Company patents
EM-TECH Co., Ltd.
EM-TECH Co., Ltd. appears to be significantly shifting its patent strategy away from its core Loudspeakers & Microphones category, which still represents 64.9% of its portfolio but has seen a sharp decline of 37.5% in 2025 and 80.0% so far in 2026. Surprisingly, while most categories show a decline or stagnation, the company had an emerging focus in Smoking Articles, which grew by 100.0% in 2025, before seeing a complete halt in patenting so far in 2026, indicating a highly volatile and potentially exploratory approach to new areas.
Patent Trend by Technology Area
Yearly patent publications since 2023
Product themes
Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.
37 US filings (since 2023) · 11 categories · 14 themes
Engineering solutions for optimizing the acoustic performance and mechanical stability of loudspeakers, including diaphragm materials, spider geometries, vibration suppression, and integration into other devices.
Design and manufacturing techniques for microelectromechanical systems (MEMS) microphones, focusing on physical components like diaphragms, movable masses, and housing for improved performance, heat management, or fluid interaction.
Integration of advanced functionalities into headphones, earphones, or hearing aids, such as multi-device connectivity, health monitoring sensors, custom fitting mechanisms, and intelligent audio switching or control.
Innovations in the composition, storage, and controlled release of aerosol-generating materials, including liquids, tobacco, and additives. This covers reservoirs, wicking, and material properties for consistent aerosol generation.
Focuses on novel heating elements, power delivery, and thermal management for efficient and controlled aerosol generation. This includes resistive, inductive, and other heating methods, as well as heat distribution and retention.
Development of devices and methods for non-invasive or minimally invasive collection and analysis of physiological data, often from wearable sensors, to monitor health, activity, or specific conditions.
Signal processing techniques for multi-microphone systems to enhance desired audio signals and suppress noise or interference by spatially filtering sound sources, improving signal-to-noise ratio and channel separation.
Integration of sensors, microprocessors, and AI systems to monitor device status, user behavior, and aerosol delivery parameters, enabling intelligent operation, dosage control, and predictive maintenance.
Apparatus and methods specifically designed for cleaning components of smoking or vaping vessels, addressing residue buildup and hygiene to ensure device longevity and user experience.
Methods and structures for integrating and enclosing electronic components into compact, multi-functional modules, often involving embedded components, multi-layer substrates, and electromagnetic shielding for performance and miniaturization.
Manufacturing processes and material compositions for creating electronic circuits on flexible or conformable substrates, enabling novel form factors, enhanced durability, and new applications beyond rigid PCBs.
Design and construction of aerosol provision devices focusing on modularity, ease of use, article reception, sealing, and user interface elements like displays or ergonomic grips.
Temperature sensing systems integrated into wearable devices or medical apparatus for monitoring physiological conditions, such as inflammation detection, often utilizing differential temperature measurements.
Focuses on the design, fabrication, and application of piezoelectric materials and devices for sensing, actuation, or wave generation, including material properties, single crystal growth, and protective layers.
Patents
Showing 1-10 of 29
Smart Hearable Device Features