QC Optics, Inc.
🏢 View company profile →13Patents
0Active
13Granted
31Portfolio score
Filing activity: Dec 18, 1984 → Oct 13, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4794265A | Surface pit detection system and method | Physics | 74 | Expired |
| US4794264A | Surface defect detection and confirmation system and method | Physics | 54 | Expired |
| US5389794A | Surface pit and mound detection and discrimination system and method | Physics | 47 | Expired |
| US5672885A | Surface displacement detection and adjustment system | Physics | 42 | Expired |
| US5625193A | Optical inspection system and method for detecting flaws on a diffractive surface | Physics | 42 | Expired |
| US5610719A | Displacement detection system | Physics | 42 | Expired |
| US6603542B1 | High sensitivity optical inspection system and method for detecting flaws on a diffractive surface | Electricity | 35 | Expired |
| US5717198A | Pellicle reflectivity monitoring system having means for compensating for portions of light reflected by the pellicle | Physics | 21 | Expired |
| US5814829A | Multistation surface inspection system | Physics | 19 | Expired |
| US4943734A | Inspection apparatus and method for detecting flaws on a diffractive surface | Physics | 17 | Expired |
| US5602401A | Data processing system and method for a surface inspection apparatus | Physics | 7 | Expired |
| US4772127A | Surface inspection apparatus | Physics | 6 | Expired |
| US5675409A | Plate holder for a surface inspection system | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.