Assignee
FRANCIS JR RALPH M
3 granted patents·19 citations·filing 1983–2010
Top patents by PatentIndex Score
3 records- 0168US4519684APhoto flash lampFRANCIS JR RALPH M·Filed 1983·Granted May 28, 1985·13 cites·6 claims
- 0264US8568664B2Modular quad cell electro-mechanical ozone generation deviceFRANCIS JR RALPH M·Filed 2010·Granted Oct 29, 2013·1 cites·34 claims
- 0330US5313145APower supply for a gas discharge deviceFRANCIS JR RALPH M·Filed 1992·Granted May 17, 1994·5 cites·13 claims
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