Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Willy Ytter — 6 Patents

EXExtraversion: 5 patents #1 of 1Top 100%
Stockholm, SE: #482 of 3,607 inventorsTop 15%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Willy Ytter has been granted 6 US patents while listed as an inventor at Extraversion. The first was granted in 1981 and the most recent in October 1990. Willy Ytter ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Willy Ytter in Stockholm, SE.

Patents per Year

Patents granted per year, 1981 to 1990Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19811983: 1 patents19831984: 1 patents19841986: 1 patents19861987: 1 patents19871990: 1 patents1990

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
D311426 Frame element for mounting of sales promotion and advertising equipment 1990-10-16
4678246 Display device 1987-07-07
4601524 Display device 1986-07-22
4436135 Portable display system 1984-03-13
D271732 Foldable display panel 1983-12-13
RE30777 Portable display system 1981-10-20