Haloalkyl hydroxy-aromatic condensation products as fuel additiv

Halogenated hydrocarbon containing fuel supplement and/or...

Halogenated substituted fulvenes useful as fuel antiknock additi

Hand pressing device for making fuel briquettes from soaked pape

Heating element

Heating unit and fertilizer preparation

Heavy fuel-oil compositions having an improved stability under s

Heavy oil emulsion fuel and process for production thereof

Heavy oil emulsion fuel composition

Heavy oils having improved properties and an additive therefor

Heterocyclic compounds containing nitrogen as a fuel...

Heterocyclic compounds useful as additives for lubricant and fue

Heterocyclic nitrogen compound Mannich base derivatives of amino

Heterocyclic nitrogen compound mannich base derivatives of polyo

Hexacoordinated transition metal compounds and fuel compositions

Hexacoordinated transition metal compounds containing at least o

Hexahydropyrimidines as fuel additives

High BTU fuel element

High carbon content liquid fuels

High conversion TAME and MTBE production process