SOPHIA ANTIPOLIS, France, March 16, 2026 │ KnowMade announces the release of its latest patent landscape report, RF Acoustic Wave Filters – Patent Landscape Analysis 2026, providing a comprehensive overview of how global innovation and intellectual property (IP) strategies are shaping the evolution of RF acoustic wave filter technologies.
RF acoustic wave filters sit at the heart of modern RF front-ends, where the rapid growth in frequency bands, carrier aggregation and increasingly complex coexistence constraints are pushing filter technologies far beyond traditional performance requirements. As 5G architectures mature and RF front-end modules become more integrated, innovation is progressively shifting from isolated resonator improvements toward platform-level acoustic engineering, combining materials, acoustic stacks, temperature stabilization, parasitic control and RF packaging into optimized system solutions.
The report analyzes more than 15,400 patent families (over 34,800 patent publications) related to RF acoustic wave technologies. Nearly half of these patent families were filed since 2020, highlighting a strong post-5G acceleration in innovation activity. This growth reflects the increasing complexity of RF front-end architectures and the rising demand for high-performance filtering solutions across mobile communications, wireless connectivity and emerging high-frequency applications.
Figure 1: Time evolution of patent publications related to RF acoustic wave filters until December 2025.
A Rapidly Evolving Competitive Landscape
The RF acoustic wave ecosystem is experiencing a clear evolution in its competitive structure. Historically dominated by early pioneers such as Hitachi, NEC, Philips and Fujitsu, the industry has progressively shifted toward a new generation of established technology leaders and emerging innovators.
Today, a group of IP leaders including Murata, Qualcomm, Qorvo, Skyworks and Taiyo Yuden form the technological backbone of the global RF acoustic wave industry. These companies combine strong enforceable patent portfolios with continuous innovation in advanced resonator architectures and RF front-end integration.
Alongside these IP leaders, several companies have established themselves as major IP contributors, including Kyocera, Broadcom, Samsung Electro-Mechanics, Samsung Electronics, Wisol and Soitec, which maintain strong patenting activity across multiple acoustic device platforms and materials technologies.
At the same time, the competitive landscape is becoming increasingly dynamic with the rise of new IP players, particularly within the Chinese ecosystem. Since around 2015, several companies have significantly accelerated their patenting activity in resonator platforms, materials engineering and RF front-end integration technologies. More recently, a new layer of IP newcomers emerging after 2022 is further increasing the density of competition, especially in high-frequency platforms such as TFSAW, XBAR and advanced acoustic stacks.
Geographically, the RF acoustic wave patent landscape is structured around three major innovation regions: Japan, the United States and China. Japanese companies continue to hold strong leadership positions in terms of granted patents, while US players maintain a major influence in RF system-level integration. Meanwhile, Chinese companies have rapidly expanded their patent portfolios in recent years and are becoming increasingly visible across multiple technology segments.
Among the most established Chinese patent holders are Huawei, ROFS Microsystem and MEMSonics, while a growing group of companies including Newsonic, Sanan IC, NSI Corp, Sappland Microelectronics, StarShine and RadRock are actively building competitive IP portfolios across resonator technologies and RF front-end integration platforms.
Figure 2: Timeline of main patent assignees for RF acoustic wave filters
Technology Segmentation and Innovation Dynamics
To provide a detailed understanding of innovation trends, the report introduces a structured technology segmentation covering 14 technological domains across the RF acoustic wave value chain. This framework builds upon the segmentation introduced in the 2024 edition of the report, while placing a particular focus on patents published since June 2023, enabling the identification of the most recent innovation directions.
The analysis covers a wide range of acoustic device platforms, including SAW, BAW, AWF modules, temperature-compensated acoustic wave devices, FBAR, XBAR, TFSAW and SMR technologies. It also addresses enabling material technologies such as composite substrates like quartz, sapphire, SiC and diamond and also piezoelectric layers, with dedicated focuses on lithium niobate (LN), lithium tantalate (LT) and other material approaches.
For each segment, the report provides portfolio analysis, identification of main patent assignees, and highlights of recent innovations and selected notable patents, allowing readers to understand where innovation activity is concentrated and which technological platforms are shaping the next generation of RF acoustic wave filtering solutions.
IP Leadership Evolution and Key Industry Players
The study also provides a detailed analysis of how IP leadership of patent assignees has evolved between 2023 and 2026, revealing shifting competitive positions across the industry. While long-established IP leaders maintain strong patent portfolios, several emerging companies are rapidly increasing their patenting activity and expanding their technological coverage.
To better understand these dynamics, the report includes in-depth IP profiles of 20 strategically important companies, including 11 global IP leaders and major contributors and 9 companies showing strong momentum within the Chinese ecosystem.
Figure 3: Most established IP players in China for RF acoustic wave filters
Each company profile analyzes:
- the evolution of its patent portfolio
- the balance between granted patents and pending patent apllications
- the technological segmentation of its inventions
- the geographic patenting strategies
- the recent innovation directions
- the selected notable patents
This structured approach provides a clear view of how leading players position themselves across different acoustic platforms and how the global RF acoustic wave ecosystem is evolving.
Report Highlights
Report Package
- 180+ slide PDF report
- Methodology, executive summary and full patent landscape analysis
- Extensive Excel database with all patent families analyzed in this study
- One-hour online presentation with the report’s author (results + Q&A)
- Interactive dashboard (optional)
Patent Landscape Overview
- Global IP trends and publication time-evolution
- Geographic distribution of patent filings
- Major patent assignees and ecosystem timeline
- Newcomers driving recent innovation
- IP leadership evolution (2023 vs 2026)
- Geographic coverage of top players’ patent portfolio
- High-impact patent assignees and notable IP portfolios
- IP ecosystems including co-owned patents
- S. litigations and legal status insights
Technology Segmentation & Innovation Layers
The report provides a detailed segmentation of patents across all major RF AWF approaches, including:
- Devices: SAW, BAW, AWF Modules, Temperature compensated AWF devices, FBAR, XBAR, TFSAW, SMR
- Composite substrate materials (quartz, sapphire, SiC and diamond)
- Piezoelectric layer materials (lithium niobate, lithium tantalate, and other material approaches)
Each segment is analyzed through a consistent framework: segment definition, portfolio overview, leading assignees, innovation directions and representative patented inventions.
IP Evolution & Players IP Profiles
The study offers a data-driven view of how RF AWF IP leadership has shifted, analyzing competitive dynamics using patent volume, growth rate, legal status, geography and technology coverage. A structured and comparable IP profile analysis covers 20 influential RF AWF patent assignees, reflecting the structure of the global ecosystem:
- IP Leaders: Murata, Skyworks, Qualcomm, Qorvo, Taiyo Yuden
- Main IP Players: Kyocera, Broadcom, Samsung Electro-Mechanics, Samsung Electronics, Wisol, Soitec
- China Ecosystem:
- Most established IP players in China: Huawei, ROFS Microsystem, MEMSonics
- Other notable Chinese players: Newsonic, Sanan IC, NSI Corp, Sappland Microelectronics, StarShine, Radrock
Each profile includes IP dynamics, geographical footprint, technical segmentation and recent patent activities, offering a clear and consistent view of how different categories of players shape the global RF AWF innovation landscape.
Excel Patent Database
- Complete dataset of 15,400+ patent families
- Focus set of 3,800+ families since June 2023
- Segmentation fields and direct hyperlinks to the updated online database
Interactive Dashboard (optional)
The interactive dashboard delivers immediate visual answers to critical questions, enabling faster and more informed strategic decision-making:
- Dynamically explore the patent landscape by applicant, technology, geographical area, publication period, and legal status
- Instantly drill down into key insights, from high-level trends to individual players and patents
- Tailor the analysis to R&D, IP, strategy, business development needs
Strategic Insights
This report equips executives, R&D teams, and IP professionals with the tools to:
- Align innovation strategies with patent and innovations dynamics.
- Strengthen competitive positioning by identifying both IP leaders and fast-moving IP newcomers.
- Secure freedom-to-operate through in-depth portfolio benchmarking and ecosystem mapping.
- Anticipate technological trajectories in one of the most competitive IP battlefields in autonomy.
Companies mentioned in the report (non-exhaustive)
Murata, Skyworks, MEMSonics, Newsonic, RadRock (Ruishi Chuangxin), Huawei, CETC, StarShine Semiconductor, Sanan IC, Taiyo Yuden, Qorvo, Qualcomm, Chemsemi, Maxscend, Tiantong Ruihong Technology (Enicom), AIFO, Huntersun, Vanchip, Kyocera, Sappland Microelectronics, Shoulder Electronics, NSI Corp, Shanghai Xinou Integrated Microelectronics, GrandeurRF, Soitec, Wisol, BOE, Beijing Xinxin Semiconductor, Shanghai Institute of Microsystem and Information Technology (SIMIT), Lansus, Anhui Anuki Technologies, EPiCMEMS, Bosch, Samsung Electronics, Beijing Aerospace Micro-Electronics Technology, Beijing Metamaterial Info Tech, Honor Device, Nitto Denko, Soundcore Electronics, Hangzhou Shuxin Electronic Technology, Pinnacle Microwave, AAC Technologies, Samsung Electro-Mechanics, Chenchenchen Technology, ROFS Microsystem, Sunto Microelectronics, Shanghai Novel Si Integration Technology, Shanghai University, Wuhan University, Xintou Microelectronics, Suzhou Zhenxin Microelectronics, Texas Instruments, Xiamen University, Zhongxun Sifang, Fujian Sunwise Semiconductor Technology, Microgate Technology, North Latitude 38th Degree Integrated Circuit Manufacturing, Sinovision, Xiamen Sky Semiconductor, Yunji Xinguang Zhuhai Microelectronics, Zhejiang Huayuan Micro Electronic Technology, Oppo Mobile, Ruisi Microsystems, Zhongwei Longtu Electronic Technology and more.
Press contact
contact@knowmade.fr
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www.knowmade.com
About the author
Yanni Zhou, PhD., works at KnowMade in the field of RF Technologies for Wireless Communications, Sensing, and Imaging. She holds a Ph.D. in RF and Wireless Communication from the University of Lyon, INSA Lyon, INRIA, France, and an Engineer’s Degree in Electrical Engineering from INSA Lyon, France. Yanni previously worked at Nokia Bell Labs, Strategy & Technology, focusing on RF front-end systems and advanced sensing technologies. Her expertise also includes the design of radar sensing systems, enabling precise detection in complex and dynamic environments. She is the inventor of over 20 patents and has authored more than 10 scientific publications in the field.
About KnowMade
KnowMade is a technology intelligence and IP strategy firm specializing in the analysis of patents and scientific publications. We assist innovative companies, investors, and research organizations in understanding the competitive landscape, anticipating technological trends, identifying opportunities and risks, improving their R&D, and shaping effective IP strategies.
KnowMade’s analysts combine their strong technology expertise and in-depth knowledge of patents with powerful analytics tools and methodologies to transform patent and scientific data into actionable insights to support decision-making in R&D, innovation, investment, and intellectual property.
KnowMade has solid expertise in Semiconductors and Packaging, Power Electronics, Batteries and Energy Management, RF and Wireless Communications, Photonics, MEMS, Sensing and Imaging, Medical Devices, Biotechnology, Pharmaceuticals, and Agri-Food.