Assignee
SIERRA ENG CO
5 granted patents·262 citations·filing 1976–1977
Top patents by PatentIndex Score
5 records- 0190US4075714AHelmet characterized by negative liftSIERRA ENG CO·Filed 1976·Granted Feb 28, 1978·136 cites·15 claims
- 0280US4026245APersonal restraint deviceSIERRA ENG CO·Filed 1976·Granted May 31, 1977·57 cites·6 claims
- 0367US4126131AFacemask and goggle combination for excluding smoke or noxious gases from the gogglesSIERRA ENG CO·Filed 1977·Granted Nov 21, 1978·32 cites·16 claims
- 0467US4075715AHelmet having anti-lift deviceSIERRA ENG CO·Filed 1976·Granted Feb 28, 1978·30 cites·4 claims
- 0525US4059322ADust protective assembly for breakaway connectorsSIERRA ENG CO·Filed 1976·Granted Nov 22, 1977·7 cites·1 claims
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