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| Number | Title | Issue Date |
| 4863506 | Methods for regulating the growth of plants and growth regulant compositions L-(d)-lactic acid, the dextrorotatory isomer of lactic acid, is an effective plant growth regulant which exhibits classical growth regulant activity at very low concentrations and dosage rates. It can be employed to beneficially stimulate the growth of al... | 09/05/1989 |
| 4855349 | Mastic and caulking compositions and composite articles Permanently flexible and non-tacky coating mastic and caulking compositions contain one or more polymers having a Tg of about -50° C. to about -10° C. and pendant functional groups attached to the polymer backbone of the formula: ##STR1#... | 08/08/1989 |
| 4851199 | Methods for recovering vanadium from phosphoric acid and vanadium sources Vanadium is recovered from vanadium-containing phosphoric acid solutions by adjusting the pH so as to convert the dissolved vanadium to a simple vanadate compound which is insoluble in the phosphoric acid solution at the adjusted pH and separating the res... | 07/25/1989 |
| 4844164 | Process and composition for treating underground formations penetrated by a well borehole An aqueous fluid for treating underground, carbon dioxide-containing formations penetrated by casing regions of a wellbore, prior to the cementing of casings into the wellbore, comprises: (i) water, (ii) an agent which substantially increases (preferably ... | 07/04/1989 |
| 4839088 | Polysaccharide compositions Polysaccharides are at least partially hydrolyzed by contact with a composition containing urea, sulfuric acid, and water in which the urea/sulfuric acid molar ratio is less than 2. Such proportions of urea and sulfuric acid assure the presence of the mon... | 06/13/1989 |
| 4834788 | Plant seed compositions and methods for treating plant seeds Plant seeds are beneficiated by contacting them with an aqueous solution of a urea-sulfuric acid component containing the monourea adduct of sulfuric acid. The molar ratio of urea to sulfuric acid in the aqueous solution is preferably within the range of ... | 05/30/1989 |
| 4831056 | Pesticidal compositions and methods for controlling pests Pests are controlled by applying to the location of and/or to the path traversed by the pests a composition comprising urea and sulfuric acid in which the urea H2 SO4 molar ratio is less than 2. Novel compositions useful in such meth... | 05/16/1989 |
| 4822624 | Preservative for harvested crops The growth of microorganisms in stored crops, and especially in animal feedstuffs, is inhibited by the application of a preservative composition which comprises ammonia, urease enzyme urea and/or urea polymers in a fluid medium. Urea polymers which are us... | 04/18/1989 |
| 4818269 | Cellulosic compositions and methods for treating cellulosic materials Cellulosic materials are physically and/or chemically modified by contact with a combination of urea and sulfuric acid in which at least 25 percent of the sulfuric acid is present as the monourea adduct of sulfuric acid. The cellulosic materials thus trea... | 04/04/1989 |
| 4808000 | Positioning device and method An apparatus for establishing a desired position of a tool, including a means for moving the tool along a particular axis, a laser for providing a beam of coherent light along an axis which intersects the axes of tool movement and which is located so that... | 02/28/1989 |
| 4801511 | Battery cell electrolyte Electrolytic cells, suitable for depositing a metal on or removing a metal from a substrate, are provided which comprise an anode and cathode, sulfuric acid, an a chalcogen-containing compound soluble in said bath and having the empirical formula ##S... | 01/31/1989 |
| 4800092 | Method for producing a solid animal feed supplement An acidic molasses-based liquid animal feed supplement stock including calcium and mangesium, so that the calcium to magnesium weight ratio is between about 1.5 and 3, and, optionally, non-protein nitrogen, is hardened into a solid form by the addition of... | 01/24/1989 |
| 4787453 | Permeability stabilization in subterranean formations containing particulate matter A method for treating a fines-containing formation to prevent the migration and/or swelling of particulate matter. The method comprises injecting into the formation water and/or steam which contains at least one water-soluble organosilicon compound. Suita... | 11/29/1988 |
| 4787450 | Gas lift process for restoring flow in depleted geothermal reservoirs A method is provided whereby continuous injection of lift gas into a producing geothermal well, preferably from a liquid-dominated reservoir, increases production flow of geothermal fluids from the well by initiating a steam distillation effect within the... | 11/29/1988 |
| 4783492 | Continuous permeability reduction in subterranean reservoirs A composition for selectively reducing the permeability of the higher permeability zones of a subterranean reservoir having heterogeneous permeability, such permeability reduction extending continuously from nearby the well as far into the reservoir as is... | 11/08/1988 |
| 4775489 | Self-breaking foamed oil in water emulsion for stimulation of wells blocked by paraffinic deposits A self-breaking, foamed, oil-in-water emulsion contains a water-immiscible organic solvent for paraffins and asphaltenes, an aqueous nonformation-damaging component, an inert gas, and surface active agents selected to promote a stable foamed emulsion desp... | 10/04/1988 |
| 4773504 | Rolling safety trolley A rolling safety trolley for traversing the upper circumference of an open tank having a top ledge comprises: a frame having an upright member and at least one cross member, and preferably a plurality of cross members, an outer wall roller affixed to the ... | 09/27/1988 |
| 4762540 | Noise suppression and particle separation apparatus for high pressure gaseous fluid flows Noise suppression and particle separation apparatus for flows of high pressure, high velocity, particle-laden, gaseous fluid, such as geothermal steam, comprises a gaseous fluid conduit that has axially installed around its discharge end a larger diameter... | 08/09/1988 |
| 4759983 | Pressure sensitive adhesives and adhesive articles Normally tacky, pressure sensitive adhesive compositions comprise one or more polymers containing pendant functional groups attached to a polymer backbone and having the formula: ##STR1## in which R1 is a divalent organic radical at least ... | 07/26/1988 |
| 4756888 | Recovery of silver-containing scales from aqueous media A method is disclosed for controlling the deposition of metal-containing scales, such as iron silicate scale, from a hot, aqueous, geothermal brine or the like, without substantial corrosion of brine handling equipment. The brine is contacted with (1) an ... | 07/12/1988 |
| 4755469 | Oil tracing method A method for tagging an oil so that subsequently it may be identified as to source by incorporating into the oil as a tracer material an oil-soluble or oil-dispersible Group VIB, Group VIIB or lanthanum series rare earth metal salt of a fatty acid. The so... | 07/05/1988 |
| 4755265 | Processes for the deposition or removal of metals Methods for depositing metals on or removing metals from substrates are provided which involve the use of electrolytic cells comprising an anode and cathode, sulfuric acid, and a chalcogen-containing compound soluble in said bath and having the empirical ... | 07/05/1988 |
| 4754438 | Geophone testing apparatus The invention is an apparatus for obtaining a step function response signal from a geophone, comprising: (1) a controllable source of current; (2) a means for producing a switching pulse; (3) an electronic connecting means for applying current from the so... | 06/28/1988 |
| 4752452 | Aqueous ammonia process and mixing apparatus therefor The invention is a process and apparatus useful for preparing an aqueous ammonia solution at a temperature below the boiling point thereof by single stage dilution of anhydrous ammonia with water. In the invention, an anhydrous ammonia fluid comprising am... | 06/21/1988 |
| 4746222 | Mixing and cooling apparatus for hot, particulate matter Apparatus for the mixing and cooling of hot, particulate matter, such as hot, retorted oil shale, comprises a plurality of enclosed, vertically spaced apart, converging vessels through which the material to be mixed and cooled is flowed. At least the lowe... | 05/24/1988 |
| 4743669 | Acid catalyzed organic reactions Certain urea-sulfuric acid components, comprised of urea and sulfuric acid in a 1/4 to 7/4 molar ratio, contain a monourea adduct of sulfuric acid, which is catalytically active for promoting organic chemical reactions. The invention provides methods empl... | 05/10/1988 |
| 4726144 | Fumigation methods and compositions The invention is directed to the fumigation of soils, enclosed spaces, agricultural products and other commodities, etc., using compositions which decompose to form carbon disulfide and certain other biocidal materials. Such fumigation can be used to cont... | 02/23/1988 |
| 4701555 | Methods for removing biuret from urea by adsorption The biuret content of biuret-containing urea is reduced by contacting a solution or melt of biuret-containing urea with a polar adsorbent under conditions sufficient to remove at least a portion of biuret from the urea. The resulting biuret-containing ads... | 10/20/1987 |