According to information from the China National Intellectual Property Administration, ABB Ltd has applied for a patent titled “Gas Chromatography Device, System, and Method with Modular Architecture,” with publication number CN121678857A. The application date is September 2025.

The patent abstract describes a modular gas chromatography system designed for analyzing fluid samples with improved flow management and system integration.

The device includes a fluid inlet configured to receive a fluid containing a sample and deliver it to an inlet of a manifold plate. The manifold plate contains both an inlet channel and a discharge channel. The inlet channel is designed to transport the fluid sample from the fluid inlet to an analysis module, while the discharge channel receives the processed sample from the analysis module and returns it toward the fluid inlet area.

The analysis module is fixed to the manifold plate and integrates a gas chromatography oven and a sensor system. The oven is configured to receive the fluid sample via the inlet channel, perform property measurements on the sample, and then discharge the sample through the discharge channel after analysis. The sensor is designed to measure properties of the fluid sample within the gas chromatography oven after receiving it from the manifold plate.

This modular architecture enables controlled sample routing, efficient measurement, and structured discharge flow, supporting improved performance and flexibility in gas chromatography-based analytical systems.