Assignee
ROBERTS JR DAVID B
3 granted patents·27 citations·filing 1974–1976
Top patents by PatentIndex Score
3 records- 0155US4038779AEducational and multi-function hydroponics garden containerROBERTS JR DAVID B·Filed 1975·Granted Aug 2, 1977·16 cites·12 claims
- 0241US3952422APersistence test apparatusROBERTS JR DAVID B·Filed 1974·Granted Apr 27, 1976·4 cites·10 claims
- 0336US4048753AHydroponic garden structureROBERTS JR DAVID B·Filed 1976·Granted Sep 20, 1977·7 cites·8 claims
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