Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ralf Kaestner — 2 Patents

Basf Se: 2 patents #5,851 of 13,826Top 45%
Ludwigshafen, DE: #933 of 1,722 inventorsTop 55%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Ralf Kaestner has been granted 2 US patents while listed as an inventor at Basf Se. The first was granted in 1996 and the most recent in April 2002. Ralf Kaestner ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Ralf Kaestner in Ludwigshafen, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6371999 Polyisobutylaminoalcohols and fuels for internal combustion engines containing these products Juergen Mohr, Knut Oppenlaender, Charalampos Gousetis, Norbert Rieber, Martin Fischer +1 more 2002-04-16 $547,000
5484941 Preparation of 3(5)-methylpyrazoles Stefan Rittinger, Peter Paessler, Norbert Rieber 1996-01-16