Inventor · disambiguated record
Charles R. Farquharson
Also filed as: FARQUHARSON CHARLES R
5 granted patents·448 citations·filing 1975–1986
86Inventor score
Files withAMER SPORT INT INC1AMER SPORT INTERNATIONAL INC1CANADA CYCLE AND MOTOR COMPANY1CANADIAN CYCLE & MOTOR COMPANY LTD1FARQUHARSON CHARLES R1
Top patents by PatentIndex Score
5 records- 0193US4404690AHockey helmetAMER SPORT INTERNATIONAL INC·Filed 1981·Granted Sep 20, 1983·266 cites·26 claims
- 0292USD271249SHockey helmet or similar articleAMER SPORT INT INC·Filed 1982·Granted Nov 8, 1983·59 cites·1 claims
- 0391USD243127SMouth guard for a sports helmetCANADIAN CYCLE & MOTOR COMPANY LTD·Filed 1975·Granted Jan 25, 1977·44 cites·1 claims
- 0484US3984875AProtective head gearCANADA CYCLE AND MOTOR COMPANY·Filed 1975·Granted Oct 12, 1976·57 cites·10 claims
- 0559US4671427AMilk bag pitcherFARQUHARSON CHARLES R·Filed 1986·Granted Jun 9, 1987·22 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →