Waters has been granted a patent for a pressure transducer design that includes a strain gauge and a filler body to reduce thermal effects. The transducer body and filler body are made of materials with different coefficients of thermal expansion. Systems and methods utilizing this technology are also disclosed. GlobalData’s report on Waters 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 Waters, was a key innovation area identified from patents. Waters's grant share as of February 2024 was 53%. Grant share is based on the ratio of number of grants to total number of patents.

Pressure transducer with filler body to reduce thermal effects

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

A recently granted patent (Publication Number: US11927498B2) discloses a pressure transducer designed to reduce adiabatic thermal effects. The transducer includes a transducer body with a fluidic inlet, a fluidic cavity, and a strain gauge. A filler body within the cavity helps minimize thermal effects on the transducer body. The filler body can be made of the same material as the transducer body or a different material. The patent also covers methods for integrating the filler body and reducing the volume of the fluidic cavity to enhance performance.

Moreover, the patent extends to a liquid chromatography system incorporating the pressure transducer. The system includes a solvent delivery system, a sample delivery system, a liquid chromatography column, and a detector. By utilizing the pressure transducer with the filler body, the system aims to improve accuracy and efficiency in chromatographic processes. The filler body's ability to reduce the cross-sectional area of the fluidic cavity while maintaining optimal flow characteristics is highlighted as a key feature. Additionally, the filler body's composition, whether matching the transducer body or being different, is emphasized as a variable that can impact the system's overall performance.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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 across the world’s largest industries.