Inventor · disambiguated record
Gunter Fetzer
Also filed as: FETZER GUENTER · FETZER GUNTER · VON STEIN WALTER · WALTER ARTHUR
20 granted patents·449 citations·filing 1975–1997
96Inventor score
Top patents by PatentIndex Score
20 records- 0192US4346293AOptical electronic distance sensor with a parallel beam of light and adjustable detector-emitter separationSICK OPTIK ELEKTRONIK ERWIN·Filed 1980·Granted Aug 24, 1982·74 cites·7 claims
- 0288US4310756ALight grid arrangement using cyclically switched semiconductor light sourcesSICK OPTIK ELEKTRONIK ERWIN·Filed 1979·Granted Jan 12, 1982·45 cites·16 claims
- 0386US4603976AOptical mark recognition apparatusSICK OPTIK ELEKTRONIK ERWIN·Filed 1983·Granted Aug 5, 1986·50 cites·10 claims
- 0480US4402609ALight curtain apparatusSICK OPTIK ELEKTRONIK ERWIN·Filed 1980·Granted Sep 6, 1983·47 cites·16 claims
- 0571US4196961AOptical apparatus for correcting the spherical aberration of a spherical concave mirrorSICK OPTIK ELEKTRONIK ERWIN·Filed 1977·Granted Apr 8, 1980·25 cites·13 claims
- 0671US4076979ABottle color identification apparatusSICK ERWIN GMBH·Filed 1976·Granted Feb 28, 1978·20 cites·7 claims
- 0770US4044250ADevices for detecting the presence of an object in a monitored regionFETZER GUNTER·Filed 1975·Granted Aug 23, 1977·27 cites·17 claims
- 0869US4339660AReflection light barrier apparatus for recognizing both strongly and weakly reflecting objectsSICK OPTIK ELEKTRONIK ERWIN·Filed 1980·Granted Jul 13, 1982·29 cites·4 claims
- 0964US4464014ARetroreflectors, especially for beam scanning applications and beam scanning apparatus incorporating such retroreflectorsSICK OPTIK ELEKTRONIK ERWIN·Filed 1981·Granted Aug 7, 1984·21 cites·5 claims
- 1060US4899041ALight sensor for detecting an object in a certain distanceSICK OPTIK ELEKTRONIK ERWIN·Filed 1988·Granted Feb 6, 1990·22 cites·11 claims
- 1155US4875761ALight curtain apparatusSICK OPTIK ELEKTRONIK ERWIN·Filed 1987·Granted Oct 24, 1989·20 cites·4 claims
- 1254US4283623AReading apparatus for reading colored markings applied to objectsSICK OPTIK ELEKTRONIK ERWIN·Filed 1978·Granted Aug 11, 1981·10 cites·18 claims
- 1348US6069737AOptical arrangement with a diffractive optical elementSICK AG·Filed 1997·Granted May 30, 2000·14 cites·5 claims
- 1444US4851913APicture recording apparatusSICK OPTIK ELEKTRONIK ERWIN·Filed 1987·Granted Jul 25, 1989·8 cites·11 claims
- 1542US5080457AApparatus for generating a light curtainSICK OPTIK ELEKTRONIK ERWIN·Filed 1990·Granted Jan 14, 1992·12 cites·8 claims
- 1642US4156883ALight barrier arrangementSICK OPTIK ELEKTRONIK ERWIN·Filed 1977·Granted May 29, 1979·8 cites·18 claims
- 1735US4131804AElectrooptical scanning deviceSICK OPTIK ELEKTRONIK ERWIN·Filed 1977·Granted Dec 26, 1978·3 cites·12 claims
- 1833US4794258ASpectroanalytical gas measuring apparatusSICK OPTIK ELEKTRONIK ERWIN·Filed 1987·Granted Dec 27, 1988·7 cites·33 claims
- 1932US4798965AOptical autocollimation measuring apparatusSICK OPTIK ELEKTRONIK ERWIN·Filed 1987·Granted Jan 17, 1989·5 cites·11 claims
- 2030US4632500ARotatable mirror arrangement for generating a scanning beam which is displaced in steps parallel to itselfSICK ERWIN GMBH·Filed 1984·Granted Dec 30, 1986·2 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →