Eppendorf has been granted a patent for a unique pipette design featuring a gear mechanism that allows for precise and alternating displacement of two parallel rods. The innovative design includes an operating element and driver element for efficient pipetting with pipette tips or syringes. GlobalData’s report on Eppendorf 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 Eppendorf, was a key innovation area identified from patents. Eppendorf's grant share as of April 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.

Pipette with gear mechanism for alternating rod displacement

Source: United States Patent and Trademark Office (USPTO). Credit: Eppendorf SE

A recently granted patent (Publication Number: US11951471B2) discloses a novel pipette design for use with a pipette tip or syringe. The pipette includes a housing with a stem shape, a piston within a cylinder, and a lifting rod with a second retaining apparatus for the piston rod. The design features two parallel rods coupled to the lifting rod, a deflection apparatus to displace the rods in opposing directions, an operating element for axial displacement, and a gear mechanism for sequential rod displacement. The gear mechanism includes a driver element, control cams, guide elements, and an actuator for precise rod movement within the pipette.

Furthermore, the patent details additional features of the pipette, such as teeth on the parallel rods for cooperation with a gearwheel, a rod drive with control cams and guide elements, and a track carrier with control pin guides for vertical and lateral displacement. The gear mechanism is designed as a sub-assembly above the parallel rods, with one rod being a multi-stage toothed rod for enhanced functionality. These innovative features aim to improve the precision and efficiency of pipetting processes, offering a unique solution for laboratory and scientific applications requiring accurate liquid handling.

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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.