| |
 |
|
Class Information
Number: 44/328
Name: Fuel and related compositions > Liquid fuels (excluding fuels that are exclusively mixtures of liquid hydrocarbons) > Organic azide compound, or organic compound having acyclic nitrogen double bonded to acyclic nitrogen (e.g., diazo compounds, etc.) > Azo compound (i.e., each of the nitrogens is single bonded to carbon)
Description: Compositions which contain an azo compound, i.e., a compound wherein carbon is bonded directly to each of two acyclic nitrogens that are double bonded directly to each other.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6800102 |
Emergency fuel |
Oct. 5, 2004 |
| 6558439 |
Emergency fuel |
May. 6, 2003 |
| 6514917 |
Molecular tags for organic solvent systems |
Feb. 4, 2003 |
| 6339145 |
Use of amino azoic dyes as markers of oil distillation products |
Jan. 15, 2002 |
| 6274381 |
Method for invisibly tagging petroleum products using visible dyes |
Aug. 14, 2001 |
| 5827332 |
Azo dyes and a method of making a hydrocarbon using an azo dye |
Oct. 27, 1998 |
| 5759857 |
Leak detection using chemical markers |
Jun. 2, 1998 |
| 5737871 |
Method of preparing and utilizing petroleum fuel markers |
Apr. 14, 1998 |
| 5676708 |
Non-mutagenic dye |
Oct. 14, 1997 |
| 5627077 |
Anilines as markers for mineral oils |
May. 6, 1997 |
| 5490872 |
Acid extractable petroleum fuel markers |
Feb. 13, 1996 |
| 5487770 |
Detection of marked mineral oils and novel azo dyes |
Jan. 30, 1996 |
| 5428137 |
Monoazo liquid dye and solutions thereof |
Jun. 27, 1995 |
| 5266227 |
Oil-soluble phenylazoaniline dyes |
Nov. 30, 1993 |
| 5252106 |
Base extractable petroleum markers |
Oct. 12, 1993 |
| 5156653 |
Silent markers for petroleum, method of tagging, and method of detection |
Oct. 20, 1992 |
| 5147413 |
Methanol fuel containing flame luminosity agent |
Sep. 15, 1992 |
| 4904765 |
Dye mixtures containing an oil-soluble dye and an acid-extractable dye |
Feb. 27, 1990 |
| 4800847 |
Anaerobic operation of an internal combustion engine |
Jan. 31, 1989 |
| 4764290 |
Identification marking of oils |
Aug. 16, 1988 |
| 4723964 |
Cetane number improvement |
Feb. 9, 1988 |
| 4514226 |
Monoazo pyridone colorants |
Apr. 30, 1985 |
| 4479899 |
Red dyeing 2,6-dicyano-2'-sulfonamido-4'-amino-azo-benzenes |
Oct. 30, 1984 |
| 4473376 |
Dye mixtures of azo compounds soluble in organic solvents |
Sep. 25, 1984 |
| 4315756 |
Oil-soluble azo dye with N-substituted .beta.-naphthylamine as coupling component |
Feb. 16, 1982 |
| 4210414 |
Dye mixtures for coloring mineral oil products |
Jul. 1, 1980 |
| 4082501 |
Mixtures of oil-soluble phenyl- and naphthyl-azo-phenyl dyestuffs |
Apr. 4, 1978 |
| 4056367 |
Liquid monoazo-naphthalene dyestuffs, and their use |
Nov. 1, 1977 |
| 4042579 |
Liquid disazo dyestuffs derived from diphenylsulphide |
Aug. 16, 1977 |
| 4011209 |
Organic solvent-soluble azo dyes |
Mar. 8, 1977 |
| 4009008 |
Colored water immiscible organic liquid |
Feb. 22, 1977 |
| 4000985 |
Azo dyes having a high solubility in petroleum fuels |
Jan. 4, 1977 |
| 3964294 |
Technique and system for coding and identifying materials |
Jun. 22, 1976 |
|
|
|
