Inventor · disambiguated record
Friedrich Perrot
Also filed as: PERROT FRIEDRICH
14 granted patents·170 citations·filing 1975–1996
93Inventor score
Files withEBAUCHESFABRIK ETA AG14
Top patents by PatentIndex Score
14 records- 0175US4057885AMethod of producing an oscillating weight for automatic timepiecesEBAUCHESFABRIK ETA AG·Filed 1976·Granted Nov 15, 1977·21 cites·5 claims
- 0272US4023348APositioning arrangement on a frame member and on a part having to be secured theretoEBAUCHESFABRIK ETA AG·Filed 1975·Granted May 17, 1977·20 cites·5 claims
- 0371US5699324ADevice for securing a watch dialEBAUCHESFABRIK ETA AG·Filed 1996·Granted Dec 16, 1997·21 cites·19 claims
- 0466US4362396ABattery holder for electronic wrist watchEBAUCHESFABRIK ETA AG·Filed 1980·Granted Dec 7, 1982·21 cites·8 claims
- 0565US4213295AArrangement for securing a dial to a plate in a timepieceEBAUCHESFABRIK ETA AG·Filed 1978·Granted Jul 22, 1980·15 cites·1 claims
- 0661US4077201AExtractable barrel-arborEBAUCHESFABRIK ETA AG·Filed 1976·Granted Mar 7, 1978·13 cites·8 claims
- 0760US5206554AElectromagnetic micromotor for use in watch movements of small dimensionsEBAUCHESFABRIK ETA AG·Filed 1991·Granted Apr 27, 1993·26 cites·11 claims
- 0850US3956881AHairspring and collet assembly for timepiecesEBAUCHESFABRIK ETA AG·Filed 1975·Granted May 18, 1976·9 cites·13 claims
- 0942US4157008AMechanical watch movementEBAUCHESFABRIK ETA AG·Filed 1976·Granted Jun 5, 1979·4 cites·4 claims
- 1039US5010532AElectronic watch having an opening for receiving a battery and a cover closing this opening, and method of mass-producing this watchEBAUCHESFABRIK ETA AG·Filed 1989·Granted Apr 23, 1991·6 cites·28 claims
- 1138US5430694ATimepieceEBAUCHESFABRIK ETA AG·Filed 1993·Granted Jul 4, 1995·6 cites·10 claims
- 1235US6092923ATimepiece including fixation device for an element added to a frameEBAUCHESFABRIK ETA AG·Filed 1994·Granted Jul 25, 2000·4 cites·10 claims
- 1329US4026104AWatch movement frameEBAUCHESFABRIK ETA AG·Filed 1975·Granted May 31, 1977·0 cites·16 claims
- 1424US5408151AElectromagnetic motor, in particular of the stepping type, including a case engaged within a statorEBAUCHESFABRIK ETA AG·Filed 1994·Granted Apr 18, 1995·4 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →