Inventor · disambiguated record
Richard Westerfer
Also filed as: WESTERFER RICHARD · WESTERFER RICHARD W
7 granted patents·2 pending applications·376 citations·filing 1986–2011
88Inventor score
Top patents by PatentIndex Score
9 records- 0195US4712239ASecurity arrangement for downloadable cable television convertersGEN INSTRUMENT CORP·Filed 1986·Granted Dec 8, 1987·219 cites·11 claims
- 0292US7239338B2Videophone system and methodWORLDGATE SERVICE INC·Filed 2003·Granted Jul 3, 2007·75 cites·39 claims
- 0390US8063928B2Videophone system and methodKRISBERGH HAL M·Filed 2006·Granted Nov 22, 2011·20 cites·8 claims
- 0474US8089502B2Adaptive video telephone systemKRISBERGH HAL M·Filed 2005·Granted Jan 3, 2012·5 cites·17 claims
- 0567US5651065AInsertion of supplemental burst into video signals to thwart piracy and/or carry dataGEN INSTRUMENT CORP·Filed 1995·Granted Jul 22, 1997·36 cites·19 claims
- 0659US5146496AMethod and apparatus for enhancing the security of a scrambled television signalGEN INSTRUMENT CORP·Filed 1991·Granted Sep 8, 1992·19 cites·20 claims
- 0749US2011228041A1Videophone System and MethodKRISBERGH HAL M·Filed 2011·Application pending·0 cites
- 0838US2002023271A1System and method for enhanced navigationFiled 2000·Application pending·0 cites
- 0929US5287409AMethod and apparatus for frustrating vertical interval detection in scrambled television signalsGEN INSTRUMENT CORP·Filed 1993·Granted Feb 15, 1994·2 cites·17 claims
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