Inventor · disambiguated record
Edward C. Duwel
Also filed as: DUWEL EDWARD C
20 granted patents·508 citations·filing 1979–1985
96Inventor score
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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