1988 – Inventor and designer Vaclav Knob starts working on the Birotary Engine idea development
2010 – Company KNOB ENGINES s.r.o. established.
2014 – VC investor Jiri Drahovzal acquired minority share of the company providing critical funds for prototypes assembly and testing
2014 – Two Czech patents received for the Birotary Engine and its Sealing System
2015 – First Birotary Engine prototype manufactured, then tested at the CVUT Centre of Vehicles for Sustainable Mobility
2016 – Two U.S. patents received for the Birotary Engine and its Sealing System
2017 – Patents received in Canada, EU, Australia, South Africa, Japan, China and Eurasia, with patents pending in several other economically most important countries of the world.
2017 – Birotary Engine launch and first presentation for industry experts and invited guests – representatives of the Czech Technical University, Czech Academy of Science, Czech Space Office, airplane and propeller manufacturers, car makers, aerospace governing institutions and selected media representatives
2018 – Managing Director Jiri Drahovzal acquired majority share of the company
Managing Director Jiri Drahovzal presenting to distinguished guests