Assignee
SCHAEFER MICHAEL J
US·3 granted patents·93 citations·filing 1978–1990
Top patents by PatentIndex Score
3 records- 0196US4217962AHydraulically operated grade scraperSCHAEFER MICHAEL J·Filed 1978·Granted Aug 19, 1980·80 cites·2 claims
- 0239US4893572AGrain drill planting depth controlSCHAEFER MICHAEL J·Filed 1988·Granted Jan 16, 1990·8 cites·1 claims
- 0330US4988091AElbow and forearm rehabilitation deviceSCHAEFER MICHAEL J·Filed 1990·Granted Jan 29, 1991·5 cites·20 claims
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