Inventor · disambiguated record
James D. Heckelman
Also filed as: HECKELMAN JAMES D · ZIEMKE ROBERT A
10 granted patents·1 pending application·197 citations·filing 1974–2017
89Inventor score
Top patents by PatentIndex Score
11 records- 0184US4455941ADetonating cord and continuity verification systemWALKER RICHARD E·Filed 1983·Granted Jun 26, 1984·36 cites·9 claims
- 0281US4403143ADetonating cord and continuity verification systemRES ENERGY OF OHIO INC·Filed 1981·Granted Sep 6, 1983·36 cites·7 claims
- 0376US6307920B1Microprocessor controlled dispatcher activated response identification system with telephone and radio frequency interfaceFORESIGHT TECHNOLOGIES INC·Filed 1998·Granted Oct 23, 2001·92 cites·20 claims
- 0465US10006281B2Calibration of molded piezoelectric longitudinal charge coefficient of a pressure sensor for blasting operationAUSTIN POWDER CO·Filed 2015·Granted Jun 26, 2018·1 cites·5 claims
- 0552US4152703AHoming deviceDAN MAR·Filed 1976·Granted May 1, 1979·14 cites·21 claims
- 0644US10359264B2Electronic detonator, electronic ignition module (EIM) and firing circuit for enhanced blasting safetyAUSTIN STAR DETONATOR CO·Filed 2017·Granted Jul 23, 2019·0 cites·18 claims
- 0739US4188621AAlarm systemDAN MAR CO INC·Filed 1978·Granted Feb 12, 1980·8 cites·16 claims
- 0834US3959670ABlasting machineOHIO RES ENERGY INC·Filed 1974·Granted May 25, 1976·5 cites·18 claims
- 0933US2013205888A1Method and apparatus to measure borehole pressure during blastingTEOWEE GIMTONG·Filed 2013·Application pending·0 cites
- 1029US4318005ADigital anti-theft locking circuitHECKELMAN JAMES D·Filed 1979·Granted Mar 2, 1982·3 cites·11 claims
- 1127US3999076ABlasting machineOHIO RES ENERGY INC·Filed 1975·Granted Dec 21, 1976·2 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →