Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6652609 | Fuel oil compositions This invention relates to fuel oil, especially middle distillate fuel oil, compositions comprising middle distillate fuel oil and at least one fuel-soluble or fuel dispersible calcium and/or magnesium salt.... | 11/25/2003 |
| 6548462 | Bisphenyl thiocompounds The invention relates to bisphenyl thiocompounds of formula (I), wherein X1 to X5 independently represent H, Cl, F, OH, SH, R, --OR and --SR, wherein R is an organic radical with 1 to 18 C atoms, which can be an alkyl or alkenyl radi... | 04/15/2003 |
| 6475252 | Stabilizing additive for the prevention of oxidation and peroxide formation A liquid hydrocarbon stabilizer including a hindered phenol, and a peroxide decomposer selected from sulfides having a general formula R4 --S--R5 and phosphine compounds having a general formula PR6 R7 R8 | 11/05/2002 |
| 6475250 | Multifunctional additive for fuel oils The invention relates to additives for improving cold-flow and lubricating properties of fuel oils, comprising A) 5-95% by weight of at least one oil-soluble amphiphile of the formulae ##STR1## in which R1 is an alkyl, alkenyl, hydroxyalkyl or aroma... | 11/05/2002 |
| 6232277 | Lubricating oil compositions There are disclosed fuel compositions containing an additive formed by admixture of (i) at least one ethylene polymer, (ii) the product of the condensation reaction between an aldehyde or ketone or reactive equivalent thereof and at least one compound com... | 05/15/2001 |
| 6096695 | Sulfurized phenolic antioxidant composition, method of preparing same, and petroleum products containing same The present invention relates generally to substantially liquid, chlorine-free, sulfur-bridged phenols useful as antioxidants and more specifically to the preparation of a substantially liquid, chlorine-free, sulfur-bridged, hindered phenol compositions w... | 08/01/2000 |
| 6001786 | Sulfurized phenolic antioxidant composition method of preparing same and petroleum products containing same The present invention relates generally to substantially liquid, chlorine-free, sulfur-bridged phenols useful as antioxidants and more specifically to the preparation of a substantially liquid, chlorine-free, sulfur-bridged, hindered phenol compositions, ... | 12/14/1999 |
| 5919275 | Fuel and lubricant additives, their preparation and fuel or lubricant compositions containing these additives Fuel or lubricant additives based on reaction products of an ethylenically unsaturated poly-1-alkene derived from one or more 1-alkenes of 3 to 24 carbon atoms and from 0 to 50% by weight of ethene, processes for their preparation and fuel or lubricant co... | 07/06/1999 |
| 5885310 | Condensed emulsion fuel material and emulsion fuel In the present invention, a solution of synthetic anionic surface active agents is at first prepared by mixing and homogenizing sodium polyoxyethylenealkylether sulfate and sodium alpha-olefin sulfonate (both are anionic surface active agents). Distillate... | 03/23/1999 |
| 5709718 | Fuel compositions containing a polyether The present invention is directed to the use of sulfur-containing alkoxylate compounds as additives in fuel compositions having a mixture of a major amount of hydrocarbons in the gasoline boiling range and a minor amount of one or more of these compounds.... | 01/20/1998 |
| 5520709 | Hydrocarbyl ethers of sulfur-containing hydroxyl derived aromatics as synthetic lubricant base stocks Alkyl ethers of sulfur containing hydroxyl-derived aromatics have been found to be effective as high-performance synthetic lubricant base stocks with superior catalytic thermal/oxidative stabilities, excellent antiwear and load-carrying properties, as exe... | 05/28/1996 |
| 5509944 | Stabilization of gasoline and gasoline mixtures Gasoline and gasoline mixtures containing unsaturated hydrocarbons are stabilized by the addition thereto of an effective amount of (a) a primary antioxidant of a phenylenediamine, a hindered monophenol, or mixtures thereof, and (b) dimethyl sulfoxide.... | 04/23/1996 |
| 5441544 | Fuel compositions containing substituted poly(oxyalkylene) aromatic ethers A fuel additive having the formula: ##STR1## where A1 is a thioether, a sulfoxide, a sulfone, a sulfonic acid, a sulfonamide, a nitrile, a carboxylic acid or ester, or a carboxamide; R1 and R2 are independently hydrog... | 08/15/1995 |
| 5407451 | Borated hydroxyalkyl sulfides and lubricants containing same Lubricant and liquid fuel compositions contain a novel and unobvious friction reducing or antioxidant additive. The additive is a borated hydroxy/hydrocarbyl sulfide containing 2 hydroxy groups.... | 04/18/1995 |
| 5382266 | Fuel with stability additive and process for stabilizing fuel using an additive The invention relates to inhibiting the degradation of fuel oils by the addition of phosphines and phosphites. Additionally, the invention relates to inhibiting the degradation of fuel oils by drying the fuel oil and adding phosphines and phosphites.... | 01/17/1995 |
| 5336277 | Composition for reducing in-tank fuel pump copper commutator wear and method The resistance of in-tank fuel pump copper commutators to become excessively worn by exposure to petroleum fuels containing at least 10 mg/liter of elemental sulfur is substantially increased by the addition of at least about 5 mg/liter of an organomercap... | 08/09/1994 |
| 5271824 | Methods for controlling fouling deposit formation in a liquid hydrocarbonaceous medium Sulfur containing Mannich reaction product compounds are used as effective antifoulants in liquid hydrocarbonaceous mediums, such as crude and gas oil distillates during processing of such liquids at elevated temperatures.... | 12/21/1993 |
| 5154844 | Lubricant additives and their production A product formed by heating (A) a mixture of a carboxylic acid ester and a fatty acid oxyalkylated amine derivative selected from fatty acid amides, fatty acid esters, fatty acid ester-amides of such oxyalkylated amine, and mixtures thereof with (B) sulfu... | 10/13/1992 |
| 5045089 | Fuel compositions containing phenolic antioxidants Fuel compositions contain a liquid, partially-sulfurized, hindered phenol antioxidant composition prepared by reacting a liquid mixture of phenols which contains at least 50 weight percent of one or more reactive hindered phenols with sulfur monochloride ... | 09/03/1991 |
| 5032144 | Octane enhancers for fuel compositions The octane value of fuels such as gasoline is increased by adding thereto an organic compound containing a tert-butyl group bonded to a carbon or nitrogen atom, which, in turn, is bonded to yet another atom by double or triple bonds.... | 07/16/1991 |
| 5024678 | Process for the prevention or reduction of deposits in carburetors, injection devices and similar devices of engines Process for the prevention of reduction of deposits in carburetors, injection devices or similar devices of engines, which are operated with alcohol fuels comprising 99.9 to 75 Vol.-% methanol, ethanol or a mixture thereof and at least one corrosion inhib... | 06/18/1991 |
| 5004481 | Fuel compositions containing sulfur-bridged phenolic antioxidants Fuel compositions contain a liquid, sulfur-bridged, hindered phenol antioxidant composition prepared by reacting a mixture of hindered phenols with a sulfur chloride in the presence of a polar modifier.... | 04/02/1991 |
| 4981495 | Methods for stabilizing gasoline mixtures Oxidative stability of gasoline mixtures is improved by adding to the gasoline an alkyl 1,2-dihydroquinoline compound, dimer, trimer or polymer thereof. Optionally, a hindered phenol may be conjointly used with the quinoline compound.... | 01/01/1991 |
| 4943303 | Cetane improver A cetane improver for diesel fuels is a sulfur containing compound having at least one electron withdrawing group therein. The electron withdrawing group desirably is a carbonyl group.... | 07/24/1990 |
| 4806130 | Phenolic-containing mannich base reaction products and fuel compositions containing same A product of reaction suitable for use as a lubricant additive made by reacting a preformed Mannich base with a reactive hydrocarbyl amine, thiol or dithiophosphoric acid having at least one reactive hydrogen.... | 02/21/1989 |
| 4740321 | Two-cycle engine oils containing sulfurized alkyl phenols Lubricating oils are described which are useful in two-cycle engines. These oils contain a minor amount of at least one phenolic compound of the general formula: (R)a --AR--(OH)b, or salts thereof, wherein R is a substantially saturated, ... | 04/26/1988 |
| 4416668 | Antistatic agents for organic liquids This invention relates to imides of -olefin-maleic copolymers and to blends of imides of -olefin-maleic copolymer and -olefin-sulfur dioxide copolymers; and to systems, such as hydrocarbon fuels, containing such compositions as antist... | 11/22/1983 |
| 4356002 | Anti-static compositions This invention relates to use of surfactants, such as demulsifiers as illustrated by oxyalkylated phenol-aldehyde resins, as antistatic agents in organic fluids such as hydrocarbon fuels. These surfactants are also capable of synergistically enhancing the... | 10/26/1982 |
| 4330302 | High thermal stability liquid hydrocarbons and methods for producing them Liquid petroleum hydrocarbon blends having improved thermal stability at temperatures of 1000° F. and higher are prepared by removing from the blends dissolved molecular oxygen and maintaining low levels of certain trace impurities in the blends. Trace i... | 05/18/1982 |
| 4307012 | Polymeric alkylbenzenoid hydroquinoid antioxidants Compositions of oxidizable organic materials having stabilizing amounts of polymeric alkylbenzenoid hydroquinoid antioxidants of from about 500 to about 50,000 molecular weight, and polymers which are the reaction products of a hydroquinone compound and a... | 12/22/1981 |
| 4298352 | Diesel fuel comprising methanol and a methanol-soluble polyoxyalkylene compound The present invention provides a diesel fuel based on methanol and containing an additive for improving cetane number comprising a methanol-soluble polyoxyalkylene compound.... | 11/03/1981 |
| 4255159 | Polymer combinations useful in fuel oil to improve cold flow properties A polymeric substance, i.e. poly(isomerized C12 -C50 monoolefin), alone or as the alkylation derivative of an aromatic compound in combination with a lubricating oil pour depressant having pendant alkyl groups of 6 to 32 carbon atoms... | 03/10/1981 |
| 4254020 | Synergistic antioxidant mixtures Compounds of the formula: ##STR1## wherein R is selected from (1) alkyl radicals having 6 to 20 carbon atoms; (2) phenyl radicals which may be substituted by 1 or 2 alkyl groups having 1 to 8 carbon atoms; or (3) aralkyl radicals having 7 to 12 carbo... | 03/03/1981 |
| 4246125 | Lubricating oil and fuel composition Friction of internal combustion engines is reduced by adding a minor amount of a friction-reducing additive to the lubricating oil or fuel used in such engines. The additive is an aliphatic hydrocarbyl sulfinyl or sulfonyl methane. Performance is enhanced... | 01/20/1981 |
| 4225449 | Lubricating oil and fuel compositions Engine friction of internal combustion engines is reduced by adding to the lubricating oil or fuel used in such engine a small friction-reducing amount of an aliphatic hydrocarbylsulfonylalkanol or aliphatic hydrocarbylsulfinylalkanol resulting in improve... | 09/30/1980 |
| 4104180 | Production of overbased metal phenates Producing overbased carbonates by hydrolyzing a metal alkoxyalkoxide in the presence of a phenolic or sulphonic surfactant and carbonating the product of hydrolysis.... | 08/01/1978 |
| 4053428 | Hydrocarbon-substituted methylol phenols Hydroxy aromatic compositions containing (a) a hydroxyl group bonded directly to a carbon of an aromatic nucleus, (b) a hydrocarbon-based substituent of at least about 50 aliphatic carbon atoms bonded directly to a carbon atom of an aromatic nucleus, (c) ... | 10/11/1977 |
| 4029480 | Hydrocarbon fuel compositions containing polysulfone antistatic additives Electrically conductive hydrocarbon fuel compositions containing from 0.01 to 40 ppm of an antistatic polysulfone copolymer additive consisting essentially of units derived from sulfur dioxide, C6.sub.-24 1-alkene and, optionally, an olefin of ... | 06/14/1977 |
| 4025315 | Method of odorizing liquid natural gas Liquid natural gas is odorized with either ethyl or methyl mercaptan by initiallly mixing the odorant with a diluent and then introducing the resultant mixture into the liquid natural gas. It is preferred that the diluent have a freezing point below the b... | 05/24/1977 |
| 4016093 | Metal alkylphenate sulfides of reduced corrosiveness and method of preparing same Neutral and overbased metal alkylphenate sulfides prepared by the steps of (1) reacting an alkylphenol sulfide with minor amounts of a basic material; (2) subjecting the reaction mixture of step (1) to steam sparging, carbonation, air sparging or a combin... | 04/05/1977 |
