Company patents

Air Distribution Technologies IP, LLC

Air Distribution Technologies IP, LLC's patent strategy is surprisingly narrow, with 93.3% of its portfolio focused on HVAC & Air Conditioning, a category that has seen a significant decline in patenting activity, dropping by 57.1% in 2025 and 41.7% so far in 2026. This suggests a shifting priority away from its core area, despite minor, inconsistent activity in other categories like Pumps (Centrifugal) and Doors & Windows.

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.

89 US filings (since 2023) · 6 categories · 12 themes

HVAC Component Design & Diagnostics

Engineering and diagnostic aspects of individual heating, ventilation, and air conditioning components, such as PTC heaters, air ducts, flow control valves, and compressor monitoring.

HVAC & Air ConditioningVehicle Heating / Cooling
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63since 2023
-45.5%YoY
Smart HVAC Control Systems

Systems and methods for intelligent control of HVAC equipment, often incorporating sensors, communication networks, and adaptive algorithms to optimize comfort, energy efficiency, and operational parameters.

HVAC & Air Conditioning
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57since 2023
-50.0%YoY
Specialized Fluid Handling Applications

Pumps and blowers specifically adapted or designed for unique fluid types, challenging environments, or particular industrial, medical, or consumer applications, often involving debris, specific gas mixtures, or precise delivery requirements.

Pumps (Centrifugal)
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14since 2023
-80.0%YoY
AI & Data Analytics for HVAC

Application of artificial intelligence, machine learning, and data analysis techniques for tasks such as fault detection, predictive maintenance, learning-based control, and intelligent environmental monitoring in HVAC systems.

HVAC & Air Conditioning
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12since 2023
n/a
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.

HVAC & Air Conditioning
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10since 2023
-33.3%YoY
Air Quality & Dehumidification

Technologies focused on improving indoor air quality by removing pollutants, microorganisms, or excess humidity, often employing specialized materials, filtration, or air circulation strategies.

HVAC & Air Conditioning
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4since 2023
0.0%YoY
Pump & Fan Operational Control & Diagnostics

Systems and methods for monitoring, regulating, and diagnosing the performance and health of pumps and fans, including speed control, flow rate management, abnormality detection, and safety mechanisms like overspeed safeguards.

Pumps (Centrifugal)
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3since 2023
+100.0%YoY
Integrated Solar Energy Harvesting

Systems that embed photovoltaic cells or films directly into window components like louvers, blinds, or glazing, to generate electricity, often combined with automated shading for energy management.

Doors & Windows
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3since 2023
new
Advanced Impeller & Flow Path Designfiltered

Focuses on optimizing the geometry, structure, and internal flow channels of impellers, blades, and housings to improve fluid dynamics, efficiency, or specific performance characteristics of centrifugal pumps and fans.

Pumps (Centrifugal)
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3since 2023
n/a
Automated Shading & Access Systems

Mechanisms and control systems for automating the movement, opening, or closing of blinds, shades, louvers, or doors, enhancing user convenience, security, or energy efficiency.

Doors & Windows
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2since 2023
new
Advanced Frame & Panel Construction

Innovative designs, materials, and manufacturing methods for improving the structural integrity, insulation, ease of assembly, or specific functional properties of door and window frames and panels.

Doors & Windows
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1since 2023
new
Smart Cabin Climate Control

Advanced systems for maintaining passenger comfort and air quality within the vehicle cabin, including features like condensation prevention, remote control, after-blow functions, and air purification.

Vehicle Heating / Cooling
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1since 2023
n/a

Patents

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US 11592029 B2GRANTED
F04D29/28

Impeller for centrifugal fan and centrifugal fan

Filed:2022-02-17Pub:2023-02-28
Applicant:Air Distribution Technologies IP, LLC

The present application discloses an impeller for a centrifugal fan and a centrifugal fan. The impeller comprises a support member and several vanes. The support member has an inner wall that defines a hollow portion. The several vanes are arranged inside the hollow portion, each of the several vanes is connected with the inner wall and extends along the axial direction of the support member, and the several vanes are arranged along the circumferential direction of the support member. Each of the several vanes is bent and comprises a front edge, a tail edge, a convex suction surface, and a concave pressure surface, the suction surface and the pressure surface are arranged to oppose each other, and the front edge and the tail edge are arranged to oppose each other, wherein the tail edge is connected with the inner wall of the support member, and wherein several protrusions are provided on the suction surface, and the several protrusions are arranged to be close to the front edge. The protrusions can regulate the flow of a fluid immediately when the fluid contacts the vanes. During the flow regulation process, a large vortex in the fluid can be divided into several small vortices. Such small vortices have smaller friction resistance, and the kinetic energy dissipated from the motion of the small vortices themselves can be partially cancelled out, thereby reducing the noise of the impeller and improving the performance of the centrifugal fan.