Inventor · disambiguated record
Friedrich Bertignoll
Also filed as: BERTIGNOLL FRIEDRICH
3 granted patents·158 citations·filing 1984–1995
74Inventor score
Files withNORTHERN TELECOM LTD3
Top patents by PatentIndex Score
3 records- 0188US5581683ALight diffusing apparatus with U-shaped light guideNORTHERN TELECOM LTD·Filed 1995·Granted Dec 3, 1996·117 cites·16 claims
- 0260US4817164AElectrostatic discharge protector for an electret microphoneNORTHERN TELECOM LTD·Filed 1987·Granted Mar 28, 1989·38 cites·15 claims
- 0333US4598176ATelephone handset cord guide and retainerNORTHERN TELECOM LTD·Filed 1984·Granted Jul 1, 1986·3 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →