Inventor · disambiguated record
Evan N. Chen
Also filed as: CHEN EVAN · CHEN EVAN N · CHEN EVAN NAI-KEUNG
31 granted patents·1,159 citations·filing 1975–1995
98Inventor score
Files withWARNER LAMBERT CO31
Top patents by PatentIndex Score
31 records- 0196USD327550SRazor handleWARNER LAMBERT CO·Filed 1990·Granted Jun 30, 1992·64 cites·1 claims
- 0294US5157834ARazor mechanism with slidable cartridge supportWARNER LAMBERT CO·Filed 1990·Granted Oct 27, 1992·119 cites·33 claims
- 0393US5689883AShaving implementWARNER LAMBERT CO·Filed 1995·Granted Nov 25, 1997·117 cites·40 claims
- 0493US4146958ASafety razorWARNER LAMBERT CO·Filed 1976·Granted Apr 3, 1979·106 cites·14 claims
- 0591US4854043AFlexible razor headWARNER LAMBERT CO·Filed 1987·Granted Aug 8, 1989·81 cites·4 claims
- 0689US5107590ARazor handleWARNER LAMBERT CO·Filed 1991·Granted Apr 28, 1992·83 cites·7 claims
- 0787US5182858ARazor mechanismWARNER LAMBERT CO·Filed 1990·Granted Feb 2, 1993·75 cites·19 claims
- 0887US4428116ASupport for releasably retaining a blade cartridgeWARNER LAMBERT CO·Filed 1983·Granted Jan 31, 1984·72 cites·1 claims
- 0984US5003694AFlexible razor headWARNER LAMBERT CO·Filed 1990·Granted Apr 2, 1991·65 cites·47 claims
- 1081USD402084SGuard barWARNER LAMBERT CO·Filed 1995·Granted Dec 1, 1998·28 cites·1 claims
- 1178US4976028AFlexible razor headWARNER LAMBERT CO·Filed 1989·Granted Dec 11, 1990·46 cites·23 claims
- 1274US5044077ARazor mechanismWARNER LAMBERT CO·Filed 1990·Granted Sep 3, 1991·47 cites·20 claims
- 1367US4205437AClean-out device for twin blade shaving unitWARNER LAMBERT CO·Filed 1979·Granted Jun 3, 1980·25 cites·9 claims
- 1467US4016648ASafety razorWARNER LAMBERT CO·Filed 1975·Granted Apr 12, 1977·27 cites·6 claims
- 1566US5377409AOne-push cleaning mechanism for flexible wet-shaving razor unitWARNER LAMBERT CO·Filed 1992·Granted Jan 3, 1995·37 cites·33 claims
- 1663USD255163SSafety razor cartridge with clean-out deviceWARNER LAMBERT CO·Filed 1978·Granted May 27, 1980·7 cites·1 claims
- 1763USD250775SRazor blade cartridgeWARNER LAMBERT CO·Filed 1976·Granted Jan 9, 1979·7 cites·1 claims
- 1860US4285125ABarber-type razorWARNER LAMBERT CO·Filed 1979·Granted Aug 25, 1981·20 cites·18 claims
- 1959USD253375SSafety razor cartridge with clean-out mechanismWARNER LAMBERT CO·Filed 1977·Granted Nov 6, 1979·6 cites·1 claims
- 2055USD255161SSafety razor cartridge with clean-out deviceWARNER LAMBERT CO·Filed 1978·Granted May 27, 1980·5 cites·1 claims
- 2153US4078552ADevice for and method of making standard and reproducible skin puncturesWARNER LAMBERT CO·Filed 1975·Granted Mar 14, 1978·25 cites·14 claims
- 2252US4344227AClean-out mechanism for twin blade shaving unitWARNER LAMBERT CO·Filed 1980·Granted Aug 17, 1982·18 cites·10 claims
- 2351US4554735AOne-piece disposable razorWARNER LAMBERT CO·Filed 1984·Granted Nov 26, 1985·15 cites·1 claims
- 2450USD329105SFlexible razor cartridgeWARNER LAMBERT CO·Filed 1990·Granted Sep 1, 1992·6 cites·1 claims
- 2550US4425705ARazor with lever operated blade coverWARNER LAMBERT CO·Filed 1981·Granted Jan 17, 1984·15 cites·1 claims
- 2646US4294010ARotatable safety razor and blade cartridge thereforWARNER LAMBERT CO·Filed 1980·Granted Oct 13, 1981·12 cites·19 claims
- 2743US4454653ABarber-type razorWARNER LAMBERT CO·Filed 1982·Granted Jun 19, 1984·11 cites·2 claims
- 2840US4555030ADisposable razor rackWARNER LAMBERT CO·Filed 1984·Granted Nov 26, 1985·11 cites·2 claims
- 2939USD327336SFlexible razor cartridgeWARNER LAMBERT CO·Filed 1990·Granted Jun 23, 1992·3 cites·1 claims
- 3036USD329922SFlexible razor cartridgeWARNER LAMBERT CO·Filed 1990·Granted Sep 29, 1992·2 cites·1 claims
- 3133US4159567AShaving instrumentWARNER LAMBERT CO·Filed 1977·Granted Jul 3, 1979·4 cites·9 claims
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