Inventor

STEPHEN JOHN F

US52 patents

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

STEPHEN JOHN F

ICI AMERICA INC

Synthesis of 2-substituted-5-methylpyridines from methylcyclobutanecarbonitrile, valeronitrile and pentenonitrile intermediates

Sulphur dehydrogenation process to yield 5-methyl-2-pyridone

Synthesis of 2-substituted-5-methyl-pyridines

High yield process for preparing 4,4&#39;-biphenol and tert-alkylated-alkylbenzenes

High yield process for preparing 4,4&#39;-biphenol and para-alkylbenzenes

Triazine-based light stabilizers for plastics

Melamine-based light stabilizers for plastics

Monomeric and oligomeric glutarate-based light stabilizers for plastics

Synthesis of 2-substituted-5-methyl-pyridines and intermediates therefor

Hindered phenolic compounds derived from hexitans and stabilized compositions

Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine

High yield process for preparing 3,3&#39;,5,5&#39;-tetraalkyl-4,4&#39;-biphenol

3,1 Benzoxazine 2,4-dione

Process for preparing 5-(2-chloro-4-trifluoromethylphenoxy)-2-nitro-N-alkanesulphonyl benzamides from a benzoic acid derivative and intermediates

Process for preparing 5-(2-chloro-4-trifluoromethylphenoxy)-2-nitro-N-alkanesulphonyl benzamides from a toluene derivative and intermediates

Oligomeric polyesters and polyamides containing dipiperidyl triazine groups

Difunctional polyfluoroaromatic derivatives and a process of preparing the same

Tetramethyl piperidyl terminated triazine oligomeric esters and amides

Difunctional polyfluoroaromatic derivatives and a process of preparing the same

Tetraalkyl piperidylated stabilizers for plastics

Polyfluoroaromatic nitriles

Malonate-based light stabilizers for plastics

Malonate-based light stabilizers for plastics

Tartrate-based light stabilizers for plastics

Oligomeric malonate-based light stabilizers for plastics

Bispiperidone precursor of 2-substituted-5-methyl-pyridines

Synthesis of 2-substituted-5-methyl-pyridines and intermediates therefor

Preparation of 2-halo-5-methylpyridines from 4-methyl-4-pentene derivatives

2-Piperidones

Noncrystalline tris(4-hydroxy-2-methyl-5-tert. butylphenyl) butane

Hindered phenolic oxamide compounds and stabilized compositions

Hindered phenolic compounds derived from hexides and stabilized compositions

Hindered dydroxybenzyl hexaalkyldiphenyl-methanes and stabilized compositions

Hindered hydroxyphenylalkanoates of ethoxylated bisphenol A and stabilized compositions

N-2,2-dimethyl-2-(2-hydroxy-alkylphenyl) heterocycles and stabilized compositions

N-2,2-dimethyl-2-(2-hydroxy-alkylphenyl) heterocycles and stabilized compositions

Pentene derivatives

Preparation of 2-halo-5-methylpyridines from 4-methyl-4-pentene derivatives

CIBA GEIGY CORP

Containing hindered phenolic norbornane-2,3-dicarboximides stabilized compositions

Pyrrolidine dicarboxylic acids and esters and stabilized compositions

Metal salts of N,N-disubstituted β-alanines and stabilized compositions

Acylated derivatives of 2,6-dihydroxy-9-azabicyclo[3.3.1]nonane and stabilized compositions

Hindered phenolic norbornane-2,3-dicarboximides and stabilized compositions

Hindered phenolic derivatives of norbornane thioalcohols

Pyromellitic dimiides of 3,5-dialkyl-4-hydroxyphenylsubstituted amines

Hindered phenol derivatives of 9-thiabicyclononanes and stabilized compositions

UNION CARBIDE CORP

Esters of 3-hydroxyindone compounds as herbicides and miticides

Esters of 3-hydroxyindone compounds

CYTEC IND INC

Mono- and bis-benzotriazolyldihydroxybiaryl UV absorbers

KRUSE WALTER M

Etherification process for hexitols and anhydrohexitols

High yield process for preparing 4,4'-biphenol and tert-alkylated-alkylbenzenes

High yield process for preparing 4,4'-biphenol and para-alkylbenzenes

High yield process for preparing 3,3',5,5'-tetraalkyl-4,4'-biphenol