Individual holder
RIGBY WILLIAM J
US·3 granted patents·1 pending application·4 citations·filing 1998–2009
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0150US6524546B2Process for making calcium chloridesRIGBY WILLIAM J·Filed 2001·Granted Feb 25, 2003·1 cites·20 claims
- 0247US2010195302A1Flexible guiding moduleRIGBY WILLIAM J·Filed 2009·Application pending·0 cites
- 0338US6475457B2Process for manufacturing potassium nitrate fertilizer and other metal nitratesRIGBY WILLIAM J·Filed 2001·Granted Nov 5, 2002·0 cites·21 claims
- 0435US6365122B1Process for manufacturing potassium sulfate fertilizer and other metal sulfatesRIGBY WILLIAM J·Filed 1998·Granted Apr 2, 2002·3 cites·17 claims
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