Company patents
COWAY Co., Ltd.
COWAY Co., Ltd. demonstrates a surprising shift in its patent strategy, with a strong historical focus on core areas like Separation Processes (28.9% of portfolio) and Water / Sewage Treatment (23.9% of portfolio), yet a notable decline in patenting activity in Separation Processes with a -46.7% YoY drop so far in 2026. While Water / Sewage Treatment showed strong growth in 2024 (+85.7% YoY) and 2025 (+23.1% YoY), its -31.2% YoY decline so far in 2026, alongside a significant -58.3% YoY drop in HVAC & Air Conditioning in 2025, suggests a potential re-evaluation of priorities within its traditional environmental and home appliance domains.
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.
197 US filings (since 2023) · 10 categories · 24 themes
Systems and methods specifically engineered for removing pollutants and impurities from water sources, ranging from groundwater decontamination to point-of-use filtration, often employing adsorption, membrane, or distillation techniques.
Membrane-based separation for water purification, contaminant removal, desalination, and wastewater treatment, including reverse osmosis, ultrafiltration, and forward osmosis modules.
Systems and materials designed for purifying biological fluids (like blood) or capturing airborne particles (like respiratory droplets) using membranes, filters, or specialized coatings.
Technologies focused on improving indoor air quality by removing pollutants, microorganisms, or excess humidity, often employing specialized materials, filtration, or air circulation strategies.
Integrated systems within refrigerators for dispensing chilled water, ice, or preparing beverages, often including filtration, storage components, and user interface controls.
Non-chemical or non-biological methods that alter the physical properties or structure of water, often claimed to improve its quality or interaction with biological systems, such as vortexing or electromagnetic treatment.
Membrane and depth filtration for industrial separation, gas purification, and bioprocess clarification including cross-flow, dead-end, tangential flow filtration, and oil/water separation.
Systems specifically engineered to use sprayed liquids or aerosols for cleaning surfaces, removing residues, or distributing disinfectants in various environments.
Innovations in mattresses, pillows, and other soft furnishings designed to improve user comfort, support, temperature regulation, or provide therapeutic benefits.
Integration of mechanisms, sensors, and actuators to provide dynamic adjustments for user comfort, such as lumbar support, reclining positions, massage functions, or controlled movement.
Novel designs and configurations for heat exchangers that improve heat transfer efficiency, compactness, or enable specific phase change or separation processes within refrigeration and heat pump cycles.
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.
Self-contained or portable units designed for maintaining specific temperatures for food, beverages, or sensitive items during transport, often incorporating active cooling or smart monitoring features.
Non-traditional refrigeration and heat pump systems that utilize principles other than vapor compression, such as magnetocaloric effects, thermoelectric effects, absorption cycles, or thermochemical reactions.
Innovations in nozzle internal geometry, actuation, or multi-fluid mixing to achieve specific spray patterns, droplet sizes, or performance characteristics, especially for challenging fluids or conditions.
Design of power driver circuits for electric loads (e.g., LEDs, heating elements) focusing on efficiency, stability, noise reduction, and compensation for component degradation.
Methods and apparatus for disinfecting or sterilizing medical devices, waste, or environments, often employing radiation, chemical agents, or thermal processes, and including monitoring systems.
Specific techniques and materials developed to remove persistent or difficult-to-treat pollutants from water, such as per- and polyfluoroalkyl substances (PFAS), micropollutants, or specific industrial chemicals.
Design principles and connection methods that facilitate the easy assembly, disassembly, reconfiguration, or integration of functional modules and components in furniture systems.
Household articles engineered with mechanisms for folding, retracting, or collapsing to reduce their footprint, facilitate storage, or enable portability.
Design and control strategies for improving the efficiency, stability, and operational flexibility of refrigerant circuits, including component integration, flow management, phase separation, and pressure regulation.
Systems and methods for accurately controlling the volume, location, and characteristics of sprayed fluids, often involving sensors, feedback, or specific nozzle geometries for precise application.
Processes that use strong oxidants, electrochemical methods, sonic waves, or other energy-intensive techniques to break down organic pollutants, disinfect water, or facilitate contaminant separation.
Use of specialized materials and structures, such as vacuum insulation panels or phase change materials, to improve thermal efficiency and maintain stable temperatures within refrigeration appliances.
Patents
Showing 1-10 of 270