Inventor · disambiguated record
Dean M. Umberger
Also filed as: UMBERGER DEAN · UMBERGER DEAN M · UMBERGER DEAN MICHAEL
5 granted patents·42 citations·filing 1994–2003
76Inventor score
Top patents by PatentIndex Score
5 records- 0151US6925178B2Returning ringing signals through the tip amplifier of subscriber-line interface circuitryLEGERITY INC·Filed 2003·Granted Aug 2, 2005·1 cites·28 claims
- 0247US5631797AOvervoltage protectorLUCENT TECHNOLOGIES INC·Filed 1995·Granted May 20, 1997·23 cites·4 claims
- 0343US6169425B1Voltage sensing current foldback switch circuitLUCENT TECHNOLOGIES INC·Filed 1998·Granted Jan 2, 2001·11 cites·18 claims
- 0441US5532498AHigh sensitivity control circuit for optical solid-state relaysAT & T CORP·Filed 1994·Granted Jul 2, 1996·7 cites·12 claims
- 0528US6333664B1Low operating power, high voltage ringing switch circuitAGERE SYST GUARDIAN CORP·Filed 2000·Granted Dec 25, 2001·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →