Individual holder
JOHNSTON HAROLD E
US·3 granted patents·1 pending application·24 citations·filing 1977–2012
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0170US4164930ACooking stoveJOHNSTON HAROLD E·Filed 1977·Granted Aug 21, 1979·22 cites·14 claims
- 0261US8282751B2Methods of forming a sensitized explosive and a percussion primerJOHNSTON HAROLD E·Filed 2009·Granted Oct 9, 2012·2 cites·20 claims
- 0358US8460486B1Percussion primer composition and systems incorporating sameJOHNSTON HAROLD E·Filed 2012·Granted Jun 11, 2013·0 cites·44 claims
- 0451US2006219341A1Heavy metal free, environmentally green percussion primer and ordnance and systems incorporating sameJOHNSTON HAROLD E·Filed 2005·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →