Inventor · disambiguated record
William D. Castagna
Also filed as: CASTAGNA WILLIAM D
5 granted patents·1 pending application·179 citations·filing 1987–2002
84Inventor score
Technology areasH04M
Top patents by PatentIndex Score
6 records- 0169US6266400B1Method for customizing and managing information in a voice mail system to facilitate call handlingUNISYS PULSEPOINT COMM·Filed 1998·Granted Jul 24, 2001·59 cites·2 claims
- 0267US6961410B1Method for customizing information for interacting with a voice mail systemUNISYS PULSEPOINT COMM·Filed 1998·Granted Nov 1, 2005·54 cites·4 claims
- 0367US6442245B1System and method for providing voice messaging services utilizing a network connectionUNISYS CORP·Filed 1999·Granted Aug 27, 2002·46 cites·8 claims
- 0446US6546084B1Voice mail system and method with subscriber selection of agent personalities telephone user interface address book and time zone awarenessUNISYS CORP·Filed 1999·Granted Apr 8, 2003·15 cites·10 claims
- 0544US2003099333A1System and method for providing voice messaging services utilizing a network connectionFiled 2002·Application pending·0 cites
- 0642USD309596SWatercraftCASTAGNA WILLIAM D·Filed 1987·Granted Jul 31, 1990·5 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →