Inventor · disambiguated record
John Donak
Also filed as: DONAK JOHN · DONAK JOHN R
6 granted patents·1 pending application·284 citations·filing 1982–2003
86Inventor score
Top patents by PatentIndex Score
7 records- 0185US4528664ACall progress signal monitor and method for telephone systemsNORTHERN TELECOM LTD·Filed 1982·Granted Jul 9, 1985·70 cites·7 claims
- 0283US6510219B1Alternate network fallback for IP telephonyNORTEL NETWORKS LTD·Filed 1999·Granted Jan 21, 2003·124 cites·22 claims
- 0354US6330316B1Alternate routing schemes using quality of service information for calls involving unreliable networksNORTEL NETWORKS LTD·Filed 1999·Granted Dec 11, 2001·38 cites·20 claims
- 0448US7283546B2System supporting the dynamic migration of telecommunication subscribers between call services providersCIENA CORP·Filed 2003·Granted Oct 16, 2007·4 cites·28 claims
- 0547US6408061B1Interfacing a communication switch to a non-embedded device driver via a virtual device interfaceNORTEL NETWORKS LTD·Filed 1999·Granted Jun 18, 2002·22 cites·6 claims
- 0644US6507648B1Method and apparatus for prioritizing voice and data in a circuit-switched networkNORTEL NETWORKS LTD·Filed 1998·Granted Jan 14, 2003·26 cites·22 claims
- 0736US2003142663A1System and method for providing distributed HDT-RT networksCATENA NETWORKS INC·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →