Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
BF

Berthold Ferstl — 2 Patents

Basf Se: 2 patents #5,851 of 13,826Top 45%
Bensheim, DE: #174 of 372 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Berthold Ferstl has been granted 2 US patents while listed as an inventor at Basf Se. The first was granted in 2015 and the most recent in September 2024. Berthold Ferstl ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Berthold Ferstl in Bensheim, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12084628 Composition comprising a primary and a secondary surfactant, for cleaning or rinsing a product I Chen Chou, Andreas Klipp 2024-09-10
9076920 Aqueous alkaline etching and cleaning composition and method for treating the surface of silicon substrates Simon Braun, Achim Fessenbecker 2015-07-07