Assignee
JOHNSON RONALD A
3 granted patents·328 citations·filing 1977–2003
Top patents by PatentIndex Score
3 records- 0192US4146022AFracture fixation by cerclage utilizing cortical bone tack and pull-out tension deviceJOHNSON RONALD A·Filed 1977·Granted Mar 27, 1979·261 cites·14 claims
- 0266US5085231AHat-like apparatus for directing air flowJOHNSON RONALD A·Filed 1990·Granted Feb 4, 1992·57 cites·11 claims
- 0361US7055521B1Ventilated mask for outdoor useJOHNSON RONALD A·Filed 2003·Granted Jun 6, 2006·10 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when JOHNSON RONALD A 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 →