DB

Douglas J. Buch

📍 Greenfield, WI: #44 of 223 inventorsTop 20%
🗺 Wisconsin: #9,054 of 40,088 inventorsTop 25%
Overall (All Time): #972,323 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10640929 Ground water filtration system 2020-05-05
8459896 Permeable paving system 2013-06-11
8366343 Apparatus for fluid storage using paver blocks 2013-02-05
8251607 System and apparatus of fluid storage using paver blocks 2012-08-28
D609369 Paver block 2010-02-02