Inventor · disambiguated record
Harold M. Zimmerman
Also filed as: ZIMMERMAN HAROLD · ZIMMERMAN HAROLD M
21 granted patents·756 citations·filing 1984–2008
96Inventor score
Top patents by PatentIndex Score
21 records- 0197US4538916AMotor mounting arrangement on a mixing augerZIMMERMAN HAROLD M·Filed 1984·Granted Sep 3, 1985·144 cites·12 claims
- 0296US5286158AMaterial distributing apparatusZIMMERMAN HAROLD M·Filed 1992·Granted Feb 15, 1994·107 cites·19 claims
- 0395US7458746B1Mobile asphalt production machineZIMMERMAN HAROLD M·Filed 2005·Granted Dec 2, 2008·41 cites·20 claims
- 0494US4601629AFine and coarse aggregates conveying apparatusZIMMERMAN HAROLD M·Filed 1984·Granted Jul 22, 1986·76 cites·5 claims
- 0589US7654772B1Mobile asphalt production machineZIMMERMAN HAROLD M·Filed 2008·Granted Feb 2, 2010·22 cites·20 claims
- 0684US5486047AMixing auger for concrete trucksFiled 1995·Granted Jan 23, 1996·71 cites·20 claims
- 0783US6988849B1Pothole repair machineZIMMERMAN HAROLD M·Filed 2004·Granted Jan 24, 2006·31 cites·20 claims
- 0880US4579459AMixing auger mounting and storage arrangementZIMMERMAN HAROLD M·Filed 1984·Granted Apr 1, 1986·33 cites·9 claims
- 0976US7422359B1Method of mixing cement and water for concrete productionZIMMERMAN IND INC·Filed 2007·Granted Sep 9, 2008·6 cites·20 claims
- 1074US7281839B1Turbine cement/water mixer for concrete productionZIMMERMAN IND INC·Filed 2004·Granted Oct 16, 2007·19 cites·34 claims
- 1172US5326797AFire resistant roofing asphalt compositionGS ROOFING PRODUCTS COMPANY IN·Filed 1992·Granted Jul 5, 1994·23 cites·16 claims
- 1270US5551776ATelescoping discharge chute for concrete trucksFiled 1995·Granted Sep 3, 1996·31 cites·20 claims
- 1370US4848012AMulti-purpose earthworking machineZIMMERMAN HAROLD M·Filed 1987·Granted Jul 18, 1989·23 cites·16 claims
- 1469US5100715AFire resistant roofing systemGS ROOFING PRODUCTS COMPANY IN·Filed 1990·Granted Mar 31, 1992·25 cites·13 claims
- 1569US5005980ASludge/soil mixing machineZIMMERMAN HAROLD M·Filed 1990·Granted Apr 9, 1991·32 cites·20 claims
- 1661US4781466AMethod and apparatus for producing concreteZIMMERMAN HAROLD M·Filed 1986·Granted Nov 1, 1988·19 cites·9 claims
- 1760US4783171ALoading conveyor for concrete mixerZIMMERMAN HAROLD M·Filed 1986·Granted Nov 8, 1988·18 cites·19 claims
- 1849US4575010AMethod and apparatus for spreading heated sandZIMMERMAN HAROLD M·Filed 1984·Granted Mar 11, 1986·14 cites·6 claims
- 1948US4848010ABackhoe machineZIMMERMAN HAROLD M·Filed 1987·Granted Jul 18, 1989·11 cites·16 claims
- 2039US5169690AFire resistant roofing systemGS ROOFING PRODUCTS COMPANY IN·Filed 1992·Granted Dec 8, 1992·8 cites·20 claims
- 2130US4848011ALoader bucketZIMMERMAN HAROLD M·Filed 1987·Granted Jul 18, 1989·2 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →