Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 346/33A
Name: Recorders > Combined with external recorder operating means > Optical system

Patents under this class:

Patent Number Title Of Patent Date Issued
7165892 Downhole fiber optic wet connect and gravel pack completion Jan. 23, 2007
5825404 Flaw recovering apparatus for optical recording medium Oct. 20, 1998
5328822 Apparatus and method for sedimentation based blood analysis Jul. 12, 1994
5276459 Recording apparatus for performing uniform density image recording utilizing plural types of recording heads Jan. 4, 1994
5246866 Method for transcription of a DNA sequence Sep. 21, 1993
5159349 Recording apparatus which projects droplets of liquid through generation of bubbles in a liquid flow path in response to signals received from a photosensor Oct. 27, 1992
5053789 Optically-switched thermal printhead system Oct. 1, 1991
4977459 Ink-jet recording apparatus with mechanism for automatically regulating a recording head Dec. 11, 1990
4973123 Electro-optical rotary coupling suitable for tape scanners Nov. 27, 1990
4971414 Optical information record/read apparatus Nov. 20, 1990
4909616 Optical system for recording and reproducing an optical information medium Mar. 20, 1990
4861128 Optical pickup using a waveguide Aug. 29, 1989
4835544 Printing and packaging system and identifying an item of printed matter May. 30, 1989
4607267 Optical ink jet head for ink jet printer Aug. 19, 1986
4575808 Method of recording densitogram representing densities of fractionated substances Mar. 11, 1986
4566793 Recording apparatus for a spectrophotometer Jan. 28, 1986
4511986 Method and apparatus for simultaneously recording multiple FT-IR signals Apr. 16, 1985
4492966 Recording apparatus Jan. 8, 1985
4358203 Apparatus for analyzing and evaluating tests in a plurality of wells Nov. 9, 1982
4338033 Densitometer Jul. 6, 1982
RE30712 System and apparatus for contour plotting the total luminescence spectrum of a sample Aug. 18, 1981
4283732 Recording system with inter-line space positioning means Aug. 11, 1981
4242730 Single scan microprocessor-controlled densitometer Dec. 30, 1980
4222630 Digitally controlled fiber optic recording device Sep. 16, 1980
4130824 Recording analyzer for electrophoretic samples Dec. 19, 1978
4130784 Apparatus for compensating ordinate phase lag in a plotting apparatus Dec. 19, 1978
4116565 Electrophoretic analyzer with automatic reference circuit Sep. 26, 1978
4113385 Transient suppressor network for spectrophotometers and the like Sep. 12, 1978
4074272 Spectrophotometer having independently controlled chart scale expansion and chart format selection Feb. 14, 1978
4073621 Reader recorder for toxic gas concentration tapes Feb. 14, 1978
4069484 Defect plotting system Jan. 17, 1978
4051483 System for measuring and recording three dimensional configuration of object Sep. 27, 1977
4041502 Sedimentation recorder Aug. 9, 1977
4037960 Digitally settable selective control for speed of wavelength scan or for time base scan Jul. 26, 1977
4037961 System and apparatus for contour plotting the total luminescence spectrum of a sample Jul. 26, 1977
4038664 Recording chart lock Jul. 26, 1977
4005434 Method and apparatus for graphic densitometer display Jan. 25, 1977
4000946 Stepper motor tracking accuracy control for spectrophotometers Jan. 4, 1977
3995207 Digitally controlled repetitive scanning in a radiant energy analyzer Nov. 30, 1976
3976378 Apparatus for monitoring the selection of chart recording and wavelength scanning speeds in a radiant energy analyzer Aug. 24, 1976
3975748 Multispectral laser camera device Aug. 17, 1976
3965477 Automatic graphing apparatus Jun. 22, 1976
3961898 Comparator circuit for automatic analysis apparatus Jun. 8, 1976
3945018 Optical information recording device Mar. 16, 1976
3942893 Apparatus for monitoring the selection of chart recording and wavelength scanning speeds in a radiant energy analyzer Mar. 9, 1976
3938888 Automated precision flame-emission photometric apparatus Feb. 17, 1976
3936839 Method and system for monitoring the light output of pyrotechnic luminants under dynamic conditions Feb. 3, 1976

  Recently Added Patents
Reading apparatus and reading method
Creation and use of test cases for automated testing of media-based applications
Sericin cationic nanoparticles for application in products for hair and dyed hair
Creating three dimensional graphics data
High-voltage AC light-emitting diode structure
Expression of dirigent gene EG261 and its orthologs and paralogs enhances pathogen resistance in plants
Method of treating cancer using a survivin inhibitor
  Randomly Featured Patents
Microparticles with enhanced covalent binding capacity and their uses
Two level virtual channels
Field effect transistor having differing power dissipation across an array of transistors
Symmetric transmit opportunity (TXOP) truncation
Non-volatile ferroelectric memory
Television projector and stand device and methods of making and using the same
Module for producing hot humid air
Integrated circuit device
Window component extrusion
Omniramic optical system having central coverage means which is associated with a camera, projector, or similar article