Inventor · disambiguated record
Steven L. Machacek
Also filed as: MACHACEK STEVEN L
4 granted patents·330 citations·filing 1994–1999
83Inventor score
Files withNOISE CANCELLATION TECH4
Top patents by PatentIndex Score
4 records- 0186US5901231APiezo speaker for improved passenger cabin audio systemsNOISE CANCELLATION TECH·Filed 1995·Granted May 4, 1999·90 cites·2 claims
- 0286US5638456APiezo speaker and installation method for laptop personal computer and other multimedia applicationsNOISE CANCELLATION TECH·Filed 1994·Granted Jun 10, 1997·129 cites·18 claims
- 0379US6215884B1Piezo speaker for improved passenger cabin audio systemNOISE CANCELLATION TECH·Filed 1998·Granted Apr 10, 2001·61 cites·10 claims
- 0472US6181797B1Piezo speaker for improved passenger cabin audio systemsNOISE CANCELLATION TECH·Filed 1999·Granted Jan 30, 2001·50 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →