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

Jens Radbruch — 4 Patents

UNUnknown: 6 patents #2,010 of 83,584Top 3%
DDDoduco Kg. Dr. Eugen Durrwachter: 2 patents #3 of 14Top 25%
Pforzheim, DE: #76 of 436 inventorsTop 20%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Jens Radbruch has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1987 and the most recent in September 1999. Jens Radbruch ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Jens Radbruch in Pforzheim, DE.

Patents per Year

Patents granted per year, 1987 to 1999Bar chart with a peak of 1 patents in 1987.peak 11987: 1 patents19871988: 1 patents19881994: 1 patents19941999: 1 patents1999

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5949322 Switch protecting against increased temperatures Udo Witteck 1999-09-07
5309131 Thermal switch Peter Hofsass, by Henrik Peter Hofsass, legal representative, by Carola Rika Hofsass, legal representative, by Benjamin Michael Hofsass, legal representative, Guenter Kruck 1994-05-03
4778958 Material for electric contacts having arc-quenching properties Ursula Mayer, Roland Michal 1988-10-18
4644118 Electric power circuit breaker Bruno Gengenbach, Roland Michal 1987-02-17