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

Paul S. Wingerstahn

PLPlaycore: 5 patents #6 of 11Top 55%
PWPlaycore Wisconsin: 1 patents #30 of 54Top 60%
Fort Payne, AL: #12 of 69 inventorsTop 20%
Alabama: #1,266 of 10,951 inventorsTop 15%
Overall (All Time): #861,113 of 4,157,543Top 25%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8529362 Elevated hand-held merry-go-round 2013-09-10
7874926 Elevated hand-held merry-go-round 2011-01-25
7578745 Elevated hand-held merry-go-round 2009-08-25
D568434 Large hanging and spinning playground device 2008-05-06
D559935 Small hanging and spinning playground device 2008-01-15
D559936 Tilted hanging and spinning playground device 2008-01-15