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 |
| 4380886 | Method of promoting water transport through soil A method of promoting the transport of water through medium and coarse grained soils comprising the step of applying to the medium or coarse grained soil a soil amendment composition at a level of less than 20 parts per million parts by weight of dry soil... | 04/26/1983 |
| 4356020 | Fertilizer compositions containing alkylene oxide adduct anticaking agents This invention relates to fertilizer compositions containing alkylene oxide anticaking agents. More particularly, this invention relates to a method of decreasing the caking during storage in a hygroscopic salt or fertilizer which normally cakes on storag... | 10/26/1982 |
| 4348218 | Fertilizer briquette adapted to be hammered into the ground A composite granular mixture of source materials, providing an NPK Fertilizer content of desired value, say 16-8-8, and a plastic binder composed of granular uncured urea-formaldehyde resin are compressed into a briquette of good "green strength" and then... | 09/07/1982 |
| 4345931 | Gelated fertilizers, process for their manufacture and their use in plant fertilization Water-soluble fertilizer pastes containing 58 to 88% by weight of water-soluble plant nutrients, 0 to 5% by weight of water-soluble micronutrients, 4 to 12% by weight of polyglycol ethers having at least 9 ethylene oxide units and/or water-soluble polygly... | 08/24/1982 |
| 4343699 | Convertible dual container storage system A dual tank storage system is provided having a first generally cylindrical upstanding tank adapted to be positioned either adjacent to or within a second tank of larger diameter. The tanks are in fluid connection and are useful in systems requiring the s... | 08/10/1982 |
| 4340414 | Plant hibernation A plant nutrient solution has been found for bringing about hibernation of plants consisting of approximately 3 grams of calcium nitrate and 2 grams of potassium nitrate per gallon of water, said solution containing no more than trace quantities of phosph... | 07/20/1982 |
| 4340485 | Countercurrent liquid-solid contacting apparatus A countercurrent liquid-solid contacting apparatus comprises a liquid purifying column for substantially purifying a liquid by passing the liquid upwardly through a bed of purifying material and a regenerating column for regenerating the purifying materia... | 07/20/1982 |
| 4339265 | Sewage treatment method and apparatus A method and apparatus for treating sewage and converting the sewage into organic fertilizer which utilizes equipment for converting the solid material of the sewage into patties and a mixing apparatus for mixing the patties with bulking agents. The mixtu... | 07/13/1982 |
| 4337594 | Mushroom casing composition and process In the cultivation of mushrooms from an underlying bed containing mushroom spores, novel compositions and processes are provided for a casing layer which is placed over the compost layer containing spawning mycelium. A hydrophilic, thermosetting prepolyme... | 07/06/1982 |
| 4337079 | Low polyphosphate suspension fertilizers from wet-process acid An energy efficient process and apparatus is described that allows production of concentrated polyphosphate containing ammonium phosphate suspension fertilizers that can be stored and handled at temperatures well below 0° F. Ammoniation of the merchant-g... | 06/29/1982 |
| 4337077 | Agricultural inoculant composition An agricultural inoculant composition used as a seed, plant, foilar spray, field spray, and compost inoculant. The agricultural inoculant composition includes both a peat humus base composition having predetermined quantities of peat moss, leather meal, g... | 06/29/1982 |
| 4337078 | Substrate for cultivation of agricultural crops and rooting of green cuttings in greenhouses and in open air A substrate for the cultivation of plants in greenhouses or outdoors comprises klinoptylolite zeolite, vermiculite and peat in specified particle size ranges and relationships, with enhanced nitrogen and phosphorus content, to provide a highly versatile a... | 06/29/1982 |
| 4336052 | Method of using corn syrup for reducing phytotoxicity of urea applied to plants for foliar fertilization Urea damage to the foliage of plants, particularly legumes such as soybeans, is reduced by application of corn syrup together with urea to the plant leaves.... | 06/22/1982 |
| 4336053 | Fertilizer solutions stabilized with inorganic acids A stable liquid fertilizer solution containing nitrogen, phosphorus, iron and optionally sulfur is prepared by mixing a water-soluble iron compound with ammonium polyphosphate and water to produce an iron phosphate slurry having a molar ratio of polyphosp... | 06/22/1982 |
| 4334905 | Agrochemical agents and their use Azulmic acids, stabilized by condensation with carbonyl compounds, containing from 0.5 to 55 percent by weight of ionic groups of the formula ##STR1## in which R represents hydrogen, ammonium, one equivalent of a protonated or quaternized organic nit... | 06/15/1982 |
| 4335000 | Chromate ion removal from aqueous solutions Chromate ions present in aqueous solutions, e.g. cooling tower blowdown water or liquors obtained from the electrolysis of aqueous sodium chloride solutions, are substantially completely removed by passing the solution through an intimate mixture of an an... | 06/15/1982 |
| 4334907 | Phosphoric acid ammoniation process to produce liquid fertilizers Phosphoric acid and ammonia are reacted together with additions of water when necessary in a reaction vessel to form a molten entrained stream reaction mixture to which a water quench is added to produce an ammonium polyphosphate liquid fertilizer.... | 06/15/1982 |
| 4333757 | Mushroom-growing medium A cellulosic medium for growing mushrooms is disclosed. A liquid mixture containing sources of soluble carbon and nitrogen is fermented and mixed with cellulosic material. The so-treated cellulosic material is held at a temperature and for a time sufficie... | 06/08/1982 |
| 4333832 | Rotating solution separation system Salt water and other solutions are accelerated in a rotating structure and applied to a cannister containing reverse osmosis membrane material. The desalinated water is removed after passing through the large surface area concentration of membrane materia... | 06/08/1982 |
| 4332685 | Method and apparatus for treating water Water softened by ion exchange is pumped through a reverse osmosis material. The water treated by reverse osmosis may be stored under pressure and the reverse osmosis waste stream is recycled through the ion exchanger. The stored volume of water treated b... | 06/01/1982 |
| 4332609 | Fertilizing plants with polyborates A liquid fertilizer comprises a polyborate compound. The polyborate compound is formed by reacting a boric acid compound with an alkanolamine or an aliphatic polyamine.... | 06/01/1982 |
| 4330319 | Manufacture of urea sulfur fertilizer A process is disclosed for the production of a urea sulfur fertilizer by mixing urea and molten sulfur to obtain a molten mixture and solidifying the molten mixture to obtain a homogeneous, solid, particulate urea sulfur fertilizer wherein the sulfur has ... | 05/18/1982 |
| 4329491 | Method and product for treating soil to suppress the nitrification of ammonium nitrogen therein The present invention relates to crop culture and is particularly concerned with practices for conserving soil nitrogen and for supplying the soil nitrogen requirements for plant nutrition. These practices involve the employment, as active agent, of a nov... | 05/11/1982 |
| 4326874 | Process and apparatus for preparing compostable material A method and apparatus for preparing compost material on a storage surface in which a layer of material is produced from strips which are placed with their longitudinal edges adjacent one another and wherein at least one additional layer of compost materi... | 04/27/1982 |
| 4324663 | Method and apparatus for regulating haemodialysis conditions This invention relates to the regulation of the conditions of haemodialysis by ultrafiltration of the blood wherein ultrafiltration conditions are regulated automatically as a function of the difference between the actual weight of the patient and a prede... | 04/13/1982 |
| 4324577 | Method and apparatus for beneficiating phosphate ores Method and apparatus for producing high grade phosphate rock from low grades, slime or tailings by subjecting the low grade rock, slime or tailings to a calcination treatment at a temperature within the range from 1000° F. to 1600° F., and preferably fr... | 04/13/1982 |
| 4323455 | Compact type fluid treatment apparatus The apparatus according to this invention is provided with a stack assembly composed of two kinds of cells disposed in such order of arrangement that the adjacent cells are different in kind from each other. A first cell includes a first fluid distributio... | 04/06/1982 |
| 4322361 | Method of preparing a manganese chelate having improved properties Ethylenediaminetetraacetic acid and the trisodium salt of N-hydroxyethylethylenediaminetriacetic acid are mixed in water at mole ratios of 80/20 to 52/48, respectively, and a manganese compound is dissolved therein with heating. The pH is adjusted to 7 an... | 03/30/1982 |
| 4321079 | Aqueous sulfur dispersion having reduced corrosive activity toward ferrous metal A dispersion of up to about 70 weight percent elemental sulfur in an aqueous ammonia solution of at least one metal compound selected from the group consisting of soluble zinc and magnesium compounds has reduced corrosive activity toward ferrous metal. Th... | 03/23/1982 |
| 4321078 | Slow release fertilizer composition A slow release fertilizer composition providing to a plant a controlled amount of plant primary nutrients and micronutrients over a prolonged period of time is described. The solubility and concentration of each of the plant nutrients is determined by the... | 03/23/1982 |
| 4321077 | Method of preparation of multicomponent fertilizers The subject of the invention is the method of preparation of multicomponent fertilizers based upon the decomposition process of mineral phosphate material by ammonium sulphate and sulphuric acid. This method has application in chemical industry. The inven... | 03/23/1982 |
| 4318729 | Stable liquid N-P-K fertilizer composition and method of use A liquid fertilizer composition which is storable for 6-8 months is prepared from an aqueous methylol urea containing solution and dibasic potassium phosphate. The methylol urea containing solution has a nitrogen content of approximately 15-35% by weight.... | 03/09/1982 |
| 4317721 | Inside flow filter Continuously operating inside flow filter for placement within a pressure tank, comprising one or several filter cartridges filled with a filtering mass and an alkalizing mass placed around a sludge cylinder fitted upon a bottom grating, and the pipe syst... | 03/02/1982 |
| 4315762 | Use of aluminum tris(-O-ethyl phosphonate) as an ammonium nitrification compound Disclosed is the use of aluminum tris(-O-ethyl phosphonate) as an ammonium nitrification inhibitor. This compound can be spread upon or mixed with the soil or applied with nitrogen-containing fertilizers to inhibit ammonium nitrification in the soil.... | 02/16/1982 |
| 4315763 | High analysis liquid fertilizers High analysis liquid fertilizers comprising the reaction product of urea and phosphoric acid having a pH between 1.5 and 4 and optionally containing the reaction product of urea and sulfuric acid, various trace elements including those normally found as c... | 02/16/1982 |
| 4314905 | Columnar fine mesh magnetized ion exchange resin system A method and apparatus for water softening using less than approximately 20 micron diameter fine mesh magnetized ion exchange particles in columnar operation. The particles are formed by encapsulating a core of magnetic material in ion exchange resin. The... | 02/09/1982 |
| 4313752 | 2,2-Dimethylvaleric acid for growth enhancement of sugarcane Treatment of sugarcane with 2,2-Dimethylvaleric acid enhances growth.... | 02/02/1982 |
| 4311510 | Method for producing high-grade fertilizer A method for producing a fertilizer and decay promoting substance by subjecting grape marc to aerobic decay so that in a first phase, the sugar content is converted to alcohol and microbial fermentation produces organic acids. During the first phase, the ... | 01/19/1982 |
| 4311511 | Method for producing high-grade fertilizer A method for producing a fertilizer and decay promoting substance by subjecting grape marc to aerobic decay so that in a first phase, the sugar content is converted to alcohol and bacterial fermentation produces organic acids. During the first phase, the ... | 01/19/1982 |
| 4310416 | Plate type fluid treatment apparatus A small-sized plate type fluid treatment apparatus for filtration and separation of fluid, transferring substances between fluids through membranes or passing specific substances contained in the fluid through membranes. Said apparatus consists of a plura... | 01/12/1982 |