Individual holder
PIEPHO RALF F
DE·3 granted patents·15 citations·filing 1978–1991
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0134US4308139AApparatus for the purification of oily emulsions, solutions, and industrial waste watersPIEPHO RALF F·Filed 1980·Granted Dec 29, 1981·6 cites·13 claims
- 0233US4234424AApparatus for the purification of oily emulsions, solutions, and industrial waste watersPIEPHO RALF F·Filed 1978·Granted Nov 18, 1980·5 cites·2 claims
- 0329US5149423AApparatus for the purification of waste water with swivelling mixing containerPIEPHO RALF F·Filed 1991·Granted Sep 22, 1992·4 cites·7 claims
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