Individual holder
SMITH ALVIN J
US·3 granted patents·118 citations·filing 1978–1990
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0179US5039415ADecontamination of hydrocarbon contaminated soilSMITH ALVIN J·Filed 1990·Granted Aug 13, 1991·48 cites·9 claims
- 0279US4363505APipe couplingSMITH ALVIN J·Filed 1981·Granted Dec 14, 1982·40 cites·7 claims
- 0377US4179375AAeration of waste in septic tankSMITH ALVIN J·Filed 1978·Granted Dec 18, 1979·30 cites·4 claims
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