Fetzer; Gunter

Patent Applications and Registrations

Patent applications and USPTO patent grants for Fetzer; Gunter.The latest application filed is for "optical arrangement with a diffractive optical element".

Company Profile

0.20.0

Fetzer; Gunter - Gundelfingen DE

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Optical arrangement with a diffractive optical element Grant 6,069,737 - Fetzer , et al. May 30, 2	2000-05-30
Apparatus for generating a light curtain Grant 5,080,457 - Fetzer , et al. January 14, 1	1992-01-14
Light sensor for detecting an object in a certain distance Grant 4,899,041 - Fetzer , et al. February 6, 1	1990-02-06
Light curtain apparatus Grant 4,875,761 - Fetzer October 24, 1	1989-10-24
Picture recording apparatus Grant 4,851,913 - Fetzer , et al. July 25, 1	1989-07-25
Optical autocollimation measuring apparatus Grant 4,798,965 - Fetzer , et al. January 17, 1	1989-01-17
Spectroanalytical gas measuring apparatus Grant 4,794,258 - Fetzer , et al. December 27, 1	1988-12-27
Rotatable mirror arrangement for generating a scanning beam which is displaced in steps parallel to itself Grant 4,632,500 - Fetzer December 30, 1	1986-12-30
Optical mark recognition apparatus Grant 4,603,976 - Fetzer , et al. August 5, 1	1986-08-05
Retroreflectors, especially for beam scanning applications and beam scanning apparatus incorporating such retroreflectors Grant 4,464,014 - Sick , et al. August 7, 1	1984-08-07
Light curtain apparatus Grant 4,402,609 - Fetzer , et al. September 6, 1	1983-09-06
Optical electronic distance sensor with a parallel beam of light and adjustable detector-emitter separation Grant 4,346,293 - Fetzer August 24, 1	1982-08-24
Reflection light barrier apparatus for recognizing both strongly and weakly reflecting objects Grant 4,339,660 - Buchholz , et al. July 13, 1	1982-07-13
Light grid arrangement using cyclically switched semiconductor light sources Grant 4,310,756 - Sick , et al. January 12, 1	1982-01-12
Reading apparatus for reading colored markings applied to objects Grant 4,283,623 - von Stein , et al. August 11, 1	1981-08-11
Optical apparatus for correcting the spherical aberration of a spherical concave mirror Grant 4,196,961 - Walter , et al. April 8, 1	1980-04-08
Light barrier arrangement Grant 4,156,883 - Walter , et al. May 29, 1	1979-05-29
Electrooptical scanning device Grant 4,131,804 - Sick , et al. December 26, 1	1978-12-26
Bottle color identification apparatus Grant 4,076,979 - Walter , et al. February 28, 1	1978-02-28
Devices for detecting the presence of an object in a monitored region Grant 4,044,250 - Fetzer August 23, 1	1977-08-23

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