Inventor · disambiguated record
Douglas R. Cardy
Also filed as: CARDY DOUGLAS R · CARDY DOUGLAS ROSS
4 granted patents·137 citations·filing 1994–2002
77Inventor score
Technology areasH04Q
Top patents by PatentIndex Score
4 records- 0190US6041109ATelecommunications system having separate switch intelligence and switch fabricMCI COMMUNICATIONS CORP·Filed 1995·Granted Mar 21, 2000·117 cites·8 claims
- 0243US5577113AApparatus and method for virtual private telephone line with automatic ring downDSC COMMUNICATIONS·Filed 1995·Granted Nov 19, 1996·9 cites·37 claims
- 0341US5487110AApparatus and method for virtual private telephone line with automatic ring downDSC COMMUNICATIONS·Filed 1994·Granted Jan 23, 1996·11 cites·9 claims
- 0437USRE43361ETelecommunications system having separate switch intelligence and switch fabricCARDY DOUGLAS R·Filed 2002·Granted May 8, 2012·0 cites·58 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →