Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 4311912 | Neutron accelerator tube having improved target section A neutron accelerator tube having a replenisher section for supplying accelerator gas, in ionization section adjacent the replenisher section adapted to receive the accelerator gas, and a target section adjacent the ionization section. The target section ... | 01/19/1982 |
| 4310765 | Neutron accelerator tube having improved ionization section A neutron accelerator tube having a target section, an ionization section, and a replenisher section for supplying accelerator gas to the ionization section. The ionization section is located between the target and the replenisher section and includes an ... | 01/12/1982 |
| 4298966 | Removal of surface layer anomaly effects In marine seismic exploration, the distortion introduced by an anomalous surface layer is removed from seismograms. The surface layer travel time, obtained for example from fathometer readings, is converted to a model depth section of the anomalous surfac... | 11/03/1981 |
| 4298968 | Digital reflection searching and section plotting The specification describes methods of and apparatus for converting seismic data to migrated seismic depth sections. The apparatus includes a curve follower for following lines of continuity on seismic time sections which represent reflections from partic... | 11/03/1981 |
| 4254295 | Oligomerization of olefins A process for the selective oligomerization of linear and branched chain C2 to C12 olefins is provided. The process comprises contacting of the said olefin in the liquid phase with ZSM-12 at temperatures of 80° F. to 400° F.... | 03/03/1981 |
| 4218306 | Method for catalytic cracking heavy oils A riser cracking operation is described for the production of gasoline and distillate material by the combination of cracking fresh gas oil charged to the base of a riser cracking zone for admixture with freshly regenerated catalyst to form a suspension t... | 08/19/1980 |
| 4128592 | Selective production of para dialkyl benzene A catalytic process is provided for the selective production of the para isomer of the compound: ##STR1## WHERE N IS 1 OR 2 BY CONTACTING A HYDROCARBON PRECURSOR SELECTED FROM THE GROUP CONSISTING OF ETHYLBENZENE AND MIXTURES OF ETHYLBENZENE OR TOLUE... | 12/05/1978 |
| 4127616 | Process for selective production of para dialkyl substituted benzenes A process is provided for the selective production of para dialkyl substituted benzenes wherein the alkyl group contains from 1 to 4 carbon atoms which comprises contacting, under conversion conditions, a hydrocarbon precursor selected from the group cons... | 11/28/1978 |
| 4123417 | Low density polyethylene toughened with ethylene/propylene copolymer The toughness of low density polyethylene film is increased by incorporating therein a small amount of an ethylene-propylene copolymer containing between about 65 and about 85 percent ethylene and having between about 1 percent and about 20 percent crysta... | 10/31/1978 |
| 4107185 | 3-(3,4-Epoxy-4-methylcyclohexyl)butyl esters 3-(3,4-Epoxy-4-methylcyclohexyl)butyl esters form a new class of compounds exhibiting fungicidal activity and plant growth regulant activity. In fungicide tests, the compounds of this invention prove effective against Fusarium oxysporium, Pythium debaryan... | 08/15/1978 |
| 4096124 | Esterification process Terephthalic acid is esterified with an alkylene glycol by heating in a first stage one mole of the acid with at least about 1.2 moles of the glycol and 0.01 to 1.0% based on the weight of the acid of a volatile organic base at a temperature between 240°... | 06/20/1978 |
| 4085156 | Conversion of hydrocarbons Crystalline aluminosilicate zeolites are used as catalysts for various hydrocarbon conversion processes and are particularly useful for conversion of paraffins in the presence of an alkylatable aromatic hydrocarbon such as benzene.... | 04/18/1978 |
| 4076655 | Photodegradable atactic polystyrene compositions Polystyrene compositions, including polystyrene film and foamed polystyrene, containing as a photodegradability enhancing agent an organic carbonyl-containing compound, preferably benzoin; and such compositions containing in addition to said agent, a pro-... | 02/28/1978 |
| 4066731 | Method of making polymeric acrylonitrile films Method of preparing films of acrylonitrile polymer exhibiting very high tensile strength, stiffness, optical clarity, and outstanding gas barrier properties. Method entails extruding a hot, concentrated solution of said polymer in a solvent therefor that ... | 01/03/1978 |
| 4066719 | Selective phosphorylation process A one step process for the preparation of phosphate esters of acidic hydroxy-containing compounds, e.g., phenols, by reacting said compounds with dimethyl disulfide and a trialkyl phosphite.... | 01/03/1978 |
| 4064026 | Polyepoxide ether polyacrylate mixtures Liquid mixtures which are curable by exposure to ultraviolet light when appropriately photosensitized are provided by etherifying a polyepoxide with an at least 25% stoichiometric excess of an hydroxy alkyl ester of an alpha, beta-monoethylenically unsatu... | 12/20/1977 |
| 4043963 | Heat-hardenable aqueous epoxy emulsions containing aminoplast resin A thermally curable aqueous emulsion coating composition is provided in which the discontinuous phase of the emulsion is constituted by liquid particles of a mixture of resinous polyepoxide and 2-hexoxy ethyl ether of an aminoplast resin, dissolved in an ... | 08/23/1977 |
| 4043968 | Process for producing methylolated amide copolymers in concentrated organic solvent solution Monoethylenically unsaturated monomers including an amide monomer are copolymerized in organic solvent solution to provide an amide copolymer solution, and volatile nitrogen-containing materials are removed from the solution without removing more than 15%... | 08/23/1977 |
| 4029620 | Blends of partially neutralized carboxyl functional copolymers and epoxy resins in aqueous emulsion A thermally curable aqueous emulsion coating composition is provided in which liquid particles of resinous polyepoxide are emulsified by means of a nonionic surfactant and there is also present an organic solvent soluble carboxyl functional copolymer whic... | 06/14/1977 |
| 4028294 | Epoxy modified acrylic latices and method of producing same Acrylic latices containing epoxy resins are prepared by emulsion polymerization in which an epoxy resin (polyepoxide) is incorporated into at least one of the monoethylenic monomers, including an epoxy-reactive monomer, and the monomers including the epox... | 06/07/1977 |
| 4011357 | Laminate of biaxially oriented polystyrene film and polystyrene foam A method for the production of laminates comprising oriented thermoplastic film heat bonded to a thermoplastic foam which comprises extrusion of a thermoplastic foam containing a blowing agent which has a plasticizing action upon the foam material and whi... | 03/08/1977 |
| 3988494 | Metallizing coating compositions Metallizing coating compositions having greater sparkle and glitter are formed by including in the coating composition insoluble resin-supported planar reflective metal flakes in an amount of from about 0.0003 to about 0.035% of metal (particularly alumin... | 10/26/1976 |
| 3981941 | Process of making linear alpha-olefins by ethylene oligomerization A process for making linear alpha-olefins by oligomerization of ethylene in the presence of a catalyst comprising titanium halide-organoaluminum halide (e.g., titanium tetrachloride-ethylaluminum dichloride) and a halogenated phosphorus compound (e.g., PC... | 09/21/1976 |
| 3978015 | Three component electrodeposition system Emulsion electrocoat systems are provided in which a non-water dispersible resinous polyol is emulsified in the aqueous phase by means of an hydroxy functional emulsifying agent and an aminoplast resin is also present for cure. Superior corrosion resistan... | 08/31/1976 |
| 3938726 | Nesting insulated hot-or-cold food tray An integral tray structure of expanded substantially rigid plastic foam material, typically polystyrene foam is formed to have a bottom plate surface, an upstanding surrounding, inclined rim and a laterally projecting flange formed on the rim, the flange ... | 02/17/1976 |