Multichannel Pipette Literature Review

Hans Jirgen Bigus Uhl, “MULTI-CHANNEL PIPETTE DEVICE” Patent Application Publication

each pipette channel has at least one associated, separate micro membrane pump for dosed Suction and/or discharge of fluids
informative for the basic structure
tells us about the internal working

Kenneth Rainin, Walter S. Watson "LIQUID-END ASSEMBLY FOR MULTICHANNEL AIR-DISPLACEMENT PIPETTE" United States Patent

Give a detailed insight into the working of a multichannel pipette containing a single cylinder for each individual channel.
Discusses the advantages of being able to replace a single cylinder at a time, depending on the requirement.
Elaborates on the mechanism used to eject spent tips without touching them.

Khastsaev, B.D. Single channel and multichannel adjustable micropipettes. Biomed Eng 27, 285–291 (1993).

Gives a detailed description of the classification of pipettes depending upon their types, volumes, number of channels, and on other parameters.
Details both domestic and foreign pipette manufacturers while also stating some advantages and disadvantages of some of their products.

Kenneth O'Connell and Nicholas Vitale "LIQUID END ASSEMBLY FOR A HANDHELD MULTICHANNEL PIPETTE WITH ADJUSTABLE NOZZLE SPACING" United States Patent

Design for 8 nozzle pipette with the varying distance between adjacent tips is achieved using the inline alignment technique which is controlled by using the knob like fasteners
working mechanism is explained here with the minute part details

Martin Klingenberg, “When a common problem meets an ingenious mind” The invention of the modern micropipette"EMBO Reports"