U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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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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Marcantoni, Paul


Primary examiner statistics: 1082 patents; average approval time: 1080 days
Assistant examiner statistics: 263 patents; average approval time: 612 days

Patents as Assistant Examiner


1              
NumberTitleIssue Date
5506185Ceramic oxyanion emitter
A rare earth oxide matrix (composition of matter) is formed which emits (upon heating) heavy metal oxide anions (oxyanions) into a gas phase, wherein the anions are emitted with high intensity, and wherein longevity of life of the composition of matter is...
04/09/1996
5488018Ultra low thermal expansion, highly thermal shock resistant ceramic
Three families of ceramic compositions having the given formula: $c;1+X Zr4 P6-2X Si2X O24, $c;1+X Zr4-2X Y2X P6 O24 and $c;1+X Zr...
01/30/1996
5476688Process for the preparation of noble metal coated non-noble metal substrates, coated materials produced in accordance therewith and compositions utilizing the coated materials
A multi-coating step immersion coating process for producing a coating of a noble metal on a non-noble metal substrate, wherein the noble metal is of a predetermined amount expressed as a percent of the total weight of coated product, and wherein the non-...
12/19/1995
5462902Process for producing dispersed particulate composite materials
This invention is directed to a process for forming noninterwoven dispersed particulate composite products. In one case a composite multi-layer film product comprises a substantially noninterwoven multi-layer film having a plurality of discrete layers. Th...
10/31/1995
5461012Non-explosive fine metallic powder mixtures for making refractories
A substantially non-explosive mixed powder containing finely divided metallic particles suitable for being incorporated in a refractory mixture, intimately mixed together with inert refractory particles. The refractory particles are present in such partic...
10/24/1995
5460649Fiber-reinforced rubber asphalt composition
The invention provides a fiber-reinforced rubber asphalt concrete composition suitable for paving applications and a method of making the composition. Also provided is a method for converting a conventional asphalt plant to one capable of producing the fi...
10/24/1995
5456751Particulate rubber included concrete compositions
Concrete compositions are provided which contain particulate rubber, preferably recycled rubber from such sources as automobile tires, in amounts between about 0.05 and about 20 percent by weight of the concrete composition. The concrete compositions furt...
10/10/1995
5456752Graded fiber design and concrete reinforced therewith
Graded fiber additives of the present invention provide a mixture a fibers having a plurality of deniers, cross-sections and aspect ratios defining a plurality of different types wherein each type present in the mixture differs from every other type by at...
10/10/1995
5451255Method for improved manufacture of cement in long kilns
The present invention is directed to a method and apparatus for controlling the kiln gas stream in a conventional long wet or dry process cement kiln. A portion of the kiln gas stream can be withdrawn from the rotary kiln vessel at a point upstream, relat...
09/19/1995
5443635Cement compositions
An admixture for cement compositions containing tetrahydroborate, and cement composition containing a tetrahydroborate admixture made of salt borohydride, cement, aggregate and water. Since tetrahydroborate has the expansion effect hardly influenced by te...
08/22/1995
5441657Vibration-isolating composite material
A vibration-isolating composite material consists essentially of powder of an inorganic elastic material and a synthetic polymer mixed thereto. The inorganic elastic material is at least one material selected from the group consisting of NdP5 O...
08/15/1995
5439518Flyash-based compositions
Binder compositions are provided which are principally composed of a lime-containing flyash, and optionally hydratable gypsum, with a small amount of a property improving additive. The compositions are capable of setting when mixed with sufficient water t...
08/08/1995
5437721Method of producing cement clinker
The invention relates to a method of producing cement clinker from fine-grained cement raw material which after preheating and calcining is burnt in a clinker burning zone divided into two stages and is then cooled. Optimum process conditions, particularl...
08/01/1995
5435845Glucoheptonate compositions and methods
Compositions and methods relating to cementitious compositions are provided. The use of a glucoheptonate in the alpha form to prolong the workability of cementitious compositions is provided. The alpha form of glucoheptonate (found to have properties supe...
07/25/1995
5422323Nonhazardous pumpable refractory insulating composition
A granular castable refractory composition is provided which has excellent insulating properties as well as high strength and resistance to oxidation, corrosion or erosion. The refractory insulating composition can be easily transported using a pump, and ...
06/06/1995
5421865Water based silicone coating compositions
Water based silicone coating compositions are provided that offer superior coating properties, durability and resistance to high temperatures and to the effects of corrosive environments. These coating compositions are especially useful for coating the ex...
06/06/1995
5418198Pelletizable gunning composition
A pelletizable gunning composition is provided which exhibits excellent flow characteristics, minimal release of dust, and excellent adhesion and resistance to slag. The gunning composition includes high density magnesium oxide as the primary component, a...
05/23/1995
5417760Method for manufacturing of normal as well as ultra-fine cement
A method is described for manufacturing of normal as well as ultra-fine cement on the basis of cement materials, such as cement clinker, gypsum, slag, limestone, pozzolana, flyash etc. in a plant comprising at least a mill (1), a classifying separator (3)...
05/23/1995
5418199Refractory mix and shapes made therefrom
A refractory mix made comprising magnesite having an MgO content of at least about 95 wt. % and fused spinel-zirconia grain comprising 1 to 40 wt. % zirconia and refractory shapes, particularly brick, made therefrom....
05/23/1995
5413633Concrete
A concrete mortar is formed by mixing together sand, cement, water and a sewage sludge ash. A foam is added to the mortar to form a foamed concrete composition....
05/09/1995
5413634Cement composition
The invention relates to a cement composition containing a shrinkage reducing amount of an alkyl ether derivative of an aliphatic polyhydroxy compound of the formula: Q--[(A)n --OR]x wherein Q is a C3 -C12 aliphatic ...
05/09/1995
5405437All natural, starch-based, water resistant corrugating adhesive
An all natural, starch-based, alkaline corrugating adhesive free of formaldehyde and other crosslinking and water resistance additives and having good water resistant properties comprising an aqueous dispersion of a gelatinized carrier starch and a raw un...
04/11/1995
5403394Self-leveling floor coating material
An additive to cement based materials to render the materials self-leveling upon being mixed with water and applied as a coating upon a floor substrate. The additive comprises a formaldehyde based resin, preferably melamine formaldehyde, and a water reten...
04/04/1995
5401310Additive composition with insulating, impermeabilizing and antishrink properties
New additive composition, in liquid or powder form, for thin slabs, plasters, concretes, prefabricated elements and refrectory elements, with insulating and impermeabilizing properties and with antishrink characteristics, comprising a bonding agent and an...
03/28/1995
5401441Preparation of metal oxide conductive powders
The invention relates to the preparation of conductive metal oxide powders. The method according to the invention comprises the following stages: a) a colloidal aqueous solution of crystalline particles of at least one metal oxide or a composite oxide of sever...
03/28/1995
5399295EMI shielding composites
A composite sheet is disclosed comprising a continuous matrix of a synthetic resinous material having randomly dispersed therein conductive fibers and a particulate, conductive or semi-conductive filler. In addition to providing excellent EMI shielding pr...
03/21/1995
5399535Reticulated ceramic products
A reticulated ceramic product is provided having from about 5 to about 95 percent, preferably from about 10 to about 90, percent of the total porosity attributable to mesopores. Reticulated ceramic products provided include silicon oxide, aluminum oxide, ...
03/21/1995
5397752Production of water resisting, hard, porous metasepiolite
Disclosed is a porous sepiolite having an improved water-resistance and thermal shock resistance obtained by grinding, moisture-conditioning and molding sepiolite, and then calcining said molded sepiolite at a temperature in the range of about 650° C. to...
03/14/1995
5395437Composition of a ceramic mold and its structure
A ceramic mold made up of Al2 O3, a silicon oxide mixture, C.M.C., CaCO3, Fe2 O3 or CoO, and water through a forging process under temperature within 500° C. to 1600° C., having a net of permeation ...
03/07/1995
5395441Revert briquettes for iron making blast furnace
An iron making blast furnace revert briquette composition including finishing mill scale, steelmaking slag, blast furnace dust and a binder wherein the binder includes Portland cement, granulated blast furnace slag cement or mixtures thereof and bentonite...
03/07/1995
5393342Cement composition and method for the preparation thereof
The invention relates to a cement composition which can be hardened hydraulically and which consists of ground cement clinker material, granulated blast furnace slags and comminuted steel slags. The comminution of the steel slags is preferably carried out...
02/28/1995
5393341Method and apparatus for the production of structural foam, particularly cement foam
A method for the production of structural foam from air, water, foaming agent and an aggregate, particularly cement foam, for which cement slurry is blown under high pressure into a mixing chamber and mixed with a foaming agent and the mixture immediately...
02/28/1995
5393330Cationic emulsions of alkylalkoxysilanes
The present invention teaches masonry water repellents comprising aqueous emulsions of alkylalkoxysilanes with either a quaternary ammonium surfactant or a mixture of a quaternary ammonium surfactant with an amino and/or a nonionic surfactant. The alkylal...
02/28/1995
5391226Rubber-crumb-reinforced cement concrete
Rubber-crumb-reinforced cement-concrete structures (such as mortar (0), cement board (30), concrete masonry units (40), and concrete pipe (50)) provide resistance to cracking, increase resistance to acid rain, lower weight, improve shock wave absorption, ...
02/21/1995
5389586Pressureless sintering of whisker reinforced composites
A composite and pressureless sintering process for making whisker-reinforced alumina composites using about 2 to about 7.5 wt. % of a nitride modifier consisting essentially of silicon nitride, aluminum nitride, or mixtures thereof produces a sintered bod...
02/14/1995
5389143Low shrinkage cement composition
The present invention relates to the use of ଱, ଲ-amino alcohols as a cement admixture to inhibit drying shrinkage of resultant cement compositions....
02/14/1995
5389274Activator-frother composition
An activator-frother composition of good selectivity which can be used as additional reagent for the flotation of minerals of finely ground sulfide type and as sole reagent in the treatment of flotation tailings, which consists of about 1% to 10% by weigh...
02/14/1995
5389144Admixture for spray concrete and mortar and a method for the manufacture of spray concrete and mortar using this admixture
Admixtures for spray concrete or mortar which contain silicic acid sol or consist of it, are used for the processing of spray concrete or mortar according to the dry or the wet method. Said admixtures lead to a clear reduction of dust formation and of reb...
02/14/1995
5387282Structural cementitious composition and method of manufacturing the same
A structural article of manufacture having a specific gravity less than about 1.5, composed of a compressed, dry cementitious composition comprising a particulate aggregate substantially free from particles smaller than about minus 80 mesh....
02/07/1995
5382289Inorganic foundry binder systems and their uses
This invention relates to inorganic no-bake foundry binder systems and their uses. The binder systems comprise as separate components: (A) mono-aluminum phosphate in an aqueous solution containing specified phosphoric acids, and (B) magnesium oxide; and c...
01/17/1995
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