On-Line Technologies, Inc.
12Patents
0Active
12Granted
34Portfolio score
Filing activity: Apr 23, 1990 → Sep 22, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5900633A | Spectrometric method for analysis of film thickness and composition on a patterned sample | Physics | 145 | Expired |
| US6161054A | Cell control method and apparatus | Chemistry; Metallurgy | 97 | Expired |
| US5403433A | Method and apparatus for monitoring layer processing | Physics | 71 | Expired |
| US5604581A | Film thickness and free carrier concentration analysis method and apparatus | Physics | 49 | Expired |
| US5440143A | Folded-path optical analysis gas cell | Physics | 43 | Expired |
| US5486917A | Flexture plate motion-transfer mechanism, beam-splitter assembly, and interferometer incorporating the same | Physics | 31 | Expired |
| US6192287A | Method and apparatus for fault detection and control | Electricity | 26 | Expired |
| US5239488A | Apparatus and method for determining high temperature surface emissivity through reflectance and radiance measurements | Physics | 20 | Expired |
| US5675412A | System including unified beamsplitter and parallel reflecting element, and retroreflecting component | Physics | 14 | Expired |
| US5432336A | Detector signal correction method and system | Physics | 13 | Expired |
| US5285167A | Method and apparatus for signal compression | Electricity | 2 | Expired |
| US5473429A | Method and apparatus for controlling the reciprocating translation of an interferometer reflector or other body | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.