Individual holder
STEFFENS CHARLES J
US·3 granted patents·43 citations·filing 1975–2012
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0188US8205928B2Folding cargo bay cover for pickup truckSTEFFENS CHARLES J·Filed 2010·Granted Jun 26, 2012·15 cites·10 claims
- 0280US9669689B2Folding cargo bay cover for pickup truckSTEFFENS CHARLES J·Filed 2012·Granted Jun 6, 2017·6 cites·3 claims
- 0372US4032133ARoller positioning method and apparatus for buckle-type paper folding machineSTEFFENS CHARLES J·Filed 1975·Granted Jun 28, 1977·22 cites·2 claims
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