Individual holder
SIEPMANN FRIEDRICH W
DE·2 granted patents·35 citations·filing 1987–1989
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
2 records- 0162US5324666AProcess for determining oxidizable substances contained in an aqueous sample liquidSIEPMANN FRIEDRICH W·Filed 1989·Granted Jun 28, 1994·26 cites·12 claims
- 0237US4898829AApparatus for the detection of biodegradable and toxic substances in aqueous solutionsSIEPMANN FRIEDRICH W·Filed 1987·Granted Feb 6, 1990·9 cites·42 claims
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