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Class Information
Number: 250/372
Name: Radiant energy > Invisible radiant energy responsive electric signalling > Ultraviolet light responsive means
Description: Subject matter wherein the radiation responsive means responds to ultraviolet light.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4962910 |
Device for use to prevent human skin from excessive sunburns |
Oct. 16, 1990 |
| 4957012 |
Predictive aging of polymers |
Sep. 18, 1990 |
| 4945250 |
Optical read head for immunoassay instrument |
Jul. 31, 1990 |
| 4939370 |
Method of and device for inspecting and/or controlling metallization processes |
Jul. 3, 1990 |
| 4935631 |
Radiation meters |
Jun. 19, 1990 |
| 4922113 |
Process for fluorimetric monitoring of functional coatings and compositions and fluorescent agents therefor |
May. 1, 1990 |
| 4922112 |
Apparatus for determining the thickness of layer supports |
May. 1, 1990 |
| 4916319 |
Beam intensity profilometer |
Apr. 10, 1990 |
| 4910406 |
Method for detecting the presence of contaminants in a reusable plastic food or beverage container |
Mar. 20, 1990 |
| 4904876 |
Detection of ultraviolet radiation |
Feb. 27, 1990 |
| 4899055 |
Thin film thickness measuring method |
Feb. 6, 1990 |
| 4896040 |
Method of inspecting floppy disk casing |
Jan. 23, 1990 |
| 4889994 |
Detection of electromagnetic radiation |
Dec. 26, 1989 |
| 4885471 |
Ultraviolet radiometer |
Dec. 5, 1989 |
| 4885620 |
Semiconductor element |
Dec. 5, 1989 |
| 4882598 |
Method and an apparatus for determining an individual's ability to stand exposure to ultraviolet radiation |
Nov. 21, 1989 |
| 4871915 |
Detector for bremsstrahlung-isochromatic-spectroscopy (BIS) |
Oct. 3, 1989 |
| 4863282 |
Sun heat radiation sensor |
Sep. 5, 1989 |
| 4857738 |
Absorption measurements of materials |
Aug. 15, 1989 |
| 4853543 |
Method and apparatus for detecting a tracer gas using a single laser beam |
Aug. 1, 1989 |
| 4853542 |
Collecting hemispherical attachment for spectrophotometry |
Aug. 1, 1989 |
| 4851686 |
Ultraviolet radiation monitoring device |
Jul. 25, 1989 |
| 4851685 |
Device for measuring UV-radiation |
Jul. 25, 1989 |
| 4844617 |
Confocal measuring microscope with automatic focusing |
Jul. 4, 1989 |
| 4840487 |
Measuring apparatus for etching pits |
Jun. 20, 1989 |
| 4837441 |
Ionization detectors for gas chromatography |
Jun. 6, 1989 |
| 4831264 |
Method for measuring the concentration of adhesive on a coating layer surface |
May. 16, 1989 |
| 4826316 |
Radiation detection apparatus |
May. 2, 1989 |
| 4825078 |
Radiation sensor |
Apr. 25, 1989 |
| 4822748 |
Photosensor with enhanced quantum efficiency |
Apr. 18, 1989 |
| 4823368 |
Open counter for low energy electron detection with suppressed background noise |
Apr. 18, 1989 |
| 4820048 |
Detector for a spectrometer |
Apr. 11, 1989 |
| 4818491 |
Suntanning gauge |
Apr. 4, 1989 |
| 4812657 |
Multiunit tube and a spectrophotometer |
Mar. 14, 1989 |
| 4782234 |
Method and apparatus for subsurface contaminant detection and measurement |
Nov. 1, 1988 |
| 4776696 |
Optical system for high resolution spectrometer/monochromator |
Oct. 11, 1988 |
| 4775793 |
Method for determining chelated ferric ion concentration |
Oct. 4, 1988 |
| 4765413 |
Fire and explosion detection apparatus |
Aug. 23, 1988 |
| 4766317 |
Optical reflectance method of examining a SIMOX article |
Aug. 23, 1988 |
| 4763011 |
Ultraviolet radiation actinometer |
Aug. 9, 1988 |
| 4749865 |
Apparatus for determining an optium sunscreen factor at any given time |
Jun. 7, 1988 |
| 4742231 |
Radiation sensor |
May. 3, 1988 |
| 4736105 |
Flame detector system |
Apr. 5, 1988 |
| 4730925 |
Method of spectroscopically determining the composition of molten iron |
Mar. 15, 1988 |
| 4731881 |
Narrow spectral bandwidth, UV solar blind detector |
Mar. 15, 1988 |
| 4713547 |
Method and apparatus for monitoring the flow of mercury in a system |
Dec. 15, 1987 |
| 4704535 |
Ultraviolet dosimetry |
Nov. 3, 1987 |
| 4665627 |
Dry film curing machine with ultraviolet lamp controls |
May. 19, 1987 |
| 4661706 |
Blocker device for eliminating specular reflectance from a diffuse reflection spectrum |
Apr. 28, 1987 |
| 4659933 |
Surface analyzer and method |
Apr. 21, 1987 |
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