Hier sind die Erfindungen von Karl Drais aufgelistet, von denen Prototypen oder Publikationen belegt sind. Drais' Wortschöpfungen sind kursiv gekennzeichnet.
| Year | Invention |
|---|---|
| 1810 | approximate solution for numerical equations of n-th degree |
| 1812 | piano recorder recording on a paper band, also the volume |
| 1813 | 4-wheeled Driving Machine One with treadmill between rear wheels. One passenger
treads looking backward (reaction to beginning crop failures in 1812 and high price of oats) |
| 1813 | binary algorithm for calculating square-roots |
| 1814 | 4-wheeled Driving Machine Two with crankshaft between rear wheels. One passenger treads looking forward. |
| 1816 | Conversion Machine for surveyors enabling graphic transformation of areas |
| 1816 | Elevation Perspective, a periscope |
| 1817 | two-wheeler principle of the Running Machine with brass bushings and innovative friction brake
(reaction to starving horses due to crop failure of snow summer 1816 caused by Tambora eruption) |
| 1817 | 2- and 3-wheeled Running Machines with ladies' seat in front. Tandem Running Machine |
| 1821 | Writing Machine, earliest typewriter with a keyboard, 25 keys for embossed or punched letters on a paper tape (reaction to father's loss of sight) |
| 1829 | Fast Writing Machine, earliest stenograph on a punched tape, 16 keys |
| 1831 | coach pulled by two horses each in front and rear to suppress dust |
| 1833 | secret writing |
| 1833 | wood-saving stove with heat-exchanging flue, also smoke-cooling pipe |
| 1834 | coach pushed from the rear by one horse to suppress dust |
| 1834 | Cooking Machine, a wood-saving cooker with pot insulation (earliest haybox) |
| 1843 | railway draisine with treadmill for operation by foot (the earliest one was the two-wheeler on one rail by Viennese Bernard of 1837 - which explains the name) |