Inventor · disambiguated record
Charles J. Steffens
Also filed as: STEFFENS CHARLES · STEFFENS CHARLES J
19 granted patents·1 pending application·561 citations·filing 1975–2012
96Inventor score
Files withSTEFFENS ENTPR INC13STEFFENS CHARLES J3ERICKSON ROGER L1RIETH JAMES E1RIVIERA MARINE & TACKLE CO1
Top patents by PatentIndex Score
20 records- 0198US6527330B1Folding cargo bay cover for pickup truckSTEFFENS ENTPR INC·Filed 2002·Granted Mar 4, 2003·69 cites·10 claims
- 0298US6422635B1Folding cargo bay cover for pickup truckSTEFFENS ENTPR INC·Filed 2000·Granted Jul 23, 2002·74 cites·34 claims
- 0397US6565141B1Folding cargo bay cover for pickup truckSTEFFENS ENTPR INC·Filed 2002·Granted May 20, 2003·58 cites·12 claims
- 0495US6520559B1Folding cargo bay cover for pickup truckSTEFFENS ENTPR INC·Filed 2002·Granted Feb 18, 2003·37 cites·11 claims
- 0595US4946217APickup box coversSTEFFENS ENTERPRISES INC·Filed 1989·Granted Aug 7, 1990·77 cites·9 claims
- 0694US7334807B2Vehicle step tubeSTEFFENS ENTPR INC·Filed 2004·Granted Feb 26, 2008·29 cites·16 claims
- 0794US6454337B2Folding cargo bay cover for pickup truckSTEFFENS ENTPR INC·Filed 2001·Granted Sep 24, 2002·33 cites·9 claims
- 0889US7735881B2Folding cargo bay cover for pickup truckSTEFFENS ENTPR INC·Filed 2007·Granted Jun 15, 2010·23 cites·3 claims
- 0988US8205928B2Folding cargo bay cover for pickup truckSTEFFENS CHARLES J·Filed 2010·Granted Jun 26, 2012·15 cites·10 claims
- 1083USD612561SComputer cartSTEFFENS ENTPR INC·Filed 2009·Granted Mar 23, 2010·27 cites·1 claims
- 1180US9669689B2Folding cargo bay cover for pickup truckSTEFFENS CHARLES J·Filed 2012·Granted Jun 6, 2017·6 cites·3 claims
- 1274US7195299B2Cargo compartment organizerSTEFFENS ENTPR INC·Filed 2006·Granted Mar 27, 2007·9 cites·19 claims
- 1372US4032133ARoller positioning method and apparatus for buckle-type paper folding machineSTEFFENS CHARLES J·Filed 1975·Granted Jun 28, 1977·22 cites·2 claims
- 1467US8205844B1Connector assemblyERICKSON ROGER L·Filed 2011·Granted Jun 26, 2012·8 cites·17 claims
- 1566US4411395ADownrigger swivel baseRIVIERA MARINE & TACKLE CO·Filed 1981·Granted Oct 25, 1983·22 cites·14 claims
- 1665US7036861B2Cargo compartment organizerSTEFFENS ENTPR INC·Filed 2003·Granted May 2, 2006·14 cites·9 claims
- 1764USD637782SComputer cartSTEFFENS ENTPR INC·Filed 2010·Granted May 10, 2011·13 cites·1 claims
- 1863US4104917ATrolling wireRIETH JAMES E·Filed 1977·Granted Aug 8, 1978·16 cites·15 claims
- 1953USD645630SComputer cartSTEFFENS ENTPR INC·Filed 2011·Granted Sep 20, 2011·9 cites·1 claims
- 2047US2008018074A1Two-Piece Vehicle Step TubeSTEFFENS ENTPR INC·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →