Gretag Aktiengesellschaft
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 25, 1995 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 830 Total Citation Count
- Mar 09, 1978 Earliest Filing
- 43 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
Top Patents (by citation)
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Recent Publications
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Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5113258 Compensation circuit for the correction of image defects of a television imageExpiredApr 09, 90May 12, 92[H04N]
5068810 Process for the determination of colorimetric differences between two screen pattern fields printed by a printing machine and process for the color control or ink regulation of the print of a printing machineExpiredJul 09, 90Nov 26, 91[G01N]
4998869 Apparatus for making particle mats with uniform weight distributionExpiredApr 06, 89Mar 12, 91[B27N]
4968140 Manual device for the determination or measurement of photometric data using a measuring headExpiredJan 24, 89Nov 06, 90[G01N, G01D]
4967379 Process for the ink control or regulation of a printing machine by comparing desired color to obtainable color dataExpiredDec 05, 88Oct 30, 90[G01N]
4961646 Manual device for the detection of optical reflection propertiesExpiredJan 24, 89Oct 09, 90[G01J, G01N]
4713537 Method and apparatus for the fine position adjustment of a laser beamExpiredAug 18, 86Dec 15, 87[H01J]
4675500 Laser processing apparatus with means for selectively varying the transverse mode distribution of the laser beamExpiredOct 29, 84Jun 23, 87[B23K]
4671661 Process, apparatus and color measuring strip for evaluating print qualityExpiredDec 19, 84Jun 09, 87[G01J]
4665496 Process and apparatus for the evaluation of the printing quality of a printed product by an offset printing machineExpiredOct 29, 84May 12, 87[G01J, B41F]
4649502 Process and apparatus for evaluating printing quality and for regulating the ink feed controls in an offset printing machineExpiredOct 29, 84Mar 10, 87[B41M, G06M, G01N]
4633074 Method and apparatus for focusing a beam of light on an objectExpiredJun 01, 84Dec 30, 86[G01J, G01C]
Top Inventors for This Owner
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