Inventor · disambiguated record

James W. Grenfell

Also filed as: GRENFELL JAMES W

2 granted patents·88 citations·filing 1974–1974

66Inventor score

Technology areasA61C G09B

Files withGRENFELL JAMES W1 MORITA MFG1

Top patents by PatentIndex Score

2 records

0185US3943914ARemote-recording periodontal depth probeGRENFELL JAMES W·Filed 1974·Granted Mar 16, 1976·76 cites·15 claims
0260US3943629ATraining machine for intra-oral instrumentationMORITA MFG·Filed 1974·Granted Mar 16, 1976·12 cites·20 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →