RD

Roger C. Davison

TR Tranter: 2 patents #2 of 15Top 15%
TA Thames Water Authority: 1 patents #1 of 10Top 10%
Overall (All Time): #1,646,062 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5487424 Double-wall welded plate heat exchanger — 1996-01-30
5469914 All-welded plate heat exchanger Achint P. Mathur 1995-11-28
4911831 Slow sand filters Michael Bauer 1990-03-27