Inventor · disambiguated record
Douglas Ritchie
Also filed as: RITCHIE DOUGLAS · RITCHIE DOUGLAS E
6 granted patents·53 citations·filing 1986–2019
80Inventor score
Top patents by PatentIndex Score
6 records- 0187USD322415STimepiece faceBY DESIGN CORP·Filed 1989·Granted Dec 17, 1991·32 cites·1 claims
- 0245USD319399SMantel clockRITCHIE DOUGLAS·Filed 1989·Granted Aug 27, 1991·6 cites·1 claims
- 0343US11056354B2Semiconductor separation deviceLUMENTUM TECH UK LIMITED·Filed 2019·Granted Jul 6, 2021·0 cites·20 claims
- 0443US4693613ALogo clockBY DESIGN CORP·Filed 1986·Granted Sep 15, 1987·9 cites·21 claims
- 0542USD302528SPrism clockBY DESIGN CORP·Filed 1986·Granted Aug 1, 1989·4 cites·1 claims
- 0628US4674891AClockBY DESIGN CORP·Filed 1986·Granted Jun 23, 1987·2 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →