Inventor · disambiguated record
John Danna
Also filed as: DANNA JOHN · DANNA JOHN M · DANNA JOHN MARK
4 granted patents·276 citations·filing 1984–1999
77Inventor score
Top patents by PatentIndex Score
4 records- 0196US6325159B1Offshore drilling systemHYDRIL CO·Filed 1999·Granted Dec 4, 2001·250 cites·24 claims
- 0249US4548326AStadium seat arm gripping trayDANNA JOHN M·Filed 1984·Granted Oct 22, 1985·23 cites·2 claims
- 0330USD302087SContainer holder for attachment to a chair armSPEROS MARK·Filed 1986·Granted Jul 11, 1989·3 cites·1 claims
- 0417USD297793SContainer holder for attachment to a chair armDANNA JOHN·Filed 1985·Granted Sep 27, 1988·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →