JJ

John A. Fernstrum, Jr.

📍 Phoenix, AZ: #1,944 of 6,660 inventorsTop 30%
🗺 Arizona: #10,057 of 32,909 inventorsTop 35%
Overall (All Time): #1,649,974 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5390375 Adjustable toilet tank valve to regulate flush water volume 1995-02-21
5175895 Flapper valve mounting adapter Jeffrey R. Fike 1993-01-05
5138725 Travel limiting flapper valve mounting adapter 1992-08-18