Inventor · disambiguated record

Edward C. Duwel

Also filed as: DUWEL EDWARD C

20 granted patents·508 citations·filing 1979–1985

96Inventor score

Technology areasG07B G07C

Files withPITNEY BOWES INC20

Top patents by PatentIndex Score

20 records

0197US4447890ARemote postage meter systems having variable user authorization codePITNEY BOWES INC·Filed 1983·Granted May 8, 1984·189 cites·14 claims
0289US4280180AElectronic postage meter having field resettable control valuesPITNEY BOWES INC·Filed 1979·Granted Jul 21, 1981·40 cites·15 claims
0381US4347506AElectronic postage meter having check date warning with control for overriding the check date warningPITNEY BOWES INC·Filed 1981·Granted Aug 31, 1982·32 cites·12 claims
0480US4528644ACustomizing the firmware after assembly of an electronic postage meterPITNEY BOWES INC·Filed 1983·Granted Jul 9, 1985·31 cites·41 claims
0578US4442501AElectronic postage meter with weak memory indicationPITNEY BOWES INC·Filed 1981·Granted Apr 10, 1984·28 cites·14 claims
0678US4424573ASystem for entering a postage meter serial number into a nonvolatile memory from an external channel after assembly of the meterPITNEY BOWES INC·Filed 1981·Granted Jan 3, 1984·29 cites·15 claims
0776US4535421AUniversal real time transparent asynchronous serial/echoplex converterPITNEY BOWES INC·Filed 1983·Granted Aug 13, 1985·27 cites·10 claims
0871US4283721AElectronic postage meter having check date warningPITNEY BOWES INC·Filed 1979·Granted Aug 11, 1981·17 cites·6 claims
0967US4506329ANon-volatile memory serial number lock for electronic postage meterPITNEY BOWES INC·Filed 1982·Granted Mar 19, 1985·19 cites·13 claims
1065US4519048APostage meter system for communicating platen movement to a microprocessor to signal completion of printingPITNEY BOWES INC·Filed 1982·Granted May 21, 1985·18 cites·6 claims
1154US4739486AModifying a firmware variable in an electronic postage meterPITNEY BOWES INC·Filed 1985·Granted Apr 19, 1988·13 cites·12 claims
1252US4636975AControlling firmware branch points in an electronic postage meterPITNEY BOWES INC·Filed 1982·Granted Jan 13, 1987·10 cites·9 claims
1348US4509141APostage meter with keyboard keys used for changing operating constantsPITNEY BOWES INC·Filed 1982·Granted Apr 2, 1985·9 cites·20 claims
1446US4266222AElectronic postage meter having reset base warningPITNEY BOWES INC·Filed 1979·Granted May 5, 1981·6 cites·7 claims
1545US4549281AElectronic postage meter having keyboard entered combination for rechargingPITNEY BOWES INC·Filed 1985·Granted Oct 22, 1985·22 cites·12 claims
1642US4535407APostage meter with keyboard keys for changing postage unused amountPITNEY BOWES INC·Filed 1982·Granted Aug 13, 1985·6 cites·21 claims
1739US4623987APostage meter with keyboard keys for commanding and requesting performance of meter operationsPITNEY BOWES INC·Filed 1982·Granted Nov 18, 1986·5 cites·100 claims
1838US4628476ACompleting an incomplete trip in an electronic postage meterPITNEY BOWES INC·Filed 1982·Granted Dec 9, 1986·4 cites·10 claims
1935US4536850AMonitoring the status of the trip cycle in an electronic postage meterPITNEY BOWES INC·Filed 1982·Granted Aug 20, 1985·3 cites·26 claims
2030US4625282APostage meter with keyboard keys for causing display of data pertaining to meter operationPITNEY BOWES INC·Filed 1982·Granted Nov 25, 1986·0 cites·30 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →