Inventor · disambiguated record
Eduard W. Tietjens
Also filed as: DE VRIES JOCHEM J · TIETJENS EDUARD W · TIETJENS EDUARD WILLEM
22 granted patents·445 citations·filing 1975–1989
96Inventor score
Technology areasB26B
Files withPHILIPS CORP22
Top patents by PatentIndex Score
22 records- 0185US4044463AShaving apparatus with a holder for a cutting elementPHILIPS CORP·Filed 1976·Granted Aug 30, 1977·47 cites·3 claims
- 0280US4151645ADry-shaving apparatus with hair-pulling lead cuttersPHILIPS CORP·Filed 1977·Granted May 1, 1979·37 cites·3 claims
- 0373US4310968AShaving apparatusPHILIPS CORP·Filed 1980·Granted Jan 19, 1982·47 cites·6 claims
- 0469US3962784ADry-shaving apparatusPHILIPS CORP·Filed 1975·Granted Jun 15, 1976·27 cites·12 claims
- 0566US4192065AShaving apparatusPHILIPS CORP·Filed 1978·Granted Mar 11, 1980·24 cites·6 claims
- 0665US4240199AShaving apparatusPHILIPS CORP·Filed 1978·Granted Dec 23, 1980·23 cites·8 claims
- 0762US4707923AShaving apparatusPHILIPS CORP·Filed 1986·Granted Nov 24, 1987·26 cites·2 claims
- 0859US4283849ACutting unit for a dry-shaving apparatusPHILIPS CORP·Filed 1979·Granted Aug 18, 1981·20 cites·3 claims
- 0957US4882840ADry-shaving apparatusPHILIPS CORP·Filed 1988·Granted Nov 28, 1989·21 cites·13 claims
- 1056US4510687AShaving apparatusPHILIPS CORP·Filed 1982·Granted Apr 16, 1985·23 cites·2 claims
- 1156US4275497AShaving apparatusPHILIPS CORP·Filed 1979·Granted Jun 30, 1981·18 cites·5 claims
- 1256US4222168AShaving apparatusPHILIPS CORP·Filed 1978·Granted Sep 16, 1980·19 cites·1 claims
- 1354US4998352ACutting unit for a shaving apparatusPHILIPS CORP·Filed 1989·Granted Mar 12, 1991·19 cites·5 claims
- 1453US4894912AShaving apparatusPHILIPS CORP·Filed 1988·Granted Jan 23, 1990·18 cites·8 claims
- 1549US4811483ADry-shaving apparatus with self adjusting bladesPHILIPS CORP·Filed 1988·Granted Mar 14, 1989·17 cites·6 claims
- 1645US4261101AShaving apparatus with lead cutterPHILIPS CORP·Filed 1978·Granted Apr 14, 1981·12 cites·2 claims
- 1742US4811484ADry-shaving apparatusPHILIPS CORP·Filed 1988·Granted Mar 14, 1989·11 cites·2 claims
- 1842US4802281ADry shaving apparatusPHILIPS CORP·Filed 1988·Granted Feb 7, 1989·10 cites·1 claims
- 1937US4424628AShaving apparatusPHILIPS CORP·Filed 1982·Granted Jan 10, 1984·8 cites·2 claims
- 2037US4272884AShaving apparatusPHILIPS CORP·Filed 1979·Granted Jun 16, 1981·6 cites·2 claims
- 2136US4577408AHair-cutting devicePHILIPS CORP·Filed 1983·Granted Mar 25, 1986·6 cites·1 claims
- 2235US4347662AShaving apparatusPHILIPS CORP·Filed 1981·Granted Sep 7, 1982·6 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →