Inventor · disambiguated record
David W. Petr
Also filed as: PETR DAVID W
4 granted patents·249 citations·filing 1982–2009
79Inventor score
Top patents by PatentIndex Score
4 records- 0192US4437087AAdaptive differential PCM codingBELL TELEPHONE LABOR INC·Filed 1982·Granted Mar 13, 1984·184 cites·43 claims
- 0280US4518950ADigital code converterAT & T BELL LAB·Filed 1982·Granted May 21, 1985·30 cites·11 claims
- 0376US4607364AMultimode data communication systemNEUMANN JEFFREY·Filed 1983·Granted Aug 19, 1986·34 cites·47 claims
- 0446US8321211B2System and method for multi-channel pitch detectionPETR DAVID W·Filed 2009·Granted Nov 27, 2012·1 cites·18 claims
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