Company patents

Doosan Enerbility Co., Ltd.

Doosan Enerbility Co., Ltd. shows a surprising shift away from its core "Steam / Gas Turbines" and "Gas Turbine Plants" categories, which collectively represent over 56% of its portfolio but have seen significant declines, with "Steam / Gas Turbines" dropping 31.2% in 2025 and 59.1% so far in 2026. While many categories are declining, "Heat Exchange Components" is an emerging focus, showing a 100.0% growth so far in 2026 after a dramatic 500.0% increase in 2024, indicating a strategic pivot towards specific manufacturing innovations.

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.

323 US filings (since 2023) · 12 categories · 30 themes

Auxiliary Systems & Maintenance

Support systems for gas turbine engines, including specialized pumps, cleaning methods for engine components, mobile power generation units, and specific structural components like joints and fasteners.

Gas Turbine Plants
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105since 2023
-36.4%YoY
Flexible Fuel Combustors

Combustor and fuel supply system designs that enable operation with multiple fuel types (e.g., conventional, ammonia, hydrogen) or optimize fuel-air mixing for improved efficiency, reduced emissions, or specific power cycles.

Gas Turbine Plants
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96since 2023
-37.1%YoY
Turbine Condition Monitoring & Diagnostics

Systems and methods for real-time or periodic assessment of turbine engine health, including detection of wear, damage, unbalance, or deterioration, to enable predictive maintenance and extend operational life.

Steam / Gas Turbines
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77since 2023
0.0%YoY
Hybrid Electric Propulsion Integration

Integration of electric machines, energy storage, and power transfer systems with gas turbine engines to enable hybrid operation, electric starting, or auxiliary power generation, improving efficiency or operational flexibility.

Gas Turbine PlantsSteam / Gas Turbines
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66since 2023
-27.8%YoY
Internal Flow Path Optimization

Techniques and structures within heat exchangers designed to enhance heat transfer efficiency by controlling and optimizing fluid flow, including baffle arrangements, jet impingement, and condensate management.

Steam / Gas TurbinesGas Turbine PlantsHeat Exchange Components
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64since 2023
-54.2%YoY
Advanced Materials & Manufacturing

Focuses on the development and application of novel materials, coatings, and manufacturing processes to improve the performance, durability, and cost-effectiveness of turbine engine components.

Steam / Gas Turbines
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42since 2023
+9.1%YoY
Hydrogen Production Catalysis

Catalytic processes and novel catalyst materials designed to efficiently produce hydrogen gas from various feedstocks, including hydrocarbons (e.g., methane, natural gas) and ammonia.

Non-metallic Inorganic Compounds
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17since 2023
-75.0%YoY
Advanced Sealing and Valve Design

Innovations in the design, materials, and maintenance of seals, valves, and related components to improve durability, reduce leakage, and enable specific pump functions like high-pressure operation or automated seal replacement.

Steam / Gas Turbines
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14since 2023
-62.5%YoY
Intelligent Monitoring & Control

Systems and methods that use sensors, data analysis, and automation to monitor water quality, process parameters, or system performance, enabling adaptive control, predictive maintenance, or incentive-based management.

Water / Sewage Treatment
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11since 2023
new
Advanced Heat Exchanger Architectures

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.

Heat Exchange Components
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11since 2023
-85.7%YoY
Automated Visual Inspection

Systems that employ imaging and image processing to automatically detect defects, verify states, or ensure quality control in manufactured goods, printed materials, or industrial processes.

Material & Chemical Analysis
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10since 2023
+200.0%YoY
Water & Wastewater Membrane Treatment

Membrane-based separation for water purification, contaminant removal, desalination, and wastewater treatment, including reverse osmosis, ultrafiltration, and forward osmosis modules.

Water / Sewage TreatmentSeparation Processes (Filtration, Distillation)
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8since 2023
n/a
Advanced Oxidation & Disinfection

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.

Water / Sewage Treatment
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6since 2023
n/a
Water Contaminant Remediation

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.

Separation Processes (Filtration, Distillation)
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6since 2023
n/a
Physical Water Conditioning

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.

Water / Sewage Treatment
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5since 2023
0.0%YoY
Predictive Maintenance & Anomaly Detection

Utilizing sensor data, historical performance, and analytical models to anticipate equipment failures, diagnose faults, and estimate remaining useful life, thereby enabling proactive maintenance and reducing downtime.

Industrial Control Systems
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4since 2023
0.0%YoY
AI for Medical Diagnostics

Utilizing machine learning, particularly deep learning, to analyze medical data such as images, sensor readings, or physiological signals for disease prediction, diagnosis, or treatment assessment.

Image Processing
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3since 2023
new
Gas Stream Purification

Technologies and systems for removing unwanted components or separating desired gases from a mixed gas stream, including adsorption, absorption, and membrane-based methods.

Separation Processes (Filtration, Distillation)
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3since 2023
-50.0%YoY
Two-Phase Cooling Devices

Heat transfer devices that utilize the phase change of a working fluid (evaporation and condensation) to efficiently move heat, often incorporating capillary structures, heat pipes, or vapor chambers.

Heat Exchange Components
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3since 2023
0.0%YoY
AM Process Monitoring & Control

Systems and methods for real-time sensing, modeling, and closed-loop control of additive manufacturing parameters to ensure part quality, consistency, and process efficiency. This includes thermal management, atmospheric regulation, and precise material deposition.

Industrial Control Systems
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3since 2023
n/a
Generative AI for Images

Techniques utilizing deep learning models like Generative Adversarial Networks (GANs) or diffusion models to create new images, modify existing ones, or generate synthetic data based on various inputs or conditions.

Image Processing
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2since 2023
new
AI/ML for Industrial Process Optimizationfiltered

Applying machine learning and artificial intelligence models to analyze industrial data, predict system behavior, and optimize control strategies for improved efficiency, quality, or environmental compliance in manufacturing and operations.

Industrial Control Systems
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2since 2023
n/a
Enhanced Surface Fin Geometries

Design and optimization of fin structures, baffles, and surface textures within heat exchangers to increase heat transfer area, promote turbulence, or manage fluid flow for improved thermal performance.

Heat Exchange Components
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1since 2023
new
Digital Twins & Blockchain for Assets

Creating virtual representations (digital twins) of physical industrial assets or processes for simulation and analysis, often combined with blockchain technology for secure data traceability and distributed control.

Industrial Control Systems
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1since 2023
new
Industrial Energy Management Systems

Control systems designed to monitor, optimize, and manage energy generation, storage, distribution, and consumption within industrial facilities or interconnected power networks to improve efficiency and meet regulatory requirements.

Industrial Control Systems
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1since 2023
new
Leak and Seal Integrity Testing

Methods and systems for detecting fluid or gas leaks, or assessing the quality and continuity of seals in containers, systems, or structures. This often involves pressure changes, electrical properties, or acoustic analysis.

Machine Testing
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1since 2023
new
Sludge & Waste Valorization

Methods for treating solid or semi-solid waste (sludge, litter, industrial byproducts) from water treatment processes, often with a focus on reducing volume, detoxifying, or recovering valuable resources like energy (biogas), chemicals, or materials.

Water / Sewage Treatment
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1since 2023
n/a
Carbon Dioxide Capture & Conversion

Technologies and materials for capturing carbon dioxide from gas streams and subsequently converting it into valuable chemical products or materials, rather than simply storing it.

Non-metallic Inorganic Compounds
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1since 2023
n/a
Industrial & Bioprocess Filtration

Membrane and depth filtration for industrial separation, gas purification, and bioprocess clarification including cross-flow, dead-end, tangential flow filtration, and oil/water separation.

Separation Processes (Filtration, Distillation)
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1since 2023
n/a
Vision-Based Object & Pose Estimation

Methods and apparatus for detecting objects and determining their three-dimensional position and orientation (pose) using imagery or point cloud data, often for navigation, surveying, or environmental understanding.

Computer Vision
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1since 2023
n/a

Patents