Inventor · disambiguated record
Ferdinand M. Trees
Also filed as: TREES FERDINAND M · TREES FERDINAND MARINUS
4 granted patents·62 citations·filing 1974–1980
78Inventor score
Technology areasB26B
Files withPHILIPS CORP4
Top patents by PatentIndex Score
4 records- 0156US4275497AShaving apparatusPHILIPS CORP·Filed 1979·Granted Jun 30, 1981·18 cites·5 claims
- 0253US3973323AShaving head for a dry-shaving apparatusPHILIPS CORP·Filed 1974·Granted Aug 10, 1976·13 cites·3 claims
- 0351US4343086AShaving apparatusPHILIPS CORP·Filed 1980·Granted Aug 10, 1982·19 cites·1 claims
- 0445US4261101AShaving apparatus with lead cutterPHILIPS CORP·Filed 1978·Granted Apr 14, 1981·12 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →