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 |
| 4417990 | Mixed metal salts/sulfurized phenate compositions and lubricants and functional fluids containing them A composition comprising (A) a mixed metal salt of (A)(I) at least one acid of formula I ##STR1## wherein R' and R2 are the same or different and each of R' and R2 is a hydrocarbon-based radical, and (A)(II) at least one aliphat... | 11/29/1983 |
| 4308154 | Mixed metal salts and lubricants and functional fluids containing them Mixed metal salts (especially zinc salts) of dialkylphosphorodithioic acids and carboxylic acids, the ratio of equivalents of the dialkylphosphorodithioic to the carboxylic acid being between about 0.5:1 and about 4.5:1, are useful in lubricants and funct... | 12/29/1981 |
| 4293430 | Sulfurized metallic dithiophosphates and their use as additives for lubricating oils Metallic dithiophosphates obtained by the sulfurization of a composition containing: (A) from about 100 to 20 percent by weight of a metallic dithiophosphate of the formula: ##STR1## in which R1 is an alkenyl or unsaturated cycloaliphatic... | 10/06/1981 |
| 4288335 | Novel metallic dithiophosphates and their use as additives for lubricating oils Metallic dithiophosphates of the formula: ##STR1## in which R1 is an alkyl, alkenyl, cycloaliphatic, aryl, or heterocyclic radical, R2 and R3 are alkyl radicals, preferably C1 -C4 radicals, and m... | 09/08/1981 |
| 4259192 | Lubricating oil compositions containing polyether dithiophosphates Oil-soluble dithiophosphate esters of a dithiophosphoric acid and a poly(oxyalkylene) alcohol, and salts thereof, are provided for lubricating oil compositions.... | 03/31/1981 |
| 4241155 | Method for stabilizing organic substrates including photographic dye images against light A method for stabilizing an organic substrate to light the substrate having an absorption maximum in the range of about 300 nm-about 800 nm, which comprises making at least one complex represented by following general formula (I) coexist with the substrat... | 12/23/1980 |
| 4215067 | Process for the preparation of zinc salts of dihydrocarbyldithiophosphoric acids Processes for the manufacture of substantially haze free zinc salts of dihydrocarbyldithiophosphoric acid comprising the addition of an effective amount of a surface active agent or surfactant at or prior to the neutralization of a dihydrocarbyldithiophos... | 07/29/1980 |
| 4212751 | Dithiophosphoric acids and salts thereof and oil compositions containing the salts Novel esters of dithiophosphoric acid and secondary alcohols having two beta quaternary carbon atoms, and salts of such esters suitable as additives in oil compositions are disclosed.... | 07/15/1980 |
| 4177199 | Silver salts of phosphanilic acid Monosilver phosphanilate and disilver phosphanilate were prepared and found to be potent antibacterial agents, especially against strains of Pseudomonas, suitable for use in the topical therapy of burns.... | 12/04/1979 |
| 4113634 | Metal aryl dithiophosphates and their manufacture Disclosed are a process for manufacturing metal diaryl dithiophosphates, certain metal diaryl dithiophosphates, and lubricating oil compositions containing said metal diaryl dithiophosphates. The process for the manufacture of metal diaryl dithiophosphate... | 09/12/1978 |
| 4104291 | Metal dithiophosphates and their manufacture Disclosed are a process for the manufacture of metal dithiophosphates especially the neutralization of dithiophosphoric acids, and also the product made by such process. The process for the continuous neutralization of dithiophosphoric acid with metal bas... | 08/01/1978 |
| 4097509 | Double-ylide metal complexes Double-ylide metal complexes are made. To this end, one or more bis-[methyl-(diorganyl)-phosphoranylidene]-methanes of the general formula in which R1 and R2 each stand independently of one another for an alkyl radical having 1 to 4 carbo... | 06/27/1978 |
| 4079146 | Metal salts of mixed dithiocarbamic acids This invention is concerned with metal salts of mixed dithiocarbamic acids, the process for their preparation and their biological activity. In particular, these salts are useful as broad spectrum fungicidal agents.... | 03/14/1978 |
| 4044032 | Metal dialkyl dithiophosphates Novel metal dialkyldithiophosphates prepared from oxalkylated long, straight-chain alcohols, acids and mercaptans and their incorporation in lubricating oils to enhance the lubricity and other properties thereof; and a method for operation of an automatic... | 08/23/1977 |
| 3989732 | Photosensitive copper (I) complexes A novel copper (I) complex having the formula Cu[P(OR)3 ]n BH3 CN wherein R is lower alkyl and n is an integer from 1 to 3 is employed as an actinic radiation sensitive component in an imaging process comprising imagewise expos... | 11/02/1976 |
| 3947565 | Anti-arthritic compositions comprising s-heterocyclic derivatives of phosphine or phosphite gold mercaptides and methods of producing anti-arthritic activity S-Heterocyclic derivatives of phosphine or phosphite gold mercaptides having anti-arthritic activity are disclosed.... | 03/30/1976 |
| 3944495 | Metal dialkyldithiophosphates Novel metal dialkyldithiophosphates prepared from oxalkylated long, straight-chain alcohols, acids and mercaptans and their incorporation in lubricating oils to enhance the lubricity and other properties thereof; and a method for operation of an automatic... | 03/16/1976 |