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 101–122 of 122 patents

Patent #TitleCo-InventorsDate
D374274 Faucet set Darren M. Mark 1996-10-01
D374275 Faucet set Darren M. Mark 1996-10-01
D373617 Faucet Darren M. Mark 1996-09-10
D373621 Faucet set Darren M. Mark 1996-09-10
D373620 Faucet set Darren M. Mark 1996-09-10
D373619 Faucet set Darren M. Mark 1996-09-10
D373618 Faucet Darren M. Mark 1996-09-10
D373616 Faucet Darren M. Mark 1996-09-10
D372185 Knob Darren M. Mark 1996-07-30
D370525 Faucet body Darren M. Mark 1996-06-04
D370524 Faucet body Darren M. Mark 1996-06-04
D369208 Faucet body Darren M. Mark 1996-04-23
D368302 Faucet Darren M. Mark 1996-03-26
D366517 Faucet Darren M. Mark 1996-01-23
D366307 Showerhead Darren M. Mark 1996-01-16
D366100 Spout Darren M. Mark 1996-01-09
D363975 Faucet Darren M. Mark 1995-11-07
D363974 Faucet Darren M. Mark 1995-11-07
D361827 Faucet body Darren M. Mark 1995-08-29
D360679 Faucet body Darren M. Mark 1995-07-25
D359342 Faucet Darren M. Mark 1995-06-13
D342840 Chair frame 1994-01-04