Inventor · disambiguated record
Lloyd R. Welch
Also filed as: WELCH LLOYD · WELCH LLOYD R
7 granted patents·225 citations·filing 1983–2004
86Inventor score
Top patents by PatentIndex Score
7 records- 0195US4633470AError correction for algebraic block codesCYCLOTOMICS INC·Filed 1983·Granted Dec 30, 1986·85 cites·2 claims
- 0292US6148428AMethod and apparatus for modulation encoding data for storage on a multi-level optical recording mediumCALIMETRICS INC·Filed 1998·Granted Nov 14, 2000·100 cites·16 claims
- 0367US5271022ADigital optical sound systemCYCLOTOMICS INC·Filed 1992·Granted Dec 14, 1993·18 cites·14 claims
- 0461US7280663B1Encryption system based on crossed inverse quasigroupsUNIV SOUTHERN CALIFORNIA·Filed 2000·Granted Oct 9, 2007·14 cites·28 claims
- 0546US7668895B2Galois field computationINTEGRATED SYS SOLUTION CORP·Filed 2004·Granted Feb 23, 2010·2 cites·6 claims
- 0641US6381724B1Method and apparatus for modulation encoding data for storage on a multi-level optical recording mediumCALIMETRICS INC·Filed 2000·Granted Apr 30, 2002·2 cites·40 claims
- 0734US5271021ADigital optical sound systemCYCLOTOMICS INC·Filed 1991·Granted Dec 14, 1993·4 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →