Company patents

Preh GmbH

Preh GmbH's patent strategy reveals a surprising shift away from its core automotive and computing interfaces, with significant declines across most categories in 2025 and so far in 2026, including an 80.0% drop in Input/Output & User Interfaces (32.7% of portfolio) and a 20.0% decline in Vehicle Powertrain Arrangement (24.5% of portfolio) in 2025. Despite this, the company maintained its patenting in Switches and Pulse / Digital Logic Circuits in 2025 and 2026, suggesting a subtle, sustained focus on semiconductor components.

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.

49 US filings (since 2023) · 12 categories · 14 themes

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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7since 2023
-66.7%YoY
EV Charging Systems & Control

Technologies for efficiently delivering power to electric vehicles, encompassing fast charging, wireless charging, and smart grid integration, alongside vehicle-side control and management of the charging process.

Power Distribution & StorageElectric Vehicle Propulsion
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6since 2023
0.0%YoY
Wearable & Mobile Interactionfiltered

Designing user interfaces and interaction methods specifically for mobile or wearable devices, enabling control of external systems, monitoring user states, or facilitating real-world transactions.

Input/Output & User Interfaces
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6since 2023
-66.7%YoY
Switch Actuation Mechanisms

Mechanical, electromagnetic, or hydraulic systems used to physically operate the contacts of a switch or circuit breaker, focusing on the linkages, motors, coils, or fluid dynamics involved.

Switches
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4since 2023
+100.0%YoY
Advanced Steering Control

Electronic, hydraulic, or steer-by-wire systems that precisely control vehicle direction, often incorporating feedback loops, compensation, and adaptation for various driving conditions or vehicle types.

Vehicle Steering & Bodies
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4since 2023
-50.0%YoY
Multi-material Product Integration & Finishing

Techniques for combining multiple materials or layers, often with specialized surface treatments, coatings, or assembly methods, to create functional or aesthetically enhanced plastic articles, including consumer goods and encapsulated electronics.

Plastics Shaping & Molding
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4since 2023
n/a
Advanced Glazing & Optical Laminates

Layered glass or film structures designed to optimize optical (e.g., light transmission, reflection, diffusion) and/or thermal (e.g., insulation, heat reflection/absorption) performance in windows, displays, and lighting applications.

Layered Products (Laminates, Films)
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2since 2023
new
Electric Powertrain Efficiency & Control

Methods and components for optimizing the performance, efficiency, and control of electric motors, inverters, and power converters within electric vehicle and hybrid vehicle drivetrains.

Electric Vehicle Propulsion
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2since 2023
0.0%YoY
Vehicle Body Structural Design

Innovations in the materials, manufacturing, and assembly of vehicle body components to enhance rigidity, crashworthiness, and functional integration.

Vehicle Steering & Bodies
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2since 2023
n/a
Power Switching & Drivers

Digital logic and control circuits for managing power delivery, driving various loads (e.g., inductive, display elements), converting power, and protecting against over-voltage or electrostatic discharge. Includes gate drivers for power FETs and voltage level shifters.

Pulse / Digital Logic Circuits
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1since 2023
new
Integrated Occupant Protection

Safety features built into or around vehicle seats to protect occupants during various accident scenarios, including airbags, pre-crash positioning, and blast attenuation.

Vehicle Body Fittings
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1since 2023
n/a
Smart Vehicle Access & Entry Aids

Technologies that enable automated or mobile device-controlled access to a vehicle, including keyless entry, remote functions, and power-assisted steps or pedals designed to facilitate easier ingress and egress.

Vehicle Body Fittings
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1since 2023
n/a
Quantum Control Circuits

Specialized digital and mixed-signal circuits for controlling and reading out quantum bits (qubits), including generating precise modulated RF signals and integrating with photonic components for quantum operations.

Pulse / Digital Logic Circuits
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1since 2023
n/a
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)
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1since 2023
n/a

Patents

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US 11941218 B2GRANTED
G06F3/044

Input device with a touchscreen or touchpad and input part with snap haptics located therein

Filed:2020-08-27Pub:2024-03-26
Applicant:PREH GMBH

The invention relates to an input device comprising: a touch-sensitive input surface facing towards an operator (B); a detection device for the spatially resolved detection of an approach towards and touch on the touch-sensitive input surface having a sensor array for capacitive and/or inductive detection, which extends parallel to the input surface; an input part, which is disposed on the input surface and mounted so as to be movable from a rest position (X 0 ) into an actuation position (X E ) along an actuating direction (B 1 ) extending perpendicularly to the input surface, for enabling a performance of an operating input by the operator (B) through a manual displacement of the input part along the actuating direction (B 1 ); a position indicator for contactless position detection, which is attached to the input part and cooperates with the detection device; restoring means for generating a restoring force (F) with snap haptics counteracting the manual shifting from the rest position (X 0 ); wherein the detection device is designed for acquiring a course over time of an approach towards the touch-sensitive input surface by means of a course over time of a sensor signal (Z(t)) of the detection device and to analyze the course over time of the sensor signal (Z(t)) and/or an associated frequency spectrum, and is further designed to assign a switching or controlling function exclusively if it was found in the preceding analysis that the course over time of the sensor signal (Z(t)) and/or the associated frequency spectrum has characteristics that are predefined by the snap haptics.