Individual holder
CHEN CHUNG F
US·3 granted patents·159 citations·filing 1989–1992
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0183US5290073AExpansion seal for cable pipeCHEN CHUNG F·Filed 1992·Granted Mar 1, 1994·56 cites·8 claims
- 0281US5035265AStructure of pipe plugCHEN CHUNG F·Filed 1989·Granted Jul 30, 1991·51 cites·1 claims
- 0380US5044403ADirt and moisture sealing pipe plug for sealing different size pipeCHEN CHUNG F·Filed 1990·Granted Sep 3, 1991·52 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →