Inventor · disambiguated record
Donald Ritchie
Also filed as: HOLLENBECK WILLIAM · RITCHIE DONALD · RITCHIE DONALD C
3 granted patents·1 pending application·102 citations·filing 1977–2001
75Inventor score
Top patents by PatentIndex Score
4 records- 0188US4179059AAutomatic pipe welding apparatus and methodSANTA FE INT CORP·Filed 1977·Granted Dec 18, 1979·49 cites·52 claims
- 0263US5785222AArticle holder for mounting in a vehicleFiled 1996·Granted Jul 28, 1998·35 cites·13 claims
- 0344US2002133431A1Method for selling an article of jewelryFiled 2001·Application pending·0 cites
- 0442US4394109AArrangement and equipment for the displacement of blades, particularly propeller bladesDORNIER GMBH·Filed 1980·Granted Jul 19, 1983·18 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Donald Ritchie 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 →