In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7331400 | Fire resistant and smoke suppressing coatings A surface coating includes fire retarding and smoke suppressing constituents dispersed throughout an essentially non-toxic, water-based adhesive binder. The coating comprises a mixture of chemical compounds where each constituent falls into one of six functional gro... | 02/19/2008 |
| 7214332 | Flame-resistant-thermoset coating A thermosetting-resin-based coating that is capable of forming a substantially flame-resistant barrier upon being exposed to heat. The coating includes a thermoset resin, an acid catalyst having a pKa value of less than 2, a filler selected from glass, mica, talc, p... | 05/08/2007 |
| 7211293 | Methods, systems and compositions for fire retarding substrates A closed-loop system and process is used for applying fire retardant chemicals to fibers. Fibers are preferably positioned in a vessel such as a dye machine which circulates the fire retardant chemicals. After absorption of the fire retardant composition, non-absorb... | 05/01/2007 |
| 7144527 | Fire-protection coating The invention relates to a flame retardant combination comprising, as component A, a phosphinate of the formula (I) and/or a diphosphinate of the formula (II) and/or polymers of these where R1 | 12/05/2006 |
| 7011724 | Textile products having flame retardant properties and methods of manufacture A textile product with enhanced flame and/or smoke retardant properties and a method of forming the same is disclosed. The textile product is comprised of a textile material having a primary layer or backing with intumescent particles coated, sprayed, sprinkled, or ... | 03/14/2006 |
| 6957695 | Heat exchanger housing and seals A housing for a heat exchange apparatus including a fluid passageway partially defined by a baffle plate having an extended portion. The heat exchange apparatus further includes an array of fluid conduits extending through the fluid passageway. The housing includes ... | 10/25/2005 |
| 6911070 | Flame inhibiting and retarding chemical process and system for general use on multiple solid surfaces A process for an aqueous liquid flame retardant and fire quenching and extinguishing product for various and diverse materials with wide ranging chemical affinity. Preparations are safe, non-toxic, for professional and household use, in a stable colloidal dispersion... | 06/28/2005 |
| 6652633 | Fire retardant Improved fire retardants that include guanylurea phosphate [(H2 N--C(NH)--NH--C(O)--NH2).H3 PO4 ] (GUP) and boric acid, materials such as wood and composite wood products that include these fire retardants, and ... | 11/25/2003 |
| 6541068 | Method for the flame-retardant processing of textile materials A process is proposed for the fireproofing treatment of textile materials by impregnating them initially with a melamine-formaldehyde resin or organosilicon substances, and then with a solution of a complex compound of the ammonia salt of amidoalkylphosph... | 04/01/2003 |
| 6248160 | Flame retardant for mesh sheets and flameproof mesh sheet A flame retardant for flameproof mesh sheets which does not generate halogen gas at the time of combustion and a flameproof mesh sheet comprising the same. Also disclosed is a flame retardant for mesh sheets comprising 1.5 to 15 wt % of red phosphorus and... | 06/19/2001 |
| 6146557 | Fire resistant resin composition Provided is a fire resistant resin composition comprising 100 parts by weight of a thermoplastic resin (I) such as a polyolefin base resin, 10 to 300 parts by weight of at least one flame retardant (II) selected from the group consisting of a nitrogen bas... | 11/14/2000 |
| 6102995 | High performance intumescent system for imparting heat/flame resistance to thermally unstable substrates An intumescent composition comprising the dried product of a composition containing as essential components (1) the reaction product of aluminum oxide or aluminum hydroxide hydrate and an organic amine phosphate or a salt thereof, and (2) expandable graph... | 08/15/2000 |
| 6042639 | Fire retarding composition and a method for impregnation of a combustible material Fire retarding and smoke inhibiting aqueous composition and a method for a one-step impregnation of aqueous-absorbable--and normally inflammable materials, such as wood, paper and textiles, said composition comprising ammoniumphosphates, phosphoric acid, ... | 03/28/2000 |
| 6000189 | Fire-resistant rear-ventilated cladding Rear-ventilated cladding is provided with intumescent compositions in the region of the rear ventilation.... | 12/14/1999 |
| 5891226 | Salts of phosphonous acids and use thereof as flame retardants in plastics Salts of phosphonous acids are useful as flame retardants in plastics. Preferred salts are calcium or aluminum salts of phenylphosphonous acid and of methanephosphonous acid. Plastic molding materials rendered flame-retardant in this way are useful for ma... | 04/06/1999 |
| 5749948 | Expandable, flame-retardant coating compositions The expandable, flame-retardant coating compositions comprise at least from 4 to 25% by weight of a film-forming binder, from 10 to 40% by weight of an ammonium polyphosphate, from 8 to 40% by weight of at least one substance which is carbonized under the effect of... | 05/12/1998 |
| 5709821 | Gel formers having reduced gelling time and forming gels with improved melting resistance Gel formers comprising acid aluminum phosphate and a reaction product of boric acid and an alkanolamine, and further comprising alkali metal compounds in the aluminum: alkali metal ratio of 1:1.3-2.5 require short gelling times, and form gels having impro... | 01/20/1998 |
| 5688429 | Flame-retardant and fabric-softening treatment of textile materials A one-pack composition conferring flame-retardant and fabric-softening properties on fabrics comprises a THP+ salt, an organic nitrogen compound (eg urea) and a hydroxyl-reactive organic compound having 12 or more carbon atoms. Preferred examp... | 11/18/1997 |
| 5593485 | Extinguishing compositions and process for producing the same A fire proof or extinguishing compositions consisting of diammonium hydrogen phosphate, disodium hydrogen phosphate, dicyandiamide, sodium borate decahydrate and water, is characterized in that it is non-toxic, non-polluting and free of chlorofluorocarbon... | 01/14/1997 |
| 5578666 | Flame retardant composition A flame retardant composition comprising an effective synergistic flame retardant combination of a melamine phosphate and tris(neopentyl) nitrilotris(methylphosphonate) suitable for use as an additive to a normally flammable polymer composition, especiall... | 11/26/1996 |
| 5573706 | Gel formers and gels, their preparation and use Gel formers and gels contain a) acidic aluminium phosphates, optionally in the form of reaction products with 0.01 to 4 mol of alkanolamines per mol of aluminium phosphate, and b) reaction products of boric acid with alkanolamines, a) and b) being present in a... | 11/12/1996 |
| 5425901 | Fireproofing gels, processes for their preparation and their use, in particular for fireproof glazing Fireproofing gels based on amine salts of acid phosphates are characterized in that they comprise an aluminum component, a phosphorus component, an amine component and if appropriate water in proportions such that, at 5° to 30° C. for more than 24 hours... | 06/20/1995 |
| 5276066 | Halogen-free cyclic phosphorus-containing flame retardant compounds Certain (1,3,2-dioxaphosohorinanemethan) amine compounds, which are useful as halogen-free flame retardant compounds, are disclosed. The compounds are particularly useful in polyurethane compositions.... | 01/04/1994 |
| 5185214 | One step process for imparting decay resistance and fire retardancy to wood products A one step process for imparting both decay resistance and fire retardancy to wood and cellulosic materials by impregnating the products with a treatment solution composed of a water soluble mixture of a tertiary and quaternary ammonium preservative compo... | 02/09/1993 |
| 5159074 | Aminomethanephosphonic acid aryl esters, a process for their production and their use Aminomethanephosphonic acid aryl esters of the formula ##STR1## in which R1 is an aromatic radical and R2, R3, R4, R5 and R6 independently of one another represent hydrogen atoms, ##ST... | 10/27/1992 |
| 5151127 | Weather resistant, fire retardant preservative and protective compositions for the treatment of wood and cellulose products Fire retardation and wood preservation compositions having inorganic salts encapsulated by a water-based acrylic resin solution. The salts are carried by water into the wood or cellulose product to be treated. After the water evaporates, the inorganic sal... | 09/29/1992 |
| 5064710 | Fire retardant composition A fire retardant composition comprises an aqueous solution of at least one ammonium phosphate, an alkyl acid phosphate having from two to four carbon atoms, and a glycol having from two to four carbon atoms. The fire retardant composition is effective for... | 11/12/1991 |
| 5053147 | Methods and compositions for extinguishing fires Fires, particularly fires of flammable liquids, are extinguished by applying to the burning surface an extinguishing composition containing particles of a thermoplastic polymer, suitably a rubber. The polymer particles are arranged in association with a s... | 10/01/1991 |
| 5049187 | Aqueous solution for forming a fire-retardant protective coating An aqueous solution useful as a coating composition to form a fire-retardant protective overcoat on a surface requiring such protection, such as one or both surfaces of a photographic element, comprises (1) a water-soluble film-forming cross-linkable copo... | 09/17/1991 |
| 5034057 | Photographic element having a fire-retardant protective overcoat A photographic element is provided on one or both surfaces thereof with a fire-retardant protective overcoat comprising (1) a water-soluble film-forming copolymer of methyl inyl ether and maleic anhydride cross-linked by a water-soluble polyhydric alcohol... | 07/23/1991 |
| 4983326 | Fire retardant concentrates and methods for preparation thereof The present invention is directed to an aqueous concentrate adapted to be diluted with water and used in fire control. The concentrate exhibits a viscosity of less than about 2000 centipoise and containing between about 0.75% and about 6% by weight a thic... | 01/08/1991 |
| 4971728 | Method for the preparation of aqueous fire retarding concentrates The present invention is directed to an aqueous concentrate adapted to be diluted with water and used in fire control. The concentrate exhibits a viscosity of less than about 2000 centipoise and containing between about 0.75% and about 6% by weight a thic... | 11/20/1990 |
| 4908160 | Fire retardant composition An anhydrous flame retardant composition comprising diammonium hydrogen phosphate, disodium hydrogen phosphate, ammonium dihydrogen phosphate, ammonium hydrogen phosphate, sodium hydrogen carbonate and a surfactant. The composition can be made up into an ... | 03/13/1990 |
| 4879066 | Fire retardant additives and their uses A composition comprising two or more frits of different melting temperatures and optionally one or more ceramic material or basalt or intumescent substance is provided that may be added to a variety of materials to provides or enhance fire resistance. Suc... | 11/07/1989 |
| 4839099 | Fire-retardant for woody materials A fire retardent for woody materials, which is an aqueous solution comprising 100 parts by weight as solids content of a water-soluble 3-(dialkylphosphonopropionamide) represented by the following general formula ##STR1## wherein each of R1... | 06/13/1989 |
| 4839065 | Fire retardant concentrates and methods for preparation thereof The present invention is directed to an aqueous concentrate adapted to be diluted with water and used in fire control. The concentrate exhibits a viscosity of less than about 2000 centipoise and containing between about 0.75% and about 6% by weight a thic... | 06/13/1989 |
| 4806620 | Polymeric compositions having flame retardant properties An aqueous, resinous solution of a curable, polymeric reaction product, the cured polymeric flame resistant coating and methods for producing them are provided. The solution is formed by direct reaction or prepolymer reaction and chain extension reaction ... | 02/21/1989 |
| 4725382 | Fire retardant composition A fire retardant composition that utilizes pH control to lower corrosion is provided. The fire retardant composition contains B2 O3, P2 O5 and NH3. Also provided is a fire retarded material of low cor... | 02/16/1988 |
| 4721583 | Fire-resistant polycarbonates A fire-resistant polycarbonate composition comprising a polycarbonate and for each one thousand parts by weight thereof from about 0.1 to 10 parts by weight of a salt of the formula: ##STR1## in which R is a C1 to C6 alkyl radic... | 01/26/1988 |
| 4663239 | Fire retardant composition A fire retardant composition in a stable liquid form comprises the reaction product of an aqueous aldehyde, preferably formaldehyde, solution, at least one alcohol solvent, an alkanolamine, an organic catalyst, ammonium hydroxide, urea and an aqueous phos... | 05/05/1987 |