Individual holder
CHANG SHIEN F
US·4 granted patents·71 citations·filing 1985–1990
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0180US4682738AGrinding millCHANG SHIEN F·Filed 1985·Granted Jul 28, 1987·33 cites·16 claims
- 0250US5067662ABowl type grinding millCHANG SHIEN F·Filed 1990·Granted Nov 26, 1991·14 cites·8 claims
- 0346US4632042AIncinerator for the high speed combustion of waste productsCHANG SHIEN F·Filed 1985·Granted Dec 30, 1986·12 cites·17 claims
- 0445US4748918AIncinerator for the high speed combustion of waste productsCHANG SHIEN F·Filed 1986·Granted Jun 7, 1988·12 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →