Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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 |
| 7745635 | Energetic ionic salts The invention provides a) a method for making improved ionic halide salts, e.g., 1-methyl-4-amino-1,2,4-triazolium iodide and b) a method for making energetic ionic salts, e.g., 1-methyl-4-amino-1,2,4-triazolium nitrate, in high yield and purity from triazolium prec... | 06/29/2010 |
| 4767564 | Chemical composition for the destruction of microfilm products A chemical solution for effecting the rapid destruction of microfilm products comprising a mixture of 4-butyrolactone, methyl Cellosolve acetate and aqueous sodium hypochlorite.... | 08/30/1988 |
| 4705639 | Ferrous and sulfide treatment of electroplating wastewater The present invention involves a treatment technique for drastically reducing the volume of hazardous sludge generated by the chemical reduction of chromium contaminants and the precipitation of heavy metal contaminants from contaminated electroplating wa... | 11/10/1987 |
| 4661176 | Process for improving the quality of epitaxial silicon films grown on insulating substrates utilizing oxygen ion conductor substrates The present invention accomplishes the thermal oxidation of the silicon side of the interface present in epitaxial silicon films grown on yttria-stabilized cubic zirconia, /, to form a dual-layer structure of /amorphous SiO2 /... | 04/28/1987 |
| 4615811 | Vacuum pump oil recovery process A novel treatment method for recovering halogenated vacuum pump oils such as chlorotrifluoroethylene, from contaminated filter papers. The process utilizes a trichlorotrifluoroethane (TCTFE) solvent and water mixture to extract the oil followed by vacuum ... | 10/07/1986 |
| 4602979 | Technique for the growth of compositionally ungraded single crystals of solid solutions This invention describes a modified method of growing high purity, compositionally ungraded, single crystals of multicomponent solid solutions by the Czochralski, Kyropoulos, Bridgman or other related melt growth technique. In the method of this invention... | 07/29/1986 |
| 4594430 | Synthesis of geminal dinitro compounds Geminal dinitro compounds are prepared by reacting an organic nitro compound having a replaceable hydrogen on the carbon to which the nitro group is attached with a source of nitrite ions in the presence of an oxidizing agent and a catalytic amount of an ... | 06/10/1986 |
| 4560779 | Preparation and polymerization of oxether-1 The present invention provides a method for synthesizing a novel oxether-1 monomer by a two step reaction scheme which involves effecting a reaction between 3-methyl-3-hydroxymethyl oxetane and 1,1,1-trinitroethane to form an intermediate reaction product... | 12/24/1985 |
| 4559217 | Method for vacuum baking indium in-situ A method for producing highly pure indium for subsequent utilization as a reaction component in the synthesis of polycrystalline, indium phosphide which includes the step of heating raw indium under vacuum in an open ended quartz ampoule to a temperature ... | 12/17/1985 |
| 4559175 | Halo-substituted diphospha-s-triazines and their derivatives This invention concerns itself with a novel class of dihalodiphospha-s-triazines as exemplified by the compound 1,3-bis[phenylchloro-phospha]-5-perfluoro-n-heptyl-2,4,6-triazines as well as their thio and azido substituted derivatives.... | 12/17/1985 |
| 4557869 | Dihalo-monophospha-s-triazines and their derivatives This invention concerns itself with a class of novel dihalo-substituted monophospha-s-triazines as exemplified by the compounds 1-dichlorophospha-3,5-bis(perfluoro-n-heptyl)-2,4,6-triazine and 1-dichlorophospha-3,5-bis[C3 F7 OCF(CF | 12/10/1985 |
| 4558451 | Tubular singlet delta oxygen generator A generating device for producing a laser energizing gas in the singlet delta, electronic state comprising a vacuum chamber; a tubular reaction chamber positioned within said vacuum chamber, said reaction chamber having a closed end and an oppositely disp... | 12/10/1985 |
| 4539292 | Immunoassay technique for specific immunoglobulin E Using monoclonal mouse anti-human IgE antibodies, the microtiter solid phase radioimmunoassay (MSPRIA) and the enzyme-linked immunoabsorbent assay (EILSA) were modified to quantitatively measure honeybee venom (HBV) and perennial rye grass (PRG) specific ... | 09/03/1985 |
| 4508662 | Pentafluorotelluriumoxide fluorocarbons Pentafluorotellurium hypofluorite and pentafluorotellurium hypochlorite have been reacted with olefinic reactants to form fluorocarbon adducts containing the oxypentafluorotellurium group (TeF5 O--).... | 04/02/1985 |
| 4504329 | Process for the epitaxial deposition of III-V compounds utilizing a binary alloy as the metallic source The present invention provides for the deposition of group III-V ternary epitaxial films onto the surfaces of suitable semiconductor substrates. The deposition is accomplished by a vapor phase epitaxy-hydride technique using a group III binary alloy as a ... | 03/12/1985 |
| 4499258 | Polyaromatic ether-sulfone-keytones with fluoro-substituted-p-cyclophane units as cross-linking sites Polyaromatic ether-sulfone-ketones containing fluoro-substituted-p-cyclophane units were prepared from isophthaloyl chloride, terephthaloyl chloride, diphenyl ether, diphenoxydiphenyl sulfone and a small amount of either 1,1, 2,2, 9,9, 10,10-octafluoro ... | 02/12/1985 |
| 4499395 | Cut angles for quartz crystal resonators The present invention concerns itself with crystallographically doubly rotated quartz orientations vibrating in the transverse c-mode with turnover temperatures which are considerably less sensitive to angular misorientation than the comparable well known... | 02/12/1985 |
| 4488914 | Process for the epitaxial deposition of III-V compounds utilizing a continuous in-situ hydrogen chloride etch A process for depositing an epitaxial film of a III-V compound onto the surface of a crystallographically compatible substrate which includes contacting said substrate with a vaporous mixture of a group III element and a group V element to effect the depo... | 12/18/1984 |
| 4488311 | Optically pumped iodine monofluoride laser This invention comprises an optically pumped iodine monofluoride laser operating on the B3 π(0+).fwdarw.X2 Σ+ system. Ground state IF was produced by the reaction between I2 and F2 in an ... | 12/11/1984 |
| 4487640 | Method for the preparation of epitaxial films of mercury cadmium telluride A method for depositing a (Hg,Cd)Te film onto a CdTe substrate by using two separate vaporizeable sources of reactant materials each maintained at separate and distinct temperatures followed by the step of mixing both of each sources with a hydrogen halid... | 12/11/1984 |
| 4482410 | Plasticizer system for propellant compositions This invention discloses the synthesis of a polytetramethyleneglycol pivalate polyether and its use as a plasticizer for propellant compositions.... | 11/13/1984 |
| 4482408 | Plasticizer system for propellant compositions The present invention concerns itself with the synthesis of N-octyldecylbutyl urethane and its use as an internal plasticizer for solid propellants.... | 11/13/1984 |
| 4482407 | Plasticizer system for propellant compositions The present invention concerns itself with the synthesis of N-octyl(2-ethylhexyl)urethane and its use as an internal plasticizer for isocyanate-cured solid propellant compositions.... | 11/13/1984 |
| 4482404 | Azido nitramino ether containing solid propellants This invention involves the synthesis of a novel family of azido nitramino ethers and their utilization as energetic plasticizers for advanced solid propellant compositions. They include the novel compounds bis (2-azidoethoxymethyl) nitramine and 1,1... | 11/13/1984 |
| 4482411 | Plasticizer system for propellant compositions The present invention discloses the preparation of a novel family of polytetramethyleneglycol monooctaneoate ester-ethers and their use as internal plasticizers for propellant compositions.... | 11/13/1984 |
| 4482409 | Plasticizer system for propellant compositions This invention discloses the synthesis of a dilinoleate ester plasticizer and its use as a plasticizer for propellant compositions.... | 11/13/1984 |
| 4476062 | Pseudo-p-1,1,2,2,9,9,10,10-octofluoro[2,2]-p-cyclophane bis-acid chloride Polyaromatic ether-sulfone-ketones containing fluoro-substituted-p-cyclophane units were prepared from isophthaloyl chloride, terephthaloyl chloride, diphenyl ether, diphenoxydiphenyl sulfone and a small amount of either 1,1,2,2,9,9,10,10-octafluoro[... | 10/09/1984 |
| 4476337 | Method for introducing fluorine into an aromatic ring A process for introducing a fluorine atom into an aromatic hydrocarbon by effecting a substitution reaction between an aromatic hydrocarbon and an NF4+ cation containing salt.... | 10/09/1984 |
| 4472356 | Gas contamination detection device A device for detecting the degree of contamination of a gas filter system by a contaminating gas. The device comprises a filter chamber having a pair of grids positioned therewithin and coated with a semiconductive polymer whole bulk conductivity changes ... | 09/18/1984 |
| 4462975 | Synthesis of pentafluorotellurium hypofluorite The present invention concerns itself with a method for synthesizing hypofluorite compounds by utilizing fluorine fluorosulfate as a fluorinating agent and to a novel pentafluorotellurium hypofluorite compound prepared thereby.... | 07/31/1984 |
| 4461756 | Singlet delta oxygen generator A method and apparatus for producing molecular oxygen in the excited singlet delta oxygen electronic state for use as an excited species reactant in a high energy, continuous-wave, chemically pumped laser. In this invention, small amounts of sodium hydrox... | 07/24/1984 |
| 4460514 | Method for the preparation of poly (carbonyl fluoride) oligomers An improved method for synthesizing poly (carbonyl fluoride) oligomers by using bis(trifluoromethyl)trioxide as a reaction initiator in the photo-oxidation of F-3 methylbutene-1.... | 07/17/1984 |
| 4440687 | Azido nitramino ethers This invention involves the synthesis of a novel family of azido nitramino ethers and their utilization as energetic plasticizers for advanced solid propellant compositions. They include the novel compounds bis (2-azidoethoxymethyl) nitramine and 1,1... | 04/03/1984 |
| 4432817 | Propellant containing an azidonitrocarbamate plasticizer This invention involves the synthesis of a novel family of azido nitrocarbamates and their utilization as energetic liquid plasticizers for advanced solid propellant compositions. The novel family of plasticizers is represented specifically by the novel c... | 02/21/1984 |
| 4432814 | Azido esters This invention involves the synthesis of a novel family of azido esters and their utilization as energetic plasticizers for advanced solid propellant compositions. This family includes as an illustrative member, the novel compound 6-azidohexyl-6-azidohexa... | 02/21/1984 |
| 4432815 | Azido fluorodinitro amines This invention involves the synthesis of a novel family of azido fluorodinitro amines and their utilization as energetic plasticizers for advanced solid propellant compositions.... | 02/21/1984 |
| 4423260 | Method for introducing fluorine into an aromatic ring A process for introducing a fluorine atom into an aromatic hydrocarbon by effecting a substitution reaction between an aromatic hydrocarbon and an NF4+ cation containing salt.... | 12/27/1983 |
| 4419285 | Azido fluorodinitro amines This invention involves the synthesis of a novel family of azido fluorodinitro amines and their utilization as energetic plasticizers for advanced solid propellant compositions.... | 12/06/1983 |
| 4419286 | Azido esters This invention involves the synthesis of a novel family of azido esters and their utilization as energetic plasticizers for advanced solid propellant compositions. This family includes as an illustrative member, the novel compound 6-azidohexyl-6-azidohexa... | 12/06/1983 |
| 4411827 | Coprecipitation process for thermionic cathode type materials A method for fabricating a homogenous and uniformly sized mixture of alkaline earth metal carbonates found to be especially useful as an emission type coating material for application to a cathodic element of a thermionic vacuum tube.... | 10/25/1983 |
