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

Waterson Chen — 40 Patents

UNUnknown: 12 patents #556 of 83,584Top 1%
WAWaterson: 7 patents #1 of 1Top 100%
Overall (All Time): #78,809 of 4,157,543Top 2%
40 Patents All Time

Issued Patents All Time

Showing 26–40 of 40 patents

Patent #TitleCo-InventorsDate
6371523 Position-recoverable pulling device adapted for use in a fitting that couples two tubular members 2002-04-16
6351976 Door lock assembly 2002-03-05
6339649 Loudspeaker system with stackable loudspeaker units Chin-Lung Lin 2002-01-15
6185966 Lock apparatus 2001-02-13
D433315 Key 2000-11-07
6039294 Support leg for partition walls 2000-03-21
D416786 Support for partition walls 1999-11-23
5934121 Lock apparatus 1999-08-10
5931030 Padlock with replaceable key-operated lock core 1999-08-03
5896761 Padlock 1999-04-27
5722697 Fitting with two tubular members rotatable relative to each other 1998-03-03
D376974 Tube clamp 1996-12-31
D372821 Chair support connector for a rocking chair 1996-08-20
5435604 Tube connecting device 1995-07-25
5295717 Tube connecting device 1994-03-22