Inventor · disambiguated record
Donald Macdougal Campbell
Also filed as: CAMPBELL DONALD H · CAMPBELL DONALD M · CAMPBELL DONALD MACDOUGAL
2 granted patents·1 pending application·31 citations·filing 1995–2017
58Inventor score
Files withASSA ABLOY AB1
Top patents by PatentIndex Score
3 records- 0165US11348395B2Physical zone pace authenticationASSA ABLOY AB·Filed 2017·Granted May 31, 2022·2 cites·19 claims
- 0262US5626440ARetractable beach stairwayFiled 1995·Granted May 6, 1997·29 cites·18 claims
- 0339US2005129865A1Blocked isocyanates for clearcoats without usage restrictionsFiled 2003·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Donald Macdougal Campbell files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →