Individual holder
RICHARDSON MARGARET P
GB·2 granted patents·1 pending application·37 citations·filing 1989–2003
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0140US2005256447A1Control of liquid flow into or out of a human or animal bodyRICHARDSON MARGARET P·Filed 2003·Application pending·0 cites
- 0236US5193555ABarrier deviceRICHARDSON MARGARET P·Filed 1989·Granted Mar 16, 1993·19 cites·17 claims
- 0333US5146930AContraceptive and anti-infective barrier deviceRICHARDSON MARGARET P·Filed 1991·Granted Sep 15, 1992·18 cites·28 claims
Join the waitlist — get patent alerts
Get an alert when RICHARDSON MARGARET P 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 →