Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Steven Hofmann — 7 Patents

WRWatts Regulator: 4 patents #17 of 105Top 20%
WIWatts Investment: 1 patents #9 of 20Top 45%
WTWatts Water Technologies: 1 patents #11 of 24Top 50%
Haverhill, MA: #29 of 285 inventorsTop 15%
Massachusetts: #18,077 of 88,656 inventorsTop 25%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Steven Hofmann has been granted 7 US patents while listed as an inventor at Watts Regulator. The first was granted in 1992 and the most recent in December 2020. Steven Hofmann ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Steven Hofmann in Haverhill, MA, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
10858815 Toilet carrier system with a quick connector Matthew Fratantonio 2020-12-08
10823296 Electric mixing valve with dual flowpath metering ball Matthew Fratantonio, Donald K. Morse 2020-11-03
D802098 Faucet inner housing Matthew Fratantonio 2017-11-07
D755931 Electronic tempering faucet Matthew Fratantonio 2016-05-10
D531697 Vacuum breaker 2006-11-07
5566704 Backflow preventer and test cock assembly Rand H. Ackroyd 1996-10-22
5125429 Piston pressure-type vacuum breaker Rand H. Ackroyd 1992-06-30