Inventor
PLUMMER WILLIAM T
85 patents
⚠️ This page may combine multiple inventors who share the name “PLUMMER WILLIAM T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
POLAROID CORP
44 patentsUS6643390B1Nov 4, 2003
Compact fingerprint identification device
POLAROID CORP95 citations98
US4647975AMar 3, 1987
Exposure control system for an electronic imaging camera having increased dynamic range
POLAROID CORP221 citations97
US4689696AAug 25, 1987
Hybrid image recording and reproduction system
POLAROID CORP65 citations96
US4681451AJul 21, 1987
Optical proximity imaging method and apparatus
POLAROID CORP102 citations96
US4650292AMar 17, 1987
Analytic function optical component
POLAROID CORP114 citations96
US4416514ANov 22, 1983
Color filter
POLAROID CORP101 citations96
US4293892AOct 6, 1981
Zoom light apparatus
POLAROID CORP60 citations96
US4264167AApr 28, 1981
Adapter for coupling a camera with a viewing device
POLAROID CORP64 citations96
US5327291AJul 5, 1994
Compact objective lens
POLAROID CORP88 citations95
US4786964ANov 22, 1988
Electronic color imaging apparatus with prismatic color filter periodically interposed in front of an array of primary color filters
POLAROID CORP108 citations95
US6011577AJan 4, 2000
Modular optical print head assembly
POLAROID CORP46 citations94
US5260828ANov 9, 1993
Methods and means for reducing temperature-induced variations in lenses and lens devices
POLAROID CORP104 citations93
US4992824AFeb 12, 1991
Apparatus and method utilizing an LCD for printing
POLAROID CORP22 citations93
US4989959AFeb 5, 1991
Anti-aliasing optical system with pyramidal transparent structure
POLAROID CORP49 citations93
US4843481AJun 27, 1989
CCD scanning apparatus for use with rotary head printer
POLAROID CORP29 citations93
US4707063ANov 17, 1987
Widely spaced fiber optic connector and multiplexer/demultiplexer using same
POLAROID CORP25 citations93
US4687926AAug 18, 1987
Spectrally filtered lens producing plural f-numbers with different spectral characteristics
POLAROID CORP34 citations93
US4589745AMay 20, 1986
Geometric LED layout for line exposure
POLAROID CORP26 citations93
US4531702AJul 30, 1985
Injection mold for forming optical fiber connector
POLAROID CORP43 citations93
US4356538AOct 26, 1982
Photographic lighting apparatus
POLAROID CORP29 citations93
US4272186AJun 9, 1981
Camera method and apparatus for recording with selected contrast
POLAROID CORP33 citations93
US4157216AJun 5, 1979
Adapter for optically coupling a photographic camera with a viewing device
POLAROID CORP38 citations93
US4018514AApr 19, 1977
Apparatus for retinal photography
POLAROID CORP33 citations93
US5176972AJan 5, 1993
Imaging medium with low refractive index layer
POLAROID CORP49 citations92
US4759596AJul 26, 1988
Wavelength selective optical cavity including holographic filter layers
POLAROID CORP31 citations92
US4675531AJun 23, 1987
Optical scanner having a multi-surfaced lens arrangement for producing a rotationally symmetric beam
POLAROID CORP45 citations92
US6122115ASep 19, 2000
Method and device for mounting optical components
POLAROID CORP25 citations91
US6101333AAug 8, 2000
Method and apparatus for acquiring electronic and/or photographic images
POLAROID CORP22 citations91
US5933278AAug 3, 1999
Monolithic multi-faceted mirror for combining multiple beams from different light sources by reflection
POLAROID CORP27 citations91
US4925267AMay 15, 1990
Structure and fabrication of components for connecting optical fibers
POLAROID CORP48 citations91
US6595427B1Jul 22, 2003
Method and apparatus for encoding and decoding information in a non-visible manner
POLAROID CORP33 citations90
US4816939AMar 28, 1989
Magnetic recording media and servo systems using light-transmitting optical gratings
POLAROID CORP69 citations90
US4806034AFeb 21, 1989
Write head controller with grid synchronization
POLAROID CORP22 citations82
US4147408AApr 3, 1979
Back projection viewing screen
POLAROID CORP21 citations82
US4105308AAug 8, 1978
Aspheric plastic triplet
POLAROID CORP21 citations81
US4814118AMar 21, 1989
Method of molding a connector for optical fibers
POLAROID CORP19 citations80
US6097552AAug 1, 2000
Autofocus actuator device
POLAROID CORP16 citations75
US6104533AAug 15, 2000
Viewfinder with diffractive optical element
POLAROID CORP9 citations74
US4971869ANov 20, 1990
Color encoding photographic film
POLAROID CORP8 citations74
US4701045AOct 20, 1987
Method and apparatus for reducing optical artifacts
POLAROID CORP7 citations74
US4689005AAug 25, 1987
Molding apparatus
POLAROID CORP12 citations74
US4681427AJul 21, 1987
Electronic printing method
POLAROID CORP17 citations74
US4649324AMar 10, 1987
Method and apparatus for adjusting CRT geometry
POLAROID CORP17 citations74
US4549891AOct 29, 1985
Method for forming a non-symmetrical optical fiber
POLAROID CORP14 citations74
WTP OPTICS INC
3 patentsROBOTIC VISION SYSTEMS
2 patentsADC TELECOMMUNICATIONS INC
1 patentShowing the top 50 of 85 patents by PatentIndex Score.