Assignee
RUFF JOHN D
4 granted patents·121 citations·filing 1974–2014
Top patents by PatentIndex Score
4 records- 0191US3960322ASolar heat pumpRUFF JOHN D·Filed 1974·Granted Jun 1, 1976·70 cites·13 claims
- 0273US4897099AIce maker and water purifierRUFF JOHN D·Filed 1988·Granted Jan 30, 1990·28 cites·19 claims
- 0366US4642026ACentrifugal compressor with adjustable diffuserRUFF JOHN D·Filed 1984·Granted Feb 10, 1987·23 cites·18 claims
- 0447US9130492B2Animatronic system with unlimited axesRUFF JOHN D·Filed 2014·Granted Sep 8, 2015·0 cites·16 claims
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