Individual holder
JOHNSON CHARLES L
3 granted patents·32 citations·filing 1974–2010
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0180US8272381B2Closed circuit rebreatherJOHNSON CHARLES L·Filed 2010·Granted Sep 25, 2012·5 cites·20 claims
- 0262US4229133ALumber spacer and stick layerJOHNSON CHARLES L·Filed 1978·Granted Oct 21, 1980·14 cites·7 claims
- 0357US3938827ABicycle interconnecting apparatusJOHNSON CHARLES L·Filed 1974·Granted Feb 17, 1976·13 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when JOHNSON CHARLES L 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 →