Individual holder
DOUGLAS JOHN H
3 granted patents·54 citations·filing 1998–1998
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0185USD416072SShowerhead filterDOUGLAS JOHN H·Filed 1998·Granted Nov 2, 1999·32 cites·1 claims
- 0261USD413371SCombined showerhead and filterDOUGLAS JOHN H·Filed 1998·Granted Aug 31, 1999·12 cites·1 claims
- 0357USD417904SShowerhead filter systemDOUGLAS JOHN H·Filed 1998·Granted Dec 21, 1999·10 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →