PW

Peter Weiergraber

Overall (All Time): #2,308,387 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5145492 Apparatus for the treatment of filter sludge consisting predominantly of diatomite and method of operating same — 1992-09-08
5102538 Apparatus for the treatment of filter sludge consisting predominantly of diatomite and method of operating same — 1992-04-07