Assignee
KIRCHNER FRAENK ROHR
US·11 granted patents·3 pending applications·219 citations·filing 1984–2005
Top patents by PatentIndex Score
14 records- 0180US6485286B1Exchangeable corrugatorKIRCHNER FRAENK ROHR·Filed 2000·Granted Nov 26, 2002·23 cites·27 claims
- 0280US5277459APipe connector, pipe coupler and associated nutKIRCHNER FRAENK ROHR·Filed 1991·Granted Jan 11, 1994·58 cites·23 claims
- 0370US6698456B2Protective corrugated plastic pipeKIRCHNER FRAENK ROHR·Filed 2002·Granted Mar 2, 2004·20 cites·14 claims
- 0469US6129120APipe-arrangementKIRCHNER FRAENK ROHR·Filed 1999·Granted Oct 10, 2000·40 cites·20 claims
- 0568US7455327B2Coupling deviceKIRCHNER FRAENK ROHR·Filed 2005·Granted Nov 25, 2008·7 cites·15 claims
- 0665US6860518B2Corrugated plastic pipe with fastening portionKIRCHNER FRAENK ROHR·Filed 2002·Granted Mar 1, 2005·20 cites·24 claims
- 0758US6793475B2Coextrusion nozzle arrangementKIRCHNER FRAENK ROHR·Filed 2001·Granted Sep 21, 2004·5 cites·7 claims
- 0846US6164338ACorrugated pipe with footKIRCHNER FRAENK ROHR·Filed 1999·Granted Dec 26, 2000·19 cites·10 claims
- 0942US7069953B2Plastic corrugation corrugated pipe with monolithic containerKIRCHNER FRAENK ROHR·Filed 2002·Granted Jul 4, 2006·4 cites·21 claims
- 1042US4674969AApparatus for making plastic tubesKIRCHNER FRAENK ROHR·Filed 1984·Granted Jun 23, 1987·17 cites·6 claims
- 1142US2004060204A1Motor vehicle jet water conduit connecting arrangementKIRCHNER FRAENK ROHR·Filed 2003·Application pending·0 cites
- 1240US2005170119A1Multi-layer plastic conduit comprising a PVC layerKIRCHNER FRAENK ROHR·Filed 2004·Application pending·0 cites
- 1331US2003034651A1Corrugated plastic pipe arrangementKIRCHNER FRAENK ROHR·Filed 2002·Application pending·0 cites
- 1423US5164204AModular corrugatorKIRCHNER FRAENK ROHR·Filed 1990·Granted Nov 17, 1992·6 cites·12 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →