| Patents for G01J 3 - Spectrometry; Spectrophotometry; Monochromators; Measuring colours (33,177) |
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| 06/20/1978 | US4095896 Adaptive grating rate control |
| 06/20/1978 | US4095696 Produce grader |
| 06/13/1978 | US4095142 High frequency discharge lamp for a spectral-line source |
| 06/13/1978 | US4094609 High sensitivity absorptiometer |
| 06/06/1978 | US4093385 Color gradient analyzer |
| 05/30/1978 | US4092070 Tuning of etalons in spectroscopic apparatus |
| 05/30/1978 | US4092069 Spectrophotometer |
| 05/23/1978 | US4090792 Single beam photometer for investigating a specimen |
| 05/16/1978 | US4090243 Color separating method and apparatus using statistical techniques |
| 05/09/1978 | US4088407 High pressure fluorescence flow-through cuvette |
| 05/02/1978 | US4087183 Spectrograph |
| 04/25/1978 | US4086652 Method and apparatus for analyzing a time-dependent phenomenon |
| 04/18/1978 | US4084909 Drum monochromator |
| 04/18/1978 | US4084906 Multigas digital correlation spectrometer |
| 04/11/1978 | US4084248 Method and apparatus for error correction |
| 04/11/1978 | US4084100 Generation of coherent rotational anti-Stokes spectra |
| 04/11/1978 | US4084096 Electrically activated infrared source |
| 04/04/1978 | US4082464 Optical analysis system having rotating filters |
| 04/04/1978 | US4082461 Optical slit control apparatus |
| 03/28/1978 | US4081760 Etalon laser mode selector |
| 03/28/1978 | US4081215 Stable two-channel, single-filter spectrometer |
| 03/21/1978 | US4080658 System for maintaining below range synchronization in error correcting apparatus |
| 03/21/1978 | US4080264 Immunoassay by light scattering spectroscopy |
| 03/21/1978 | US4080073 Measurement of Raman scattering independent of fluorescence |
| 03/14/1978 | US4079256 Ratio-recording spectrophotometer with suppression of uncompensation |
| 03/07/1978 | US4077719 Continuous wave generation of coherent vibrational anti-stokes spectra |
| 02/28/1978 | US4076979 Bottle color identification apparatus |
| 02/28/1978 | US4076422 Fabry-Perot interference spectrometer |
| 02/21/1978 | US4075062 Culturing, defoaming |
| 02/21/1978 | US4074936 Method and apparatus for analyzing a composition of an alloy |
| 02/14/1978 | US4074272 Spectrophotometer having independently controlled chart scale expansion and chart format selection |
| 02/14/1978 | US4073623 Analytical determination of substances in solution |
| 02/14/1978 | US4073198 Apparatus for changing the speed ratio between first and second displaceable members |
| 01/24/1978 | US4070112 Spectrophotometer |
| 01/24/1978 | US4070111 Rapid scan spectrophotometer |
| 01/17/1978 | US4068954 Monochromator having a concave holographic grating |
| 01/17/1978 | US4068953 Raman scattering method and apparatus for measuring isotope ratios and isotopic abundances |
| 12/20/1977 | US4063818 Monochromator having a toroidal holographic diffraction grating and utilizable in the ultraviolet band |
| 12/06/1977 | US4061428 Scanning color densitometer |
| 11/29/1977 | US4060327 Wide band grating spectrometer |
| 11/29/1977 | US4060326 Optical instrument for measuring concentrations of polluting gases on long and short geometrical paths |
| 11/08/1977 | US4057352 Color grading apparatus utilizing infrared light source |
| 11/08/1977 | US4057349 Spectroscopic temperature measurement |
| 10/18/1977 | US4054812 Integrally focused low ozone illuminator |
| 10/18/1977 | US4054389 Spectrophotometer with photodiode array |
| 10/18/1977 | US4054384 Sample-background-signal autocancellation in fluid-sample analyzers, using symmetrical time-delay or time-averaging |
| 10/04/1977 | US4052121 Noncollinear tunable acousto-optic filter |
| 09/27/1977 | US4051371 Opto-acoustic spectroscopy employing amplitude and wavelength modulation |
| 09/20/1977 | US4049353 Spectrometric system and cassette |
| 09/13/1977 | US4048493 Light-sensitive control for colored light projector |
| 09/13/1977 | US4047818 Filter regulator for microspectrophotometer |
| 09/13/1977 | US4047817 Photographic color densitometer check plate |
| 09/13/1977 | US4047808 Adjustable slit mechanism |
| 08/23/1977 | US4044257 Retention time chromatograph employing an IR absorption spectrographic detector |
| 08/23/1977 | US4043675 Method and apparatus for comparing the color of a standard color with the color of a sample |
| 08/23/1977 | US4043670 Spectrometer and method of examining spectral composition of light |
| 08/23/1977 | US4043668 Portable reflectance spectrometer |
| 08/16/1977 | US4042491 Color recognition system |
| 08/09/1977 | US4040747 Optical analyzer for agricultural products |
| 07/26/1977 | US4038664 Recording chart lock |
| 07/26/1977 | US4037970 Optical analyzer for agricultural products |
| 07/26/1977 | US4037961 System and apparatus for contour plotting the total luminescence spectrum of a sample |
| 07/26/1977 | US4037960 Digitally settable selective control for speed of wavelength scan or for time base scan |
| 07/19/1977 | US4037048 Process for the interpretation of remotely sensed data |
| 07/19/1977 | US4036558 Focalization process of spherical concave diffraction gratings |
| 07/12/1977 | US4035643 Infrared gas analysis |
| 07/12/1977 | US4035086 Multi-channel analyzer for liquid chromatographic separations |
| 07/12/1977 | US4035083 Background correction in spectro-chemical analysis |
| 07/12/1977 | US4035080 Apparatus of spectroscopy of scattering light |
| 07/05/1977 | US4033699 Heavy water, absorption spectrum |
| 07/05/1977 | US4033698 Apparatus for textile color analysis |
| 06/21/1977 | US4031398 Video fluorometer |
| 06/21/1977 | US4030829 Keying waveform generator for spectrophotometer |
| 06/21/1977 | US4030828 Spectrophotometer |
| 06/14/1977 | US4029419 Textile color analyzer calibration |
| 06/14/1977 | US4029417 Reading device for a monochromator |
| 06/14/1977 | US4029416 Sample-background-signal autocancellation in fluid-sample analyzers |
| 06/07/1977 | US4027975 Scanning monochromator and concave reflecting grating employed therein |
| 05/24/1977 | US4025199 Optical color mixing method |
| 05/24/1977 | US4025196 Asymmetric double pass grating monochromator |
| 05/17/1977 | US4024396 Method and apparatus for detection utilizing Rydberg levels |
| 05/10/1977 | US4022531 Monochromator |
| 05/10/1977 | US4022529 Feature extraction system for extracting a predetermined feature from a signal |
| 04/19/1977 | US4018529 Spectroscopic temperature measurement |
| 04/12/1977 | US4017192 Optical analysis of biomedical specimens |
| 04/12/1977 | US4017191 Two-beam photometer with rotatable graded interference filter |
| 04/12/1977 | US4017185 Optical arrangements for coupling monochromators with external systems |
| 04/12/1977 | US4017162 Adjustable slit mechanism |
| 03/29/1977 | US4015130 Method and apparatus for monitoring optical radiation |
| 03/29/1977 | US4014614 High resolution, high contrast Fabry-Perot spectrometer |
| 03/15/1977 | US4012147 Slit-less spectrometer |
| 03/15/1977 | US4012145 Spectroscopic analysis apparatus employing measurement and reference radiation |
| 03/08/1977 | US4011013 Multifrequency excitation of gas rotational spectra |
| 03/01/1977 | US4009962 Emission spectroscopic system having compensation for background radiation |
| 03/01/1977 | US4009527 Coordinated color chart system, and method for producing same |
| 02/22/1977 | US4008961 Monochromatic detection of plural rotational Raman spectra generated by multiple frequency excitation |
| 02/15/1977 | USRE29138 System for performing spectral analyses under computer control |
| 02/15/1977 | US4007989 Hadamard filter design |
| 02/01/1977 | US4005937 Simultaneous interferometric transmission of periodic spectral components |
| 01/18/1977 | US4003662 Portable photometer |