Inventor · disambiguated record
Douglas J. Ertz
Also filed as: ERTZ DOUGLAS J · ERTZ DOUGLAS JOHN
6 granted patents·703 citations·filing 1989–2018
87Inventor score
Files withAT & T BELL LAB1QWEST COMMUNICATIONSS INTERNAT1US WEST ADVANCED TECH INC1US WEST INC1WATERS MICHAEL BLAYNE1
Top patents by PatentIndex Score
6 records- 0194US5003577AVoice and data interface to a voice-mail service systemAT & T BELL LAB·Filed 1989·Granted Mar 26, 1991·333 cites·29 claims
- 0291US5323444AEmergency call system with call capacity/last chance routing featureUS WEST ADVANCED TECH INC·Filed 1991·Granted Jun 21, 1994·199 cites·46 claims
- 0376US6535590B2Telephony systemQWEST COMMUNICATIONSS INTERNAT·Filed 1999·Granted Mar 18, 2003·125 cites·17 claims
- 0464US6002750AMethod and system for providing integrated wireline/wireless voice messaging serviceUS WEST INC·Filed 1997·Granted Dec 14, 1999·44 cites·13 claims
- 0554US10070294B2Processing and reporting situational information to emergency service providersWATERS MICHAEL BLAYNE·Filed 2007·Granted Sep 4, 2018·2 cites·15 claims
- 0650US10433146B1Processing and reporting situational information to emergency service providersWEST CORP·Filed 2018·Granted Oct 1, 2019·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →