Company patents

SICK AG

SICK AG's patent strategy reveals a strong, sustained focus on 'Radar / Sonar / Lidar', which accounts for 32.7% of its portfolio, despite a significant decline of 64.0% in patenting activity so far in 2026. Surprisingly, while 'Computer Vision' saw a remarkable 140.0% growth in 2025, several key manufacturing-related categories like 'Measurement (Non-specific)', 'Industrial & Autonomous Control', and 'Length / Distance Measurement' have seen a complete cessation of patenting activity so far in 2026, indicating a potential shift away from these 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.

266 US filings (since 2023) · 12 categories · 27 themes

Sensor-based Environment Perception

Techniques and hardware for autonomous systems to gather and interpret data about their surroundings, including obstacle detection, object recognition, and depth estimation, to inform control decisions.

Computer VisionManipulators & RoboticsIndustrial & Autonomous Control
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52since 2023
-6.2%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.

Data Recognition (Barcodes, OCR)Pictorial / Video Communications
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45since 2023
-25.0%YoY
Remote Tracking and Ranging

Technologies for non-contact measurement of distance, position, or 3D properties of a target object, often involving active emission and detection of light or radio frequency waves, including target tracking.

Length / Distance Measurement
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44since 2023
-40.0%YoY
Robot Health Monitoring & Safety

Methods and systems for monitoring the operational status, detecting anomalies, ensuring safe interaction, and preventing damage or injury in robotic systems.

Manipulators & Robotics
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39since 2023
-7.1%YoY
Physical Item Tracking & Management

Systems and methods for uniquely identifying, tracking, and managing physical items using scannable codes (barcodes, QR codes) or wireless tags (RFID, IoT devices) to link physical objects to digital information, inventory, or services.

Data Recognition (Barcodes, OCR)
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39since 2023
-15.4%YoY
Advanced Radar/Lidar Hardware

Innovations in the physical components and architectures of radar, lidar, and sonar systems, including antenna design, RF signal generation, beam steering mechanisms, and optical elements for improved performance.

Radar / Sonar / Lidar
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17since 2023
-50.0%YoY
Multi-Sensor Imaging & Synthesis

Systems that combine data from multiple camera sensors or capture multiple images from different perspectives or qualities, often involving image processing techniques like synthesis to create enhanced or comprehensive views.

Pictorial / Video Communications
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12since 2023
-20.0%YoY
Under-Display Optical Sensing

Integration of optical sensors, particularly for biometrics or other surface interactions, beneath a display or protective cover, requiring specialized optical paths, illumination, and packaging.

Measurement (Non-specific)
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10since 2023
+300.0%YoY
Precise Positioning & Localization

Methods and systems for accurately determining the absolute or relative position of an object or device, often integrating satellite navigation (GNSS), inertial measurement units (IMU), and local ranging or wireless communication technologies.

Radar / Sonar / Lidar
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10since 2023
-60.0%YoY
Magnetic Position Sensing

Methods and devices that determine the position, angle, or distance of an object by detecting changes in magnetic fields or inductive coupling.

Measurement (Non-specific)Length / Distance Measurement
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9since 2023
0.0%YoY
Optical 3D Surface Metrology

Techniques and systems for measuring three-dimensional shapes, depths, or surface profiles using optical principles, including diffraction, interferometry, structured light, and imaging.

Length / Distance Measurement
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6since 2023
new
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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6since 2023
+50.0%YoY
Multi-modal Sensor Fusion

Techniques for combining data from disparate sensor types (e.g., cameras, radar, mobile device signals) to achieve a more robust and comprehensive understanding of an environment or subject, often leveraging machine learning for interpretation and correlation.

Radar / Sonar / LidarComputer Vision
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6since 2023
-33.3%YoY
Image Quality Control & Calibration

Systems and methods for maintaining and improving the quality of printed images, encompassing adjustments to developing bias based on environmental conditions, paper characteristic detection, and color profile generation.

Data Recognition (Barcodes, OCR)
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4since 2023
+300.0%YoY
Video Enhancement & Object Tracking

Methods and systems for improving the quality of video streams, generating intermediate frames, or continuously locating and following objects within a sequence of images, even under occlusion.

Image Processing
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4since 2023
-33.3%YoY
Autonomous Path Planning

Algorithms and systems for generating, optimizing, and executing trajectories for autonomous vehicles or robots to move through an environment, often involving obstacle avoidance, route validation, and goal reaching.

Manipulators & RoboticsIndustrial & Autonomous Control
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4since 2023
0.0%YoY
Obstacle & Anomaly Detection

Techniques used by sensing systems to identify the presence, location, and characteristics of objects or unusual conditions in an environment, including methods to suppress false positives or 'ghost' detections.

Radar / Sonar / Lidar
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3since 2023
new
Video Quality & Encoding Optimization

Methods and apparatus for improving the visual fidelity, resolution, or compression efficiency of video signals, often through advanced processing, up-scaling, or neural network-based filters.

Computer Vision
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3since 2023
0.0%YoY
Capacitive Sensing & Compensation

Design and implementation of capacitive sensors, including methods for improving accuracy, reducing power consumption, compensating for environmental variations (like temperature), and analyzing complex displacement interactions.

Measurement (Non-specific)
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3since 2023
new
Multi-Agent System Coordination

Methods and systems for managing the interaction, communication, and collaborative tasks among multiple autonomous entities, or between autonomous entities and a central control system or users.

Industrial & Autonomous Control
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3since 2023
-50.0%YoY
Specialized End-Effectors & Mechanisms

Design and control of advanced robotic grippers, tools, and mechanical linkages for specific manipulation tasks or operating in challenging environments.

Manipulators & Robotics
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2since 2023
new
Optical Fiber Sensing Systems

Systems and methods that utilize optical fibers as sensing elements or for transmitting sensing signals, often for distributed monitoring of environmental conditions, phase changes, or integrating sensing with communication.

Measurement (Non-specific)Optical Elements & Systems
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2since 2023
new
Multi-Modal Process Monitoring

Integrated systems that combine multiple types of measurements (e.g., dimensional, thermal, strain, flow) to monitor and control industrial processes, structural integrity, or product quality.

Length / Distance Measurement
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2since 2023
0.0%YoY
Specialized Neural Network Architectures

Development and optimization of novel neural network layers or architectures specifically designed to improve performance or efficiency for computer vision tasks.

Computer Vision
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1since 2023
new
Remote & Wireless Industrial Control

Systems and methods enabling the monitoring, configuration, and operation of industrial equipment and processes from a distance, often utilizing wireless communication protocols and networked platforms for enhanced flexibility and access.

Industrial Control Systems
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1since 2023
new
Advanced Optical Imaging & Lens Design

Development of sophisticated optical lens assemblies and computational methods to achieve high-resolution, precise, or specialized imaging, often for medical or scientific applications.

Optical Elements & Systems
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1since 2023
new
Connected Vehicle Communication (V2X)

Systems enabling wireless communication between vehicles (V2V), vehicles and infrastructure (V2I), or vehicles and other entities (V2X) to share information for traffic management, safety, and navigation.

Wireless Networks
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1since 2023
new

Patents

Showing 41-50 of 412

Page 5 of 42
US 12498256 B2GRANTED
G01D5/22

Inductive proximity sensor for the detection of an object and method of detecting an object

Filed:2024-03-28Pub:2025-12-16
Applicant:SICK AG

An inductive proximity sensor and a method for the detection of an object having at least one coil, wherein at least one transmitted current pulse can be applied to the coil by a control and evaluation unit and the control and evaluation unit is configured to output an object determination signal, wherein the control and evaluation unit is configured to scan at least one induced voltage pulse that has been generated by the transmitted current pulse at the coil in a plurality of sections from or after the time of the application of the transmitted current pulse and to form scan values, whereby the voltage pulse is digitized, wherein the control and evaluation unit is configured to evaluate the scan values for an object detection of a metallic object, wherein the control and evaluation unit is configured to scan the transmitted current pulse that has been generated at the coil in at least two sections from or after the time of the application of the transmitted current pulse and to form transmitted current scan values, wherein the control and evaluation unit is configured to determine a rise in the current increase of the transmitted current pulse from the transmitted current scan values, and the control and evaluation unit is configured to end the transmitted current pulse in dependence on the detected increase of the transmitted current pulse.

145642