Individual holder
KAEMPEN CHARLES R
US·2 granted patents·35 citations·filing 1994–1996
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
2 records- 0162US5590803AComposite double-wall underground tank structure and method for making sameKAEMPEN CHARLES R·Filed 1994·Granted Jan 7, 1997·28 cites·30 claims
- 0234US5742992AMethod for making composite double-wall underground tank structureKAEMPEN CHARLES R·Filed 1996·Granted Apr 28, 1998·7 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →