Inventor

LEWIS DAVID F

US44 patents

⚠️ This page may combine multiple inventors who share the name “LEWIS DAVID F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LEWIS DAVID F

ISP INVESTMENTS INC

Radiation dosimetry method and apparatus

Processless diacetylenic salt films capable of developing a black image

Imageable recording films

Radiation dosimetry method and associated apparatus

Process of directly imaging a thermosensitive polyacetylene salt dyes

Visually imageable polyacetylene salt dyes

Radiation dosage indicator

Method for manufacturing calibrated radiation dosimeter

Method for manufacturing calibrated radiation dosimeter

Radiation dosimetry method and apparatus

Processless diacetylenic salt films capable of developing a black image

Radiation sensitive film including a measuring scale

Process of forming a permanent yellow imaged light modulating film

Permanent yellow imaged light modulating film

Recovery of imageable polyacetylenes from binder containing aqueous dispersions

Radiation dosimeter

Human and scanner readable radiation exposure indicator with reactive barcode

Method for calibrating a radiation detection medium

Lithium salt of polyacetylene as radiation sensitive filaments and preparation and use thereof

Method for removing the effect of light scattering in a digitized image of a light-scattering film

GAF CORP

Memory element for information storage and retrieval system and associated process

Processless multicolor imaging

Processless color imaging and film therefor

Sensitivity of processless recording media

Processless color imaging and film therefor

Sensitivity of processless recording media

Electron beam sensitive resist

Electron beam sensitive mixture resist

Electron beam sensitive resist

GAF CHEMICALS CORP

Recording medium of improved stability

Radiation dosage indicator

Protective coatings for polyacetylenic recording media

Protective coatings for polyacetylenic recording media

Process for sensitizing polyacetylenic films

Coating for increasing sensitivity of a radiation imageable polyacetylenic film

Coating for increasing sensitivity of a radiation imageable polyacetylenic film

ICI PLC

Aromatic ketone

Purification of 4-fluoro-4&#39;-hydroxybenzophenone

COMBUSTION EQUIP ASS

Embrittlement additive for treating organic materials

NAVISTAR INT CORP

Nestable multipiece truck cab roof fairing assembly

MICKE ANDRE

Radiation dosimetry method

YORK RES CORP

Effluent detection methods

LEWIS DAVID F

Radiation dosimetry method

SHIH HSIAO-YI

Nanoparticle dispersion to improve radiation sensitivity

Purification of 4-fluoro-4'-hydroxybenzophenone