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

Norbert Kaufmann

BOBOE: 1 patents #7,844 of 12,373Top 65%
Ruppertsberg, DE: #8 of 12 inventorsTop 70%
Overall (All Time): #3,760,724 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5589398 Use of test strips to determine the UV intensity or to pre-determine the duration of stay in the sun without sunburn Manfred Krause, Mathias Neumann 1996-12-31