ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,513, issued on Sept. 30, was assigned to Eppendorf SE (Hamburg, Germany).
"Air cushion pipette" was invented by Andreas Ratzka (Hamburg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An air cushion pipette comprises at least one seat configured to releasably hold a pipette tip and a displacement apparatus comprising a displacement chamber including a displacement element configured to be displaced therein. A drive apparatus is coupled to the displacement element and configured to displace the displacement element in the displacement chamber. An overstroke apparatus comprises a lower stop and is configured such that a stop element displaces...