Spectratech Inc.
19Patents
3Active
19Granted
34Portfolio score
Filing activity: Feb 25, 1985 → Oct 21, 2008 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4730882A | Multiple internal reflectance spectroscopy system | Physics | 93 | Expired |
| US4661706A | Blocker device for eliminating specular reflectance from a diffuse reflection spectrum | Physics | 91 | Expired |
| US4712912A | Spectrophotometric image scrambler for full aperture microspectroscopy | Physics | 81 | Expired |
| US5019715A | Optical system and method for sample analyzation | Physics | 81 | Expired |
| US4859064A | Diffuse reflectance spectroscopy system and method | Physics | 75 | Expired |
| US4653880A | Reflective beam splitting objective | Physics | 75 | Expired |
| US5051602A | Optical system and method for sample analyzation | Physics | 65 | Expired |
| US4863253A | High magnification reflecting microscope objective having a dual magnification mode and zoom magnification capability | Physics | 29 | Expired |
| US4877960A | Microscope having dual remote image masking | Physics | 27 | Expired |
| US4810077A | Grazing angle microscope | Physics | 26 | Expired |
| US5093580A | ATR objective and method for sample analyzation using an ATR crystal | Physics | 23 | Expired |
| US5581085A | Infrared microspectrometer accessory | Physics | 20 | Expired |
| US7729732B2 | Biological information measuring apparatus and method for controlling the apparatus | Physics | 17 | Active |
| US4878747A | Aperture image beam splitter | Physics | 13 | Expired |
| US5864139A | Confocal microspectrometer system | Physics | 12 | Expired |
| US5015092A | Sampling probe for optical analyzation of a sample | Physics | 8 | Expired |
| US7570367B2 | Optical interference apparatus | Human Necessities | 6 | Active |
| US6038022A | Coupling device for integrating and interfacing accessory modules with spectrometers for spectroscopic analysis | Physics | 4 | Expired |
| US7569821B2 | Biological information measuring apparatus | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.