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

Frederic C. Doughty

EMEmhart: 99 patents #2 of 338Top 1%
ALAgio International Company, Limited: 14 patents #2 of 18Top 15%
BJBrown Jordan: 1 patents #10 of 12Top 85%
TCThe Lane Company: 1 patents #11 of 22Top 50%
TCTropitone Furniture Co.: 1 patents #9 of 13Top 70%
South Pasadena, CA: #2 of 313 inventorsTop 1%
California: #1,525 of 386,348 inventorsTop 1%
Overall (All Time): #9,677 of 4,157,543Top 1%
122 Patents All Time

Issued Patents All Time

Showing 1–25 of 122 patents

Patent #TitleCo-InventorsDate
D599573 Chair 2009-09-08
D572915 Furniture 2008-07-15
D544226 Chair 2007-06-12
D542551 Chair 2007-05-15
D542044 Chair 2007-05-08
D541543 Chair 2007-05-01
D540557 Chair 2007-04-17
D540556 Chair 2007-04-17
D540555 Chair 2007-04-17
D540056 Chair 2007-04-10
D540055 Chair 2007-04-10
D540054 Chair 2007-04-10
D540057 Chair 2007-04-10
D539556 Chair 2007-04-03
D539557 Chair 2007-04-03
6779849 Multi-channel sling seat frame Alton A. Harper 2004-08-24
D456879 Faucet handle assembly Darren M. Mark 2002-05-07
D437918 Handle Darren M. Mark 2001-02-20
D429521 Handle hub Darren M. Mark 2000-08-15
D412361 Spout Darren M. Mark, Alvin Tolosa 1999-07-27
D406880 Spout Darren M. Mark 1999-03-16
D405509 Faucet handle Darren M. Mark 1999-02-09
D405508 Faucet handle Darren M. Mark 1999-02-09
D405163 Faucet handle Darren M. Mark 1999-02-02
D405162 Handle hub Darren M. Mark 1999-02-02