# Roger Perrinjaquet

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**Roger Perrinjaquet** (c. 1935 – 9 March 2000) was a Swiss inventor. He is considered the inventor of the electric [immersion blender](/source/Immersion_blender) (stick blender).

## Invention of the immersion blender

In 1950, Perrinjaquet applied for a patent for a "portable kitchen appliance". The new mixer was named *[Bamix](/source/Bamix)*, an abbreviation of the French "battre et mixer" (to beat and mix). In 1954, Perrinjaquet sold his patents to ESGE KG, a company founded a year earlier by Messrs. Spingler and Gschwend. From the end of 1954, this company produced the first hand blenders in its factory in [Germany](/source/Germany). According to ESGE AG, Perrinjaquet described the world's first portable hand blender with his 1950 patent.[1]

## Patents

1. Patent CH288357A: *Appareil ménager portatif.* Angemeldet am 6. März 1950, veröffentlicht am 31. Januar 1953, Erfinder: Roger Perrinjaquet.‌
1. Patent US2874014A: *Drop-head machine.* Angemeldet am 2. January 1957, veröffentlicht am 17. Februar 1959, Anmelder: Necchi Sewing Machine Sales Co, Erfinder: Roger Perrinjaquet.‌
1. Patentanmeldung DE1815020A1: *Führungsschienenanordnung für Rennspielzeuge.* Angemeldet am 17. Dezember 1968, veröffentlicht am 24. Juli 1969, Anmelder: Mattel Inc, Erfinder: Roger Paul Perrinjaquet.

## See also

- [List of Swiss inventors and discoverers](/source/List_of_Swiss_inventors_and_discoverers)

## References

1. ["Blending globally: the big success of a small Swiss product"](https://www.swissinfo.ch/eng/swiss-made/blending-globally-the-big-success-of-a-small-swiss-product/82592680). *SWI swissinfo.ch*. 2024-07-05. Retrieved 2026-03-19.

## External links

- [Unternehmensgeschichte der Firma Bamix](http://www.bamix.com/firmengeschichte.html)
- [Les inventeurs suisses: Roger Perrinjaquet et son batteur mixeur](http://www.rts.ch/video/emissions/abe/4170800-les-inventeurs-suisses-roger-perrinjaquet-et-son-batteur-mixeur.html), TV-Sendung des Senders [RTS](/source/Radio_T%C3%A9l%C3%A9vision_Suisse) zur Erfindung des Stabmixers (in Französisch)
- [*70 Jahre Bamix - Wie ein Thurgauer Stabmixer die Welt eroberte*.](https://www.srf.ch/news/wirtschaft/70-jahre-bamix-wie-ein-thurgauer-stabmixer-die-welt-eroberte) In: *srf.ch* vom 29. Juni 2024.

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Adapted from the Wikipedia article [Roger Perrinjaquet](https://en.wikipedia.org/wiki/Roger_Perrinjaquet) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Roger_Perrinjaquet?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.