Bizarre Patents
A method for inducing cats to exercise consists of directing a beam of invisible light produced by a hand-held laser apparatus onto the floor or wall.
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 |
| 4963150 | Implantable prosthetic devices An improved implantable prosthetic device for use in the human body which comprises a flexible container having therein a soft gel or fluid filling and an outer plastic covering bonded or otherwise connected to the flexible container. The external surface... | 10/16/1990 |
| 4953562 | Method of urine specimen identification The invention includes a method of, and substances for use in the method of, identifying the source of a urine sample to be collected for biochemical analysis including administering to a person or animal whose urine is to be tested a formulation containi... | 09/04/1990 |
| 4937066 | Zinc containing oral compositions An ammonium or alkali metal zinc tartrate used in oral compositions such as mouthwashes, gingival and subgingival irrigating solutions, dentifrices, and the like as well as in other preparations for treating oral lesions.... | 06/26/1990 |
| 4910259 | Bone cement An acrylate based bone cement with well balanced low exotherm, low residual monomer, and high strength properties formulated from (1) a liquid component containing at least three different monomeric (meth)acrylates, e.g. a C1 -C2 alk... | 03/20/1990 |
| 4820303 | Implantable prosthetic devices An improved implantable prosthetic device for use in the human body which comprises a flexible container having therein a soft gel or fluid filling and an outer plastic covering bonded or otherwise connected to the flexible container. The external surface... | 04/11/1989 |
| 4761206 | Method for producing large reinforced seamless casings and the product obtained therefrom A method of forming a high tensile strength, reinforced, seamless, large cylindrical casing wherein a metal such as nickel is electrodeposited in conjunction with reinforcing materials such as carbon fibers to form a matrix on the outer surface of a rubbe... | 08/02/1988 |
| 4758497 | Photosensitive naphthoquinone diazide sulfonyl ester compounds for the fabrication of lithographic plates and photosensitive sheet construction with the compounds The invention features a new series of triazine compounds which are characterized by their ability to generate free radicals upon irradiation in a desired optical region, such that they are useful in the fabrication of lithographic plates having improved ... | 07/19/1988 |
| 4738669 | Fluid dispenser using capillary action A fluid dispenser having a handle portion supporting at least three spaced-apart, flexible prongs or tines that meet at a pyramidal apex to form a fluid-containing cradle. The cradle holds a precise amount of fluid therein by surface tension between the p... | 04/19/1988 |
| 4656205 | Manufacture of polymeric beads Beads comprising a polymeric matrix containing a releasable lipophilic compound are made by precipitating the compound from solution within the matrix. Beads may be made by forming a homogeneous blend of the compound in lipophilic polymerizable material a... | 04/07/1987 |
| 4648880 | Implantable prosthetic devices An improved implantable prosthetic device for use in the human body which comprises a flexible container having therein a soft gel or fluid filling and an outer plastic covering bonded or otherwise connected to the flexible container. The external surface... | 03/10/1987 |
| 4644993 | Modular panel system A modular panel system consists of a plurality of panels. Each panel carries at least one and preferably two pivotal connection devices. Each pivotal connection device has thereon a hook-like or latch-like member which can fit into a slot to releasably co... | 02/24/1987 |
| 4643179 | Wound coverings and processes for their preparation Skin covering materials especially for wounds comprise dextran C insolubilized by reaction with epichlorohydrin in combination with a suitable humectant. The compositions may be in the form of coherent, self-supporting sheets of the insolubilized dextran ... | 02/17/1987 |
| 4640489 | Mold for making contact lenses, either the male or female mold sections being relatively more flexible A plastic mold assembly comprising a male and female section for casting soft contact lenses from a polymerizable feed material wherein compensation for polymerization shrinkage is attained and disengagement of the male and female mold sections is facilit... | 02/03/1987 |
| 4631182 | Process for preparation of a reducing gas The invention relates to a process for the preparation of a reducing gas having a high reduction potential by catalytic conversion in two steps of a sulphur-free gas mixture of hydrocarbons having a high content of hydrocarbons with two or more carbon ato... | 12/23/1986 |
| 4631137 | Materials for use in drilling fluids Bentonites can be extended for use in drilling muds by addition of a novel polymer blend comprising a low molecular weight water soluble non-ionic or anionic polymer and a high molecular weight anionic polymer.... | 12/23/1986 |
| 4609755 | Synthesis of vinyl esters An ester interchange process, preferably for the formation of vinyl higher esters from methyl acrylate or methacrylate, is conducted in the presence of a novel alcoholate of the formula wherein M1 is selected from Mg, Ca and Ba M2 is sele... | 09/02/1986 |
| 4602944 | Herbicidal pyridinium compounds and compositions Herbicidally-active compounds of the formula: ##STR1## where: Y represents halo or trifluoromethyl; Z represents hydrogen, halo, trifluoromethyl or nitro; A represents --N.dbd. or ##STR2## where X is as defined above for Z; and R represents --N... | 07/29/1986 |
| 4599379 | Process for the production of polymers and aqueous solutions thereof A stable, water dispersable, substantially anhydrous disperson of water soluble or water swellable polymer particles in water immiscible liquid is made by reverse phase suspension polymerization and dehydration of the dispersion and is rendered dispersabl... | 07/08/1986 |
| 4599403 | Method for recovery of stevioside An improved method for the recovery of stevioside from Stevia rebaudiana Bertoni plants is provided which does not require the use of dangerous chemicals or special separation equipment such as ion exchange or chromatography. In the process the raw materi... | 07/08/1986 |
| 4588464 | Method of producing a fluorocarbon filter element The present invention provides a filter element made wholly of fluorocarbons resin, comprising as essential elements a filter material produced by folding a sandwich-form sheet comprising a filter membrane made of a fluorocarbon resin and net supporters m... | 05/13/1986 |
| 4587108 | Flocculation of acid leach slurries The rate of separation of insoluble material from an acid-leached uranium slurry is improved by adding a flocculating agent that is a combination of polyacrylamide and a copolymer of acrylamide with 2-acrylamide-2-methylpropanesulphonic acid or a water so... | 05/06/1986 |
| 4585812 | Polymeric dispersions A high solids, pumpable stable dispersion of substantially anhydrous water soluble or swellable polymer particles contains at least 70% by weight polymer and contains 1 part by weight fine polymer particles below 10 microns in size and 0.1 to 7 parts by w... | 04/29/1986 |
| 4585843 | Exothermic reactions An exothermic gel polymerization process conducted in the presence of water is initiated at a low temperature, is held for most of the process at a higher temperature by including in the medium a particulate heat sink material, such as sodium sulphate dec... | 04/29/1986 |
| 4583982 | Fluid dispenser A fluid dispensing device features a hand held tool having at least three fluid supporting prongs. The prongs are arranged in pyramidal fashion to form a fluid containing cradle at the apex. An exact amount of fluid is held in the cradle by surface tensio... | 04/22/1986 |
| 4582756 | Organic microballoon Inorganic fillers such as silica balloons are used as a lightweight filler for resin moldings. But the specific gravity of these inorganic fillers is about 0.2 at most, so that there is a limit to reduction in weight. The foamed product of organic polymer... | 04/15/1986 |
| 4581763 | Container for the collection of urine and/or faeces A container, which is flat in its empty condition, of plastic, rubber or another flexible material, especially for the collection of urine and/or faeces. The container comprises two outer walls (2) joined together in a surrounding seam (6), an inlet (54) ... | 04/08/1986 |
| 4581275 | Base cloth for reinforcement The present invention provides a base cloth for reinforcement produced by winding a weldable yarn on either one of a warp or weft or the both at a definite interval, arranging the warp and weft in the respective directions and then thermally welding the b... | 04/08/1986 |
| 4576914 | Method for enhancing a fungus-lytic activity of ଲ-1,3-D-glucanase A method of enhancing a fungus-lytic activity of ଲ-1,3-D-glucanase which comprises using said glucanase in the presence of one or more of the activators selected from the group consisting of sodium lauroylsarcosinate, polyoxyethylene alkylphenyl eth... | 03/18/1986 |
| 4571422 | Polymer suspensions Polysaccharide is provided as a fluid composition that is a dispersion of the polysaccharide in oil and that contains a dispersion promoter selected from surfactants and stabilizers. The dispersion is generally a stable flocculated dispersion. It is gener... | 02/18/1986 |
| 4565348 | Mold for making contact lenses, the male mold member being more flexible than the female mold member A plastic mold assembly comprising a male and female section for casting soft contact lenses from a polymerizable feed material wherein compensation for polymerization shrinkage is attained and disengagement of the male and female mold sections is facilit... | 01/21/1986 |
| 4559074 | Water absorbing polymers Substantially non-ionic polyacrylamide cross linked with a low amount of cross linking agent is used as an additive for a plant growth medium.... | 12/17/1985 |
| 4556728 | Separation of methanol from mixtures containing it A substantially anhydrous mixture of methanol with an organic compound with which it forms an azeotrope can be separated by dissolving into the mixture lithium chloride or other suitable salt that forms a complex with methanol so as to form a homogeneous ... | 12/03/1985 |
| 4554307 | Water soluble polymers and dispersions containing them Pigment dispersions contain, as dispersing agent novel water soluble polymers containing acid groups, preferably polyacrylic acid or copolymers of polyacrylic acid with AMPS, having polydispersity below 1.5 and molecular weight in the range about 1,000 to... | 11/19/1985 |
| 4554298 | Water soluble polymers A water soluble polymer containing acid groups can be fractionated into higher and lower molecular weight fractions by partial neutralization of the polymer as a solution in a blend of water and a low molecular weight alcohol and separating the resultant ... | 11/19/1985 |
| 4554018 | Production of polymeric thickeners and their use in printing A thickening agent that is particularly suitable for alkaline print pastes is a water insoluble, water swellable or water swollen polymer made by reverse phase polymerization of a blend of water soluble, copolymerizable monomers in which the monomers comp... | 11/19/1985 |
| 4552202 | Alkali metal silicate solutions and method of forming foundry products using the solutions Aqueous alkali metal silicate solutions are made by dissolving an alkali silica powder that includes insoluble impurities and putting the impurities into stable suspension with a suspending agent such as a cellulose derivative. When used as a foundry bind... | 11/12/1985 |
| 4549027 | Fungicidal and plant growth regulant triazole and imidazole sulfide compounds Compounds of formula ##STR1## where Az is 1-imidazolyl or 1-(1,2,4-triazolyl); R1 is aryl or optionally substituted alkyl; R2 and R3, which may be the same or different, are hydrogen or alkyl or, together with the car... | 10/22/1985 |
| 4543423 | Hydration of nitriles A nitrile, such as acrylonitrile, is hydrated to the corresponding amide in the presence of a Raney copper catalyst that, before use in the reaction, is partially oxidized by contact with a controlled oxidizing system comprising oxygen, peroxide, iodate, ... | 09/24/1985 |
| 4543422 | Synthesis of vinyl esters A vinyl ester of the formula R3 COOR4 where R3 is CH2 .dbd.CH-- or CH2 .dbd.C.CH3 -- and R4 contains at least four carbon atoms and is selected from alkyl, cycloalkyl and aminoalkyl i... | 09/24/1985 |
| 4536485 | Process for the preparation of catalysts for use in ether synthesis An aluminosilicate catalyst for catalytic dehydration of alcohols into ether is prepared by the steps of (a) contacting a crystalline aluminosilicate at below 800° C., preferably 320°-800° C., with a nitrogen-containing base, preferably ammonia or... | 08/20/1985 |
