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Stephen G. Simmering

📍 Ottawa, CA: #2,623 of 6,399 inventorsTop 45%
Overall (All Time): #2,235,834 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6036851 Peat bale filtration element Dennis R. Martin 2000-03-14
5690827 Sewage treatment system using peat and a constructed wetland Dennis R. Martin 1997-11-25