The Yuhan has been granted a patent for a heater integrated gas chromatography (GC) column device that allows for precise temperature control, rapid temperature changes, and reduced measuring time. The device features a bobbin with high thermal conductivity and a heat generating layer with carbon nanotubes. GlobalData’s report on Yuhan gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Yuhan, Cancer treatment biomarkers was a key innovation area identified from patents. Yuhan's grant share as of January 2024 was 33%. Grant share is based on the ratio of number of grants to total number of patents.

High-speed, precise temperature control for gas chromatography columns

Source: United States Patent and Trademark Office (USPTO). Credit: Yuhan Corp

A recently granted patent (Publication Number: US11879876B2) discloses a heater integrated gas chromatography (GC) column device designed for efficient separation and analysis of compounds. The device comprises a bobbin made of a metal with high thermal conductivity, an insulating layer with a metal oxide film, a heat generating layer containing carbon nanotubes or a carbon nanotube-metal composite, a metal electrode, and a GC column wound around the bobbin. Additionally, a bonding layer, made of heat-resistant silicone or epoxy resin, is included between the bobbin's outer surface and the GC column to enhance stability.

Furthermore, the patent details various configurations and materials used in the construction of the heater integrated GC column device. These include the selection of metals like copper, magnesium, aluminum, or their alloys for thermal conductivity, anodized metal oxide films for insulation, and specific metals like silver, platinum, or gold in the heat generating layer. The device also allows for the incorporation of temperature sensor devices, such as thermocouples or infrared sensors, on the inner or outer side of the bobbin for precise temperature control during chromatographic analysis. Overall, the patented technology aims to improve the performance and reliability of gas chromatography systems for various analytical applications.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies