Individual holder
CHALLIS LOUIS A
3 granted patents·93 citations·filing 1976–1984
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0187US4174020AAcoustic treatment for fansCHALLIS LOUIS A·Filed 1976·Granted Nov 13, 1979·58 cites·13 claims
- 0277US4279325AAcoustic treatment for fansCHALLIS LOUIS A·Filed 1979·Granted Jul 21, 1981·33 cites·4 claims
- 0325US4596307AFluid discharge silencerCHALLIS LOUIS A·Filed 1984·Granted Jun 24, 1986·2 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →