim drafting, not a finished answer.
Run a freedom-to-operate check against the top-cited filing
WO2023037243A1's beamforming and leakage-suppression claims sit closest to the field's centre of gravity. Any new filing touching RIS phase-shift optimisation should be checked against it first.
Search this filing in EurekaTrack the China and India filing venues directly
With 12 of 14 filings routed through China or India, monitoring new publications from these two offices will surface new entrants earlier than watching the US or PCT alone.
Set up office-level monitoring in EurekaWatch the under-claimed branches for early movers
AI-assisted channel estimation and unit-cell co-simulation currently carry the lightest claim density in this corpus. A first substantive claim there faces less crowded prior art.
Explore white space in EurekaCommon questions about RIS simulation and modeling patents
This dataset tracks 14 patent families published between 2015 and mid-2026 that combine reconfigurable intelligent surface terminology with electromagnetic, channel, unit-cell or system-level simulation language in the claims. That makes it a small, emerging sub-field compared with RIS hardware or deployment patents more broadly. The count is understated for the most recent year because publication typically lags filing by around 18 months.
The filers in this corpus are mostly universities and state-affiliated research institutes rather than telecom equipment vendors, including Lanzhou University, Kyung Hee University, the National University of Defense Technology and Vellore Institute of Technology in the most recent filing year. No single assignee has filed more than one family in the latest year, which points to a fragmented, research-stage field rather than one led by a handful of corporate players. Institutions active earlier in the window, such as King Abdullah University of Science and Technology, show reduced or zero filings in the latest tracked year.
China leads with 7 receiving-office filings, followed by India with 5; the United States and the WIPO PCT route each account for just 1. Together China and India represent the large majority of tracked filing activity, which makes them the priority jurisdictions for any freedom-to-operate or competitive-monitoring work in this space. This concentration also suggests examination practice and prior-art searching in Chinese and Indian patent offices deserves particular attention.
WO2023037243A1 claims a base-station system in which a processor calculates RIS reflecting-beamforming phase shifts using a Kronecker decomposition, so that a signal reflected toward a desired device is enhanced while the same reflection toward an undesired device is suppressed. It is the most-cited record in this corpus by a wide margin, cited 42 times against a next-highest of 8. Any new filing on RIS-based leakage suppression or joint beamforming-and-suppression control should be checked against this claim before drafting.
IPC composition shows H04B and H04W subclasses carry nearly all the claim density, appearing in 14 and 10 of the 14 families respectively, while G06N (AI-based computing) and H01Q (antennas) each appear in only 2. That gap points to under-claimed branches such as AI-assisted channel estimation, unit-cell electromagnetic co-simulation and hybrid RIS power-allocation optimisation, where claim space is comparatively open. A first substantive filing in these branches would face less crowded prior art than a general beamforming claim.
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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.