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

Stephan Leitner — 4 Patents

U.S. Philips: 4 patents #1,253 of 8,851Top 15%
Althofen, AT: #4 of 15 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Stephan Leitner has been granted 4 US patents while listed as an inventor at U.S. Philips. The first was granted in 1996 and the most recent in May 1999. Stephan Leitner ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Stephan Leitner in Althofen, AT.

Patents per Year

Patents granted per year, 1996 to 1999Bar chart with a peak of 1 patents in 1996.peak 11996: 1 patents19961997: 1 patents19971998: 1 patents19981999: 1 patents1999

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5898999 Hair cutting apparatus with comb device Jaleleddine Chaouachi, Jurgen Holzbauer, Siegfried Seufzer 1999-05-04
5819415 Hair-cutting apparatus having a toothed cutting device, and toothed cutting device for such an apparatus Jan Willem Bruggers 1998-10-13
5600890 Hair-cutting apparatus having a toothed cutting device and method of manufacturing a cutter for a toothed cutting device of such apparatus Josef Ribitsch 1997-02-11
5560104 Shaver with reciprocating drive Jan Willem Bruggers 1996-10-01