Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DF

David Feist

ASAventis Cropscience S.A.: 1 patents #24 of 99Top 25%
BCBayer Cropscience: 1 patents #635 of 1,202Top 55%
Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,150,457 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7432226 Herbicidally active composition Frank Ziemer, Gerhard Schnabel, Detlev Haase, Roland Deckwer, Christopher Hugh Rosinger 2008-10-07
6289829 Planting apparatus with improved liquid pesticide delivery device and related method for delivering liquid pesticide James Daniel Fish, Timothy J. Bender, Grant E. Splear 2001-09-18