Assignee
HARTMANN RICHARD
US·2 granted patents·63 citations·filing 1989–2000
Top patents by PatentIndex Score
2 records- 0188US6576035B2Stabilized enhanced efficiency controllable release calcium cyanamide compositionsHARTMANN RICHARD·Filed 2000·Granted Jun 10, 2003·41 cites·36 claims
- 0239US4870710ABody-liquid collecting and mattress protecting apparatusHARTMANN RICHARD·Filed 1989·Granted Oct 3, 1989·22 cites·13 claims
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