Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Chang Than Chen

Overall (All Time): #301,727 of 4,157,543Top 8%
16 Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
7273084 Shower screen 2007-09-25
6883285 Plastic post assembly for mailbox 2005-04-26
6817141 Shutter assembly for being easily assembled 2004-11-16
6786021 Door panel assembly having flexible hinge members 2004-09-07
6564850 Sliding door assembly having integral door panels 2003-05-20
6330902 Length adjustable foldable door assembly 2001-12-18
6296038 Sliding door panel retaining device 2001-10-02
6182738 Shower screen 2001-02-06
5822810 Shower screen 1998-10-20
5782282 Foldable door for closet 1998-07-21
5690157 Rigid panel folding shower door assembly having improved horizontal track and method for making the same 1997-11-25
D381758 Door panel 1997-07-29
D347348 Textured venetian blind slat 1994-05-31
5301735 Textured folding door and frame assembly 1994-04-12
5102598 Method of making a textured venetian blind 1992-04-07
5099903 Foldable door 1992-03-31