Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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 |
| 8177903 | Hydraulic binder with a base of sulfoaluminate clinker and portland clinker The present invention relates to a composition including at least a Portland clinker and a Belite-Calcium-Sulphoaluminate-Ferrite clinker (BCSAF). ... | 05/15/2012 |
| 7445668 | Hydraulic binder having low COemission level The invention relates to a hydraulic binder containing, in percentage by weight: from 1.1 to 9% of tricalcium aluminate from 1.5 to 13.5% of tetracalcium ferroaluminate from 0.5 to 1.5% of dodecaca... | 11/04/2008 |
| 7427321 | Foamed fireproofing composition and method Disclosed are formulations adapted to form a foamed cementitious composition, the foamed cementitious composition itself, a method of forming a hydraulic binder foam, and a method of conveying and applying the resulting foam to a substrate. A pumpable cementitious s... | 09/23/2008 |
| 7390356 | Compositions for high temperature lightweight cementing Compositions for performing cementing operations in a subterranean zone under high temperature conditions have a density of less than about 10.5 pounds per gallon, and include calcium aluminate, water, and a lightweight additive having a specific gravity of less tha... | 06/24/2008 |
| 7381263 | Cement compositions comprising high alumina cement and cement kiln dust The present invention provides cement compositions that comprise water, high alumina cement, a soluble phosphate, and cement kiln dust. The cement compositions optionally may be foamed with a gas. Methods of cementing also are provided that comprise: providing the c... | 06/03/2008 |
| 7351281 | Powdered material and ceramic material manufactured therefrom Powdered material, the binder phase of which mainly consists of a cement-based system, which powdered material has the capacity following saturation with a liquid reacting with the binder phase to hydrate to a chemically bonded ceramic material, preferably for denta... | 04/01/2008 |
| 7337842 | Methods of using cement compositions comprising high alumina cement and cement kiln dust The present invention provides cement compositions that comprise water, high alumina cement, a soluble phosphate, and cement kiln dust. The cement compositions optionally may be foamed with a gas. Methods of cementing also are provided that comprise: providing the c... | 03/04/2008 |
| 7326290 | Liquid setting accelerator for a composition comprising Portland cement The invention relates to a setting accelerator for a composition comprising Portland cement, in the form of a slurry comprising at least one calcium aluminate, 0.5 4%, preferably 0.6 2.3% of an aluminous cement setting inhibitor by weight in relation to the overall ... | 02/05/2008 |
| 7326478 | Cement binder based plate The invention concerns a plate whereof the body comprises a binder containing Portland cement, a sulphoaluminous clinker and a calcium sulphate source: the binder comprises, by weight 30 to 80% of Portland cement, 20 to 70% of sulphoaluminous binder, 5 to 20% of a c... | 02/05/2008 |
| 7303015 | Cementitious compositions containing interground cement clinker and zeolite Methods and compositions for wellbore treating fluids, especially cementitious compositions that include interground cement clinker and zeolite, with and without gypsum. ... | 12/04/2007 |
| 7282093 | Cement compositions with improved mechanical properties and methods of cementing in subterranean formations Foamed cement compositions comprising carbon fibers, a hydraulic cement material, sufficient water to form a slurry, an expanding additive, and optionally, other ingredients, including any suitable additives. ... | 10/16/2007 |
| 7244301 | Heat generating biocompatible ceramic materials An injectable heat generating biocompatible ceramic compositions based on hydraulic calcium aluminate, which can be used for therapeutic treatment in vivo, such as tumour treatment, pain control, vascular treatment, drug activation etc, when curing in situ, and whic... | 07/17/2007 |
| 7241338 | Sprayable, strain-hardening cementitious compositions Sprayable fiber reinforced hydraulically setting mortars exhibit strain hardening behavior, and comprise hydraulically setting cement, less than 4 weight percent matrix interactive fibers, a non-Newtonian additive, a superplasticizer, optionally a viscosity control ... | 07/10/2007 |
| 7219733 | Zeolite compositions for lowering maximum cementing temperature Zeolite compositions having a low maximum setting temperature for use in permafrost and waterwell applications are provided. ... | 05/22/2007 |
| 7208040 | Ettringite binder for dense mortar, comprising calcium sulphates and a mineral compound of calcium aluminates The invention relates to an ettringite binder for dense mortar, comprising calcium sulphates and a calcium aluminate mineral compound, the calcium aluminate mineral compound comprising calcium C and aluminum A oxides, soluble and combined in one or more crystallized... | 04/24/2007 |
| 7169225 | Anhydrite cement compositions and procedures for manufacture The present invention describes improved anhydrite cementitious compositions that control or avoid ettringite formation, as well as procedures for manufacture. These compositions exhibit good compression resistance in early stages, good resistance to abrasion and go... | 01/30/2007 |
| 7150786 | Very early setting ultra-high strength cement Clinkered materials containing high concentrations of {(C,K,N,M)4(A,F,Mn,P,T,S)3(cl,{overscore (S)})} (crystal X), and {(C2S)3(C{overscore (S)})3 Ca(f,cl) 2} or {(C2S)3(C{oversco... | 12/19/2006 |
| 7101614 | Fire-proof material The fire-protection material for constructions made of concrete and prestressed concrete, especially for tunnels, in the form of prefabricated plates or sprayed-on and cured coatings is prepared from hydraulically curing compositions containing aluminous cement, opt... | 09/05/2006 |
| 7070647 | Cement composition A novel cement is alkalescent, capable of solidifying a wide range of soil and applicable to biological environment. The cement composition contains 100 parts by weight of magnesium oxide, 5 to 25% by weight of at least one of silicic acid, alumina and iron oxide, 3... | 07/04/2006 |
| 7033430 | Cement-containing compositions and method of use A settable fluid cementitious composition which is fluid for sufficient time to be suitable for use in a flexible container to provide support in a mine said composition comprises (i) Portland cement in an amount from at least about 8% preferably 10%, (ii) a water s... | 04/25/2006 |
| 7029527 | Quick binder for self compacting concrete, use and application of same A binder for self-compacting concrete includes, in dry weight of the-binder, 70 to 90% of Portland cement, 4 to 16% of calcium aluminate, 4 to 14% of calcium sulphate, an accelerator and a retarder, 0 to 2% of Ca(OH)2 and at least an additive with a water reducer. T... | 04/18/2006 |
| 7025824 | Ceramic material and process for manufacturing A chemically bonded ceramic material based on calcium aluminate hydrate with additives of primarily calcium titanate, but also chemically similar compounds. The material is a biocompatible material for implants, particularly for orthopaedic and dental applications. ... | 04/11/2006 |
| 6997984 | Cement admixture A burned product containing 100 parts by weight of C2S, 10 to 100 parts by weight of C2AS, and 20 parts by weight or less of C3A; a cement admixture prepared by grinding the burned product; and a cement containing 100 parts by weight... | 02/14/2006 |
| 6969424 | Method of producing a chemically bound ceramic product, and product Method for the production of a chemically bound ceramic material by means of reaction between a binding phase of one or more powdered binding agents and a liquid reacting with these binding agents, a quantity of powder containing said binding phase being suspended i... | 11/29/2005 |
| 6964302 | Zeolite-containing cement composition Methods and cement compositions are provided for sealing a subterranean zone penetrated by a wellbore, wherein the cement composition comprises zeolite, cementitious material, and a mixing fluid. ... | 11/15/2005 |
| 6960253 | Method of forming hydraulic cement protective coatings Dry mixes for hydraulic cement coatings for masonry, above ground concrete structures and below ground concrete structures. Hydraulic cement, sand and particular aggregates are combined to form the dry mix, which is combined with a controlled quantity of a water bas... | 11/01/2005 |
| 6926769 | Cementitous compositions and a method of their use A settable composition comprising (i) a cementitious component comprising at least 25% of calcium aluminate of which at least 40% is calcium monoaluminate said cementitious component optionally containing one or more particulate fillers but containing less than 10% ... | 08/09/2005 |
| 6923857 | Non-efflorescing cementitious bodies A non-efflorescing cementitious body is formed from sources of calcium aluminate, calcium silicate, calcium sulphate and reactive silica, these ingredients being present in such relative proportions that, upon hydration, both monosulphate (C3A.CŜ.12H) an... | 08/02/2005 |
| 6907708 | Lightweight wall construction A low or no fines lightweight concrete mixture. The mixture comprises one part by volume of a cementitious binder, 2-10 parts inert coarse aggregate, a cement additive in an amount of 0.05 to 0.3% by weight of the cementitious binder and an effective amount of water... | 06/21/2005 |
| 6846358 | Fire door core The present invention describes an improved building material composition, useful for example as a fire door core and to improved methods of making this composition. The building material of the present invention is prepared from an aqueous mixture of expanded perli... | 01/25/2005 |
| 6818057 | Retarder for calcium sulfoaluminate cements When hydrated, calcium sulfoaluminate cements form ettringite. A retarder which retards this reaction is at least one of phosphono alkyl carboxylic acid and a salt of a phosphono alkyl carboxylic acid. Additionally, the retarder can comprise at least one of a carbox... | 11/16/2004 |
| 6780230 | Foamed fireproofing composition and method Disclosed are formulations adapted to form a foamed cementitious composition, the foamed cementitious composition itself, a method of forming a hydraulic binder foam, and a method of conveying and applying the resulting foam to a substrate. A pumpable cementitious s... | 08/24/2004 |
| 6776839 | Slag cement A slag cement having an improved early strength and containing aluminosilicates, blast furnace slag, clinker and CaSO4, has a content of 70 to 95% by weight of blast furnace slag used in the ground form at >4,500 Blaine (cm2/g) with no more tha... | 08/17/2004 |
| 6758896 | Rapid hardening, ultra-high early strength portland-type cement compositions, novel clinkers and methods for their manufacture which reduce harmful gaseous emissions Clinkered materials containing high concentrations of {(C,K,N,M)4 (A,F,Mn,P,T,S)3 Cl,{overscore (S)})}(crystal X), and {C2S)3(C{overscore (S)})3Ca(f,Cl)2} or C9S3{overscore (S)} | 07/06/2004 |
| 6730162 | Hydraulic binder resulting from mixing a sulfate binder and a binder comprising the mineral compound C4A3{overscore (S)} The present invention relates to a method of preparing a hydraulic binder wherein at least the following two binders are mixed together: a) a first hydraulic binder having as one of its main components the mineral compound C4A3{overscore... | 05/04/2004 |
| 6695910 | Sulfoaluminous clinker without iron and without free lime, its process of preparation and its use in white binders The lightly colored sulfoaluminous clinker contains: more than 55% by weight of calcium sulfoaluminate phase (C4 A3 S), more than 10% by weight of belite phase (C2 S), less than 10% by weight of anhydrite (CS), and contain... | 02/24/2004 |
| 6641658 | Rapid setting cementitious composition A rapid setting cementitious composition useful for making cement boards employs an insoluble form of anhydrous calcium sulfate (anhydrite) to accelerate setting and to permit reducing the amount of high alumina cement usage.... | 11/04/2003 |
| 6537365 | Cement clinker, cement composition, method for producing cement clinker, and method for treatment of waste containing alkali component Cement clinker, characterized in that it comprises Al2 O3 and Fe2 O3 wherein the mass ratio of Al2 O3 /Fe2 O3 is 0.05-0.62, and alkali components and C2 S wherei... | 03/25/2003 |
| 6488764 | Cement composition with polymeric latexes prepared in the presence of amps seed A cement composition comprising a polymeric latex prepared by aqueous emulsion polymerization of a monomeric mixture comprising styrene and butadiene in the presence of a seed polymer prepared by aqueous emulsion polymerization of styrene and a salt of ... | 12/03/2002 |
| 6447597 | Hydrated calcium aluminate based expansive admixture An additive, a mixture incorporating the additive and a method of formulating a mortar incorporating the additive. The additive is based on calcium sulfoaluminate composed of C3 AH6 and CAH10 where C=calcium oxide, A=alumi... | 09/10/2002 |