QC Optics, Inc.
Patent Owner
Stats
- 8 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Aug 05, 2003 most recent publication
Details
- 8 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 423 Total Citation Count
- May 16, 1980 Earliest Filing
- 7 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
6603542 High sensitivity optical inspection system and method for detecting flaws on a diffractive surfaceOct 13, 00Aug 05, 03[G01N]
5717198 Pellicle reflectivity monitoring system having means for compensating for portions of light reflected by the pellicleJul 10, 95Feb 10, 98[G01N]
5625193 Optical inspection system and method for detecting flaws on a diffractive surfaceJul 10, 95Apr 29, 97[G01N]
5602401 Data processing system and method for a surface inspection apparatusJul 10, 95Feb 11, 97[G01N]
5389794 Surface pit and mound detection and discrimination system and methodNov 25, 92Feb 14, 95[G01N]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5572968 Internal-combustion engine having an oil return systemExpiredJul 10, 95Nov 12, 96[F16N, F01M]
4943734 Inspection apparatus and method for detecting flaws on a diffractive surfaceExpiredJun 30, 89Jul 24, 90[G01N]
4794264 Surface defect detection and confirmation system and methodExpiredMay 08, 87Dec 27, 88[G01N]
4402607 Automatic detector for microscopic dust on large-area, optically unpolished surfacesExpiredMay 16, 80Sep 06, 83[G01N]
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