Individual holder
DONENFELD ROGER F
US·4 granted patents·86 citations·filing 1986–2018
Individually held — no corporate assignee on record.
Technology mixA61M4
Top patents by PatentIndex Score
4 records- 0165US9764105B2Connector and alerting deviceDONENFELD ROGER F·Filed 2014·Granted Sep 19, 2017·5 cites·20 claims
- 0260US10099025B2Connector and alerting deviceDONENFELD ROGER F·Filed 2016·Granted Oct 16, 2018·1 cites·17 claims
- 0353US4685457AEndotracheal tube and method of intubationDONENFELD ROGER F·Filed 1986·Granted Aug 11, 1987·80 cites·6 claims
- 0446US11123506B2Connector and alerting deviceDONENFELD ROGER F·Filed 2018·Granted Sep 21, 2021·0 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when DONENFELD ROGER F files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →