Assignee
BUTTERFIELD GROUP
US·8 granted patents·230 citations·filing 1982–1986
Top patents by PatentIndex Score
8 records- 0170US4493703AHypodermic syringe cartridge with non-retractable drive pistonBUTTERFIELD GROUP·Filed 1984·Granted Jan 15, 1985·98 cites·2 claims
- 0267US4429803ABroken seal detectorBUTTERFIELD GROUP·Filed 1982·Granted Feb 7, 1984·33 cites·2 claims
- 0366US4418827ATamper-alerting device for vials and syringesBUTTERFIELD GROUP·Filed 1982·Granted Dec 6, 1983·31 cites·7 claims
- 0439US4713056ANon-reusable hypodermic syringeBUTTERFIELD GROUP·Filed 1986·Granted Dec 15, 1987·30 cites·5 claims
- 0535US4439187AHypodermic syringeBUTTERFIELD GROUP·Filed 1982·Granted Mar 27, 1984·18 cites·11 claims
- 0630US4531940ATamper-resistant hypodermic syringeBUTTERFIELD GROUP·Filed 1983·Granted Jul 30, 1985·9 cites·7 claims
- 0729US4447229ATamper-resistant hypodermic syringeBUTTERFIELD GROUP·Filed 1983·Granted May 8, 1984·5 cites·2 claims
- 0829US4392852ATamper-alerting hypodermic syringeBUTTERFIELD GROUP·Filed 1982·Granted Jul 12, 1983·6 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →