Helmke Kalkmann — 3 Patents at Amazon

Helmke Kalkmann has been granted 3 US patents while listed as an inventor at Amazon. The first was granted in 2022 and the most recent in September 2023. Helmke Kalkmann ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Helmke Kalkmann in Osnabrück, DE.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
11759805	Active substance supply system for an agricultural sprayer	Timo Klemann, Christoph Kühn, Achim Dembeck, Johannes Feldhaus, Mathias Stiegemeyer +1 more	2023-09-19
11759806	Active substance supply system for an agricultural sprayer	Timo Klemann, Christoph Kühn, Achim Dembeck, Johannes Feldhaus, Mathias Stiegemeyer +1 more	2023-09-19
11504728	Active substance supply system for an agricultural sprayer	Timo Klemann, Christoph Kühn, Achim Dembeck, Johannes Feldhaus, Mathias Stiegemeyer +1 more	2022-11-22

Helmke Kalkmann — 3 Patents

Issued Patents All Time

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