Inventor · disambiguated record
Emil Navratil
Also filed as: NAVRATIL EMIL
4 granted patents·11 citations·filing 1987–1994
67Inventor score
Technology areasH04M
Files withSIEMENS AG4
Top patents by PatentIndex Score
4 records- 0133US4894863AMethod for gain control in telephone sets having an electronic speech circuit, and apparatus for performing the methodSIEMENS AG·Filed 1987·Granted Jan 16, 1990·6 cites·27 claims
- 0226US5442695ARinger circuitSIEMENS AG·Filed 1994·Granted Aug 15, 1995·2 cites·12 claims
- 0326US4847898ASpeech circuit configurationSIEMENS AG·Filed 1987·Granted Jul 11, 1989·3 cites·25 claims
- 0425US5402017AControllable circuit configuration for compensating fluctuations in an amplifierSIEMENS AG·Filed 1994·Granted Mar 28, 1995·0 cites·7 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →