...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7976591 | Fuel composition and its use A fuel composition is provided that contains a major amount of a mixture of hydrocarbons in the gasoline boiling range and a minor amount of a certain aniline additive compound. Use of such aniline additive compound in a combustion engine is also provided. ... | 07/12/2011 |
| 7202292 | Colored polymeric resin composition with 1,8-diaminoanthraquinone derivative, article made therefrom, and method for making the same In one embodiment, a colored polymeric resin composition, comprises: a polymeric resin; and a 1,8-diaminoanthraquinone derivative having a purity of greater than or equal to about 90 wt % and having a Formula (VIII): | 04/10/2007 |
| 5865861 | Fuel compositions containing polyamines of poly(oxyalkylene) aromatic A polyamine-containing poly(oxyalkylene) aromatic ester having the formula: ##STR1## or a fuel-soluble salt thereof; where R1 is a polyamine moiety having about 2 to about 12 amine nitrogen atoms and about 2 to about 40 carbon atoms, where... | 02/02/1999 |
| 5849048 | Substituted biphenyl poly (oxyalkylene) ethers and fuel compositions containing the same Substituted biphenyl poly(oxyalkylene) ethers having the formula: ##STR1## wherein R1 is hydrogen or hydroxyl; R2 is hydroxyl, cyano, nitro, amino, aminomethyl, N-alkylamino or N-alkylaminomethyl wherein the alkyl group contains... | 12/15/1998 |
| 5827333 | Substituted biphenyl ethers and fuel compositions containing the same Substituted biphenyl polyalkyl ethers having the formula: ##STR1## wherein R1 is hydrogen or hydroxyl; R2 is hydroxyl, cyano, nitro, amino, aminomethyl, N-alkylamino or N-alkylaminomethyl wherein the alkyl group contains 1 to ab... | 10/27/1998 |
| 5639718 | Multifunctional viscosity modifiers for lubricating oil compositions with improved dispersancy and antioxidancy derived from adducts of quinone An oil-soluble lubricating oil and fuel additive, useful as a multifunctional viscosity modifier comprising succinimide and other amine-containing polymers reacted with a quinone or substituted quinone adducts. Suitable polymers are those containing prima... | 06/17/1997 |
| 5637119 | Substituted aromatic polyalkyl ethers and fuel compositions containing the same Substituted aromatic polyalkyl ethers having the formula: ##STR1## wherein R1 is a polyalkyl group having an average molecular weight of about 450 to about 5,000; A is nitro, amino, cyano, aminomethyl, N-alkylamino or N-alkylaminomethyl wh... | 06/10/1997 |
| 5576274 | Fuel and lubricant additives derived from dihydroxy-aromatic compounds The present invention relates to a novel process for the production of fuel and lubricant additives useful as dispersants and multifunctional viscosity modifiers wherein a dihydroxyaromatic compound is alkylated with an olefinic polymer and then aminated ... | 11/19/1996 |
| 5492546 | Fuel compositions The present invention is directed to the use of diphenylamine alkoxylate compounds as additives in fuel compositions. The invention is also directed to the use of these compounds for decreasing intake valve deposits.... | 02/20/1996 |
| 5413615 | Polyalkyl hydroxy and amino aromatic carbamates and fuel compositions containing the same Polyalkyl hydroxy and amino aromatic carbamates having the formula: ##STR1## or a fuel-soluble salt thereof; wherein X is hydroxy or amino; R1 and R2 are independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, lower ... | 05/09/1995 |
| 5399277 | Fuel and lubricant additives derived from dihydroxyaromatic compounds The present invention relates to a novel process for the production of fuel and lubricant additives useful as dispersants and multifunctional viscosity modifiers wherein a dihydroxyaromatic compound is alkylated with an olefinic polymer and then aminated ... | 03/21/1995 |
| 5312461 | Dihydrocarbyl substituted phenylenediamine-derived phenolic products as antioxidants A lubricating oil, grease or fuel composition contains an antioxidant amount of a Mannich base reaction product of an N-hydrocarbyl-substituted-phenylenediamine or an N,N'-dihydrocarbyl-substituted phenylenediamine such as N,N'-di-sec-butyl-para-phen... | 05/17/1994 |
| 5205840 | Markers for petroleum, method of tagging, and method of detection Liquid petroleum products are tagged with a marker which is a compound or mixture of compounds having the formula: ##STR1## wherein R1 is C1 -C6 alkyl, and R2 and R3 are nothing or --O--(C1 | 04/27/1993 |
| 4735631 | Colored petroleum markers Tagging compounds (which function as both dyes and markers) having the following structures: ##STR1## wherein x is an integer between 0 and 3 inclusive, y is an integer between 1 and 3 inclusive, z is 0 or 1, and R is a straight or branched chain ... | 04/05/1988 |
| 4392866 | Etheramine corrosion inhibitor for alcohols Alcohols may be inhibited against corrosion by addition thereto of an ether amine ##STR1## typically C12 H25 OCH2 CH2 CH2 NHCH2 CH2 CH2 NH2.... | 07/12/1983 |
| 4386939 | Reaction products of certain heterocycles with aminophenols Aminophenols and analogous aromatic compounds, especially those containing a hydrocarbon-based substituent preferably having about 10 to about 750 aliphatic carbon atoms, react with 3- or 4-membered ring heterocyclic compounds, preferably epoxides, to for... | 06/07/1983 |