Assignee

ALEXANDER FREDERICK

US·2 granted patents·9 citations·filing 1986–2016

Technology mixA01C1 G06K1 G08B1

Top patents by PatentIndex Score

2 records

0182US9886837B1Personal alarm systemALEXANDER FREDERICK·Filed 2016·Granted Feb 6, 2018·7 cites·7 claims
0225US4733824AParticulate material distributor, having a tensioned flexible cover for clean-out aperture below hopperALEXANDER FREDERICK·Filed 1986·Granted Mar 29, 1988·2 cites·4 claims

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