Inventor
LAND EDWIN H
US46 patents
Patents
46 patentsUS4119770AOct 10, 1978
Electrical cells and batteries
POLAROID CORP96 citations96
US4007472AFeb 8, 1977
Flat battery with dry cathode strata and slurry cathode strata
POLAROID CORP57 citations96
US4895769AJan 23, 1990
Method for preparing light polarizer
POLAROID CORP175 citations95
US4007469AFeb 8, 1977
Photographic apparatus with plurality of selectively determinable operational modes
POLAROID CORP60 citations95
US4366235ADec 28, 1982
Photosensitive element and method of preparing same
POLAROID CORP29 citations93
US4165153AAug 21, 1979
Translucent screen
POLAROID CORP32 citations93
US4125684ANov 14, 1978
Electrical cells and batteries
POLAROID CORP52 citations93
US4042760AAug 16, 1977
Flat battery
POLAROID CORP39 citations93
US4096492AJun 20, 1978
Camera with detachable electronic flash unit and exposure control system therefor
POLAROID CORP32 citations92
US4427748AJan 24, 1984
Planar battery comprising a terminal plate having gas venting orifice covered with a layer of gas permeable material
POLAROID CORP25 citations82
US4352874AOct 5, 1982
Method for forming a photosensitive silver halide element
POLAROID CORP21 citations82
US4194061AMar 18, 1980
Compact high voltage battery
POLAROID CORP29 citations82
US4181778AJan 1, 1980
Novel battery anode
POLAROID CORP26 citations82
US4161815AJul 24, 1979
Methods for making electrical cells and batteries
POLAROID CORP28 citations82
US4124742ANov 7, 1978
Electrical cells and batteries and methods and apparatus for making the same
POLAROID CORP28 citations82
US4046457ASep 6, 1977
Polymeric film base carrying fluoropolymer anti-reflection coating
POLAROID CORP20 citations82
US4424326AJan 3, 1984
Copolymeric mordants
POLAROID CORP14 citations74
US4329411AMay 11, 1982
Multicolor diffusion transfer products
POLAROID CORP9 citations74
US4322489AMar 30, 1982
Copolymeric mordants and photographic products and processes utilizing same
POLAROID CORP18 citations74
US4214285AJul 22, 1980
Sound motion picture system having concentrated audio system
POLAROID CORP8 citations74
US4185903AJan 29, 1980
Camera having spatially stabilized photocell
POLAROID CORP8 citations74
US4172640AOct 30, 1979
Movie camera having supplemental exposure
POLAROID CORP13 citations74
US4168166ASep 18, 1979
Photographic processing composition comprising borate
POLAROID CORP11 citations74
US4091400AMay 23, 1978
Multiple battery camera
POLAROID CORP7 citations74
US4047213ASep 6, 1977
Method and apparatus for heating cassette contained film strip during processing
POLAROID CORP11 citations74
US4038077AJul 26, 1977
Process comprising diffusion transfer silver image removal
POLAROID CORP12 citations74
US4007471AFeb 8, 1977
System for mounting photographic accessories on a camera
POLAROID CORP13 citations74
US4007470AFeb 8, 1977
Battery operated camera having a handle thereon formed in part by an external battery
POLAROID CORP11 citations74
US3994008ANov 23, 1976
Camera accessory mount
POLAROID CORP12 citations74
US3990895ANov 9, 1976
Silver halide, color screen elements and their use in forming negative color images and diffusion transfer positive silver images
POLAROID CORP8 citations74
US4298674ANov 3, 1981
Color transfer film and process
POLAROID CORP13 citations70
US4186015AJan 29, 1980
Silver diffusion transfer receiving layer comprising gelatin and polyvinyl alcohol
POLAROID CORP2 citations63
US4184756AJan 22, 1980
Strobe without primary storage capacitor
POLAROID CORP3 citations63
US4184745AJan 22, 1980
Translucent screen
POLAROID CORP3 citations63
US4182561AJan 8, 1980
Fast charging electronic flash device
POLAROID CORP3 citations63
US4179199ADec 18, 1979
Combination motion picture camera and viewing apparatus
POLAROID CORP5 citations63
US4099858AJul 11, 1978
Variable light transmission ophthalmic device
POLAROID CORP4 citations63
US3996050ADec 7, 1976
Whitening agents in color diffusion transfer film units
POLAROID CORP3 citations63
US3990898ANov 9, 1976
In-process color balance adjustment of photographic film using filter dyes
POLAROID CORP4 citations63
US3958261AMay 18, 1976
Reflex camera and viewing device and attachment therefor
POLAROID CORP5 citations62
US4072968AFeb 7, 1978
Self-retracting imbibition chamber for cameras and method of making the same
POLAROID CORP3 citations57
US4291964ASep 29, 1981
Strobe switch with camera control feature
POLAROID CORP1 citations52
US4186013AJan 29, 1980
Silver diffusion transfer receiving layer comprising HEC and gelatin
POLAROID CORP1 citations52
US3976486AAug 24, 1976
Diffusion transfer color products and processes with substituted halide silver halide emulsions
POLAROID CORP1 citations52
US4093696AJun 6, 1978
Method of making a flanged fluted self-coiling sheet
POLAROID CORP1 citations47
US4198152AApr 15, 1980
Method and apparatus for eliminating undesirable blemishes in coating of processing fluid
POLAROID CORP0 citations42