Inventor · disambiguated record
Donald F. Speirs
Also filed as: SPEIRS DONALD · SPEIRS DONALD F
7 granted patents·1,509 citations·filing 1988–2004
91Inventor score
Top patents by PatentIndex Score
7 records- 0198US5850187AIntegrated electronic tag reader and wireless communication linkAMTECH CORP·Filed 1996·Granted Dec 15, 1998·595 cites·27 claims
- 0296US5055659AHigh speed system for reading and writing data from and into remote tagsAMTECH TECHNOLOGY·Filed 1990·Granted Oct 8, 1991·241 cites·25 claims
- 0394US6078251AIntegrated multi-meter and wireless communication linkINTERMEC IP CORP·Filed 1997·Granted Jun 20, 2000·436 cites·50 claims
- 0489US4864158ARapid signal validity checking apparatusAMTECH CORP·Filed 1988·Granted Sep 5, 1989·84 cites·2 claims
- 0584US5504485ASystem for preventing reading of undesired RF signalsAMTECH CORP·Filed 1994·Granted Apr 2, 1996·96 cites·4 claims
- 0683US7671720B1Method and appratus for removing distortion in radio frequency signalsALIEN TECHNOLOGY CORP·Filed 2004·Granted Mar 2, 2010·47 cites·30 claims
- 0766US7215249B2Radio frequency identification readerALIEN TECHNOLOGY CORP·Filed 2004·Granted May 8, 2007·10 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →