Assignee
HAWKEYE CONCRETE PROD CO
US·22 granted patents·4 pending applications·214 citations·filing 1982–2016
Top patents by PatentIndex Score
26 records- 0193US8926311B1Vibration system for concrete pipe making machinesHAWKEYE CONCRETE PROD CO·Filed 2013·Granted Jan 6, 2015·16 cites·14 claims
- 0281US9745752B2Concrete products locking cage spacerHAWKEYE CONCRETE PROD CO·Filed 2015·Granted Aug 29, 2017·8 cites·3 claims
- 0376US7832703B2Apparatus and method for protecting lined concrete pipe during the manufacturing processHAWKEYE CONCRETE PROD CO·Filed 2009·Granted Nov 16, 2010·3 cites·8 claims
- 0476US4999965ASpacer for double cage reinforcement wire mesh for concrete productsHAWKEYE CONCRETE PROD CO·Filed 1990·Granted Mar 19, 1991·56 cites·3 claims
- 0570US4989388ASpacer for spacing reinforcing mesh wire from the form in the manufacture of concrete pipe and the likeHAWKEYE CONCRETE PROD CO·Filed 1989·Granted Feb 5, 1991·36 cites·1 claims
- 0670US4708621AConcrete pipe making machineHAWKEYE CONCRETE PROD CO·Filed 1985·Granted Nov 24, 1987·27 cites·7 claims
- 0763US10563794B2Reinforced concrete pipeHAWKEYE CONCRETE PROD CO·Filed 2015·Granted Feb 18, 2020·1 cites·4 claims
- 0863US7083406B2Vibration system for concrete pipe making machinesHAWKEYE CONCRETE PROD CO·Filed 2003·Granted Aug 1, 2006·4 cites·4 claims
- 0960US9469053B2Composite pallet for concrete pipeHAWKEYE CONCRETE PROD CO·Filed 2014·Granted Oct 18, 2016·0 cites·3 claims
- 1060US6817589B2Apparatus and method for removing joint rings from cured concrete productsHAWKEYE CONCRETE PROD CO·Filed 2002·Granted Nov 16, 2004·3 cites·3 claims
- 1157US5792484AAutomated feed system for pipe making machineHAWKEYE CONCRETE PROD CO·Filed 1997·Granted Aug 11, 1998·14 cites·7 claims
- 1256US8979520B2Concrete roller headHAWKEYE CONCRETE PROD CO·Filed 2013·Granted Mar 17, 2015·0 cites·17 claims
- 1354US2017001334A1Composite pallet for concrete pipeHAWKEYE CONCRETE PROD CO·Filed 2016·Application pending·0 cites
- 1450US9139333B2Composite pallets for molding concrete pipeHAWKEYE CONCRETE PROD CO·Filed 2013·Granted Sep 22, 2015·0 cites·19 claims
- 1549US9574349B2Post-tensioning concrete pipe wrapHAWKEYE CONCRETE PROD CO·Filed 2014·Granted Feb 21, 2017·0 cites·13 claims
- 1649US5234331AAutomated pipe making machineHAWKEYE CONCRETE PROD CO·Filed 1991·Granted Aug 10, 1993·11 cites·8 claims
- 1748US4578235AMethod for lining pipeHAWKEYE CONCRETE PROD CO·Filed 1983·Granted Mar 25, 1986·10 cites·3 claims
- 1847US2014308474A1Concrete product cage spacerHAWKEYE CONCRETE PROD CO·Filed 2014·Application pending·0 cites
- 1945US9605777B2Liner for concrete articleHAWKEYE CONCRETE PROD CO·Filed 2015·Granted Mar 28, 2017·0 cites·15 claims
- 2042US5720993ACollapsible core for concrete pipe making apparatusHAWKEYE CONCRETE PROD CO·Filed 1996·Granted Feb 24, 1998·7 cites·11 claims
- 2141US9428204B2Method for handling spacers used in producing concrete pipeHAWKEYE CONCRETE PROD CO·Filed 2012·Granted Aug 30, 2016·2 cites·4 claims
- 2239US2016236374A1Packerhead machineHAWKEYE CONCRETE PROD CO·Filed 2016·Application pending·0 cites
- 2337US5679279ACollapsible core seam cover for concrete making apparatusHAWKEYE CONCRETE PROD CO·Filed 1996·Granted Oct 21, 1997·5 cites·9 claims
- 2437US5587185AAutomated system for handling and cleaning concrete pipe-making componentsHAWKEYE CONCRETE PROD CO·Filed 1994·Granted Dec 24, 1996·8 cites·6 claims
- 2534US4412817ACanopy kiln systemHAWKEYE CONCRETE PROD CO·Filed 1982·Granted Nov 1, 1983·3 cites·8 claims
- 2627US2011057403A1Tangle free spacer cartHAWKEYE CONCRETE PROD CO·Filed 2010·Application pending·0 cites
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