Kaiser Optical Systems Inc.
74Patents
24Active
74Granted
44Portfolio score
Filing activity: Jul 8, 1985 → Feb 12, 2021 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5862273A | Fiber optic probe with integral optical filtering | Physics | 290 | Expired |
| US5856842A | Apparatus facilitating eye-contact video communications | Physics | 217 | Expired |
| US5377004A | Remote optical measurement probe | Physics | 120 | Expired |
| US5861990A | Combined optical diffuser and light concentrator | Physics | 98 | Expired |
| US5929986A | Synchronous spectral line imaging methods and apparatus | Physics | 98 | Expired |
| US5418631A | Edge-lit holographic diffusers for flat-panel displays | Physics | 95 | Expired |
| US6907149B2 | Compact optical measurement probe | Physics | 72 | Expired |
| US6038363A | Fiber-optic spectroscopic probe with reduced background luminescence | Physics | 71 | Expired |
| US5471327A | Holographic diffuser for back-lit display | Physics | 63 | Expired |
| US5986756A | Spectroscopic probe with leak detection | Physics | 58 | Expired |
| US6867858B2 | Raman spectroscopy crystallization analysis method | Physics | 56 | Expired |
| US6449066B1 | Polarization insensitive, high dispersion optical element | Physics | 44 | Expired |
| US5011284A | Detection system for Raman scattering employing holographic diffraction | Physics | 42 | Expired |
| US4830441A | Holographic filter construction for protective eyewear | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5974211A | Enhanced collection efficiency fiber-optic probe | Physics | 35 | Expired |
| US7158225B2 | Multi-channel, self-calibrating fiber-coupled raman spectrometers including diagnostic and safety features | Physics | 34 | Expired |
| US4978182A | Laser protection visor with ellipsoidal geometry | Physics | 34 | Expired |
| US4818045A | Holographic optical element having periphery with gradually decreasing diffraction efficiency and method of construction | Physics | 28 | Expired |
| US5530565A | Holographic transmission bandpass filter | Physics | 26 | Expired |
| US5816681A | Inconspicuous light sources particularly for vehicular applications | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4688879A | Holographic multi-combiner for head-up display | Physics | 24 | Expired |
| US5943128A | Grating-based optical probe | Physics | 22 | Expired |
| US6278534A | Dispersive optical device | Physics | 21 | Expired |
| US6650412B1 | Thermal compensation for optical apparatus | Physics | 20 | Expired |
| US7148963B2 | Large-collection-area optical probe | Physics | 19 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.