Assignee
CHADWICK HELMUTH COMPANY INC
6 granted patents·217 citations·filing 1974–1999
Top patents by PatentIndex Score
6 records- 0188US4053123AMethod and apparatus to determine need for rotor blade pitch adjustment and/or blade substitutionCHADWICK HELMUTH COMPANY INC·Filed 1976·Granted Oct 11, 1977·70 cites·9 claims
- 0280US3944876ARapid starting of gas discharge lampsCHADWICK HELMUTH COMPANY INC·Filed 1974·Granted Mar 16, 1976·34 cites·11 claims
- 0374US4112774AAircraft rotor out-of-track correction method and apparatusCHADWICK HELMUTH COMPANY INC·Filed 1977·Granted Sep 12, 1978·23 cites·25 claims
- 0471US6139271AHelicopter rotor blade weightingCHADWICK HELMUTH COMPANY INC·Filed 1999·Granted Oct 31, 2000·43 cites·15 claims
- 0568US3945256AHelicopter rotor balancing apparatus and methodCHADWICK HELMUTH COMPANY INC·Filed 1975·Granted Mar 23, 1976·24 cites·12 claims
- 0650US4531408AControl of rotor blade stroboscopic displayCHADWICK HELMUTH COMPANY INC·Filed 1982·Granted Jul 30, 1985·23 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →