Assignee
SONG JOHN S
4 granted patents·258 citations·filing 1975–1986
Top patents by PatentIndex Score
4 records- 0195US4670398APlant tissue culture vessel and filterSONG JOHN S·Filed 1986·Granted Jun 2, 1987·46 cites·15 claims
- 0294US3998354AReusable sealed plastic coverSONG JOHN S·Filed 1975·Granted Dec 21, 1976·123 cites·6 claims
- 0384US4224765APlant culture containerSONG JOHN S·Filed 1979·Granted Sep 30, 1980·39 cites·7 claims
- 0478US4358908APlant culture vesselSONG JOHN S·Filed 1980·Granted Nov 16, 1982·50 cites·9 claims
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