Inventor · disambiguated record
Ronald F. Checksfield
Also filed as: CHECKSFIELD RONALD F
2 granted patents·35 citations·filing 1990–1991
61Inventor score
Technology areasG01F
Top patents by PatentIndex Score
2 records- 0160US5253651AVentilatory instrument for measuring peak expiratory flowFERRARIS DEV & ENG CO LTD·Filed 1991·Granted Oct 19, 1993·29 cites·18 claims
- 0237USD333004SVentilatory instrument for measuring peak expiratory flowFERRARIS DEVELOPMENT AND ENGINEERING COMPANY LTD·Filed 1990·Granted Feb 2, 1993·6 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →