Inventor

WELTER THOMAS R

US49 patents

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

WELTER THOMAS R

EASTMAN KODAK CO

Photographic elements and film units containing imidomethyl blocked photographic reagents

Heterocycloalkyl-substituted naphthalene-based tetracarboxylic diimide compounds as N-type semiconductor materials for thin film transistors

N-type semiconductor materials in thin film transistors and electronic devices

Chiral compounds and compositions containing the same

Imido methyl blocked photographic dyes and dye releasing compounds

Process for preparing enantiomerically pure 1,1′-spirobiindane-6,6′-diol derivatives

Liquid-crystal compositions comprising chiral compounds

Heat development of elements containing methine-dye releasing couplers

Photographic elements containing release compounds

Photographic elements containing development accelerators and release compounds that release development inhibitors

Photographic elements containing development accelerators and release compounds that release development inhibitors

Photoalignment of liquid crystals using poly(vinylstilbazolium) polymers

Aligned liquid crystal layer containing azolium salts and process for increasing the tilt

Photographic element containing yellow dye-forming photographic coupler

Photographic element containing yellow coupler

Photographic element comprising yellow dye-forming photographic coupler

Photographic element containing cylacetamido yellow dye-forming couplers

Photographic element containing acetamido DIR coupler

Methine-dye releasing couplers for heat image separation systems

Dye releasing couplers for heat image separation systems

Herbicidal thioparaconic acid derivatives

Herbicidal thioparaconic acid derivatives

Configurationally controlled N,N&#39;-Dicycloalkyl-substituted naphthalene-based tetracarboxylic diimide compounds as N-type semiconductor materials for thin film transistors

Heteropyrene-based semiconductor materials for electronic devices and methods of making the same

Poly (alkylene oxide)s in photographic elements

2-substituted-1-hydroxyindoles

1-hydroxyindole fungicides

14-crown-4-ether derivatives

Intermediates for making 14-crown-4-ether derivatives

Dry analytical element for lithium assay

4-substituted isoxazole herbicides

Fungicidal, 2-acylacetanilide derivatives

Photographic element containing imidazolonoylacentanilide coupler

Photographic element containing improved acylacetamido yellow dye-forming coupler

Heat image separation with phenolic thermal solvents and dye releasing couplers

Photographic element containing a novel cyan dye forming coupler and process for its use

Photographic element containing a novel cyan dye forming coupler and process for its use

Photographic element containing a novel cyan dye forming coupler and process for its use

Dye releasing couplers for color diffusion transfer elements with dye barrier layers

Certain 2,3-dihydobenzofuran-3-yl acetic acids and their method of preparation

Yellow coupler, photographic element, and process

Image modification in color reversal photographic elements

Fungicidal 2-acylacetanilide derivatives

IND TECH RES INST

Photochemically active chiral compounds and compositions containing the same

Photochemically active chiral compounds and compositions containing the same

Temperature compensating chiral dopants

ALLEN SCOTT D

Polymer compositions and methods

EASTMAN KODAK CIMPANY

Contrast chiral nematic liquid crystal displays

NITTO DENKO CORP

Aligned liquid crystal layer containing Lewis acids and process for increasing the tilt

Configurationally controlled N,N'-Dicycloalkyl-substituted naphthalene-based tetracarboxylic diimide compounds as N-type semiconductor materials for thin film transistors