Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 4185130 | Magnetic image decorator A magnetic image decorator is disclosed wherein two or more rotatable cylindrical magnetic augers disposed in a sump of magnetically attractable toner are used in conjunction with cooperating knife blades to decorate a surface containing a latent magnetic... | 01/22/1980 |
| 4182660 | Method of producing a perforated metal foil To produce a perforated metal foil, especially for use in a screen printer, a decomposable, dissoluble or vaporizable dielectric substance is deposited on a cylindrical conductive substrate in a dot pattern under the control of a photoelectrically scanned... | 01/08/1980 |
| 4180606 | Fabrics having flocked corduroy ribs Flocked fabric products having a woven corduroy appearance, including method and apparatus for producing such fabrics wherein an indefinite length substrate sheet is transported in a generally horizontal path of travel through a coating apparatus where a ... | 12/25/1979 |
| 4167595 | Method of printing on plastic foil Plastic webs, including webs of rigid and plasticized PVC, can be printed at high speed on conventional rotogravure presses with an ink whose vehicle consists of polyalkyl acrylate and polyalkyl methacrylate binder dispersed in a homogeneous, aqueous solv... | 09/11/1979 |
| 4151311 | Post colloid addition of catalytic promoters to non noble metal principal catalytic compounds in electroless plating catalysts A process and composition for catalyzing a substrate prior to electroless metal deposition. The catalyst formulation comprises the colloidal product resulting from the admixture of a principal catalytic agent and a catalytic promoting agent. The principle... | 04/24/1979 |
| 4148943 | Process for the preparation of matted photographic layers containing gelatine In a process for the preparation of matted photographic layers gelatine particles which are dispersed in a water-in-oil emulsion are hardened, separated from the emulsion, redispersed in water, added to the layer which is required to be matted, and the ca... | 04/10/1979 |
| 4148944 | Method for printing vinyl flooring with water based ink composition A method for printing a decorative design on the surface of a vinyl material such as sheet vinyl flooring using a water based ink. The ink is a blend of acrylic and vinyl latexes and contains coalescing agent as well as surfactant and pigment.... | 04/10/1979 |
| 4138284 | Method of forming graded shade band on substrate A method of forming a colored shade band having a relatively wide portion of essentially uniform intensity and a relatively narrow boundary portion of graded intensity by spraying a dye composition along a longitudinally extending edge portion of a non-el... | 02/06/1979 |
| 4133918 | Method of marking semiconductors A non-contacting, non-clogging, electro-mechanically operated marking device or inker for continuous or intermittently marking a semiconductor wafer die is disclosed together with a method of operating the device. The marking device has an ambient pressur... | 01/09/1979 |
| 4100010 | Method for making decorative emblems A method of casting decorative emblems from a polyurethane-type compound. A series of decorative discs are held flat and horizontal while the polyurethane composition is cast thereon to form a meniscus. The polyurethane composition comprises a polyether p... | 07/11/1978 |
| 4088073 | Process for preparing ink releasing stencil A novel method for preparing a stencil master, a novel stencil and a method for printing therefrom are provided. The method for preparing the stencil comprises coating a suitable screen with a curable silicone containing a curing catalyst, depositing a pa... | 05/09/1978 |
| 4086372 | Method for applying an organic liquid sample A method for applying an organic liquid sample such as blood or the like onto an absorbent sample support. The method includes the steps of filling a reservoir with a relatively massive sample, superimposing over the reservoir a sample carrier wettable by... | 04/25/1978 |
| 4082871 | Method for forming a decorative novelty device A method of forming a decorative novelty device using stone material which comprises treating the stone with a wash medium, applying one or more thin coatings of clear polyurethane, stone to dry, and finally applying one or more thin coatings of the clear... | 04/04/1978 |
| 4070508 | Recording method comprising reacting cellulose fiber with a basic color former A recording method and material employing a basic color former component which changes to a colored species by an interaction with a cellulose fiber and has a molecular extinction coefficient of not less than about 100 in an ethyl alcohol solution.... | 01/24/1978 |
| 4066585 | Printing inks and printing methods employing the same Intaglio and flexographic printing processes employing solvent-free inks, solid at room temperature but molten at printing temperatures, are disclosed, as are inks suitable therefor, said inks comprising a pigment and a thermoplastic binder having a softe... | 01/03/1978 |
| 4064290 | System for coating plated through hole surfaces A system is disclosed for coating the interior surfaces of plated through holes in printed circuit boards by flowing a minimal volume of a low viscosity fluid carrying resist solids through holes in a board. After coating, the liquid phase of the fluid is... | 12/20/1977 |
| 4064288 | Method for registering anode and cathode layers on a web An apparatus and method for making continuous, elongated strips or webs, of electrically conductive, flexible material having individual and successive deposits, or patches, spaced apart therealong, each deposit comprising a cathode layer on one face of t... | 12/20/1977 |
| 4060262 | Record material A sensitized record sheet for developing useful color in oily, colorless, chromogenic dye-precursor inks applied thereto. Said record sheet is acid-reacting and bears a liquid ink comprising a non-evaporable liquid organic solvent having dissolved therein... | 11/29/1977 |
| 4055683 | Method of balancing rotors The present invention relates to balancing of rotors. The method of balancing rotors consists in successive application of portions of a liquid quickly solidifying compound to "light" points on the rotor surface, said portions being applied by the force o... | 10/25/1977 |
| 4054684 | Composition for forming colored images, new recording material and process using same The photochromic activity of triphenylmethane paraamino leuco salts is reversibly inactivated in compositions containing the leuco salt with certain metallic oxides or sulfides. The photochromic properties of the leuco salts are restored by the applicatio... | 10/18/1977 |
| 4048349 | Composite metal polymer films A process is described for producing a composite metal film in which metalliferous particles and polymer particles are co-deposited on a substrate, the proportion of metalliferous particles being such that the metal film is discontinuous, the metal partic... | 09/13/1977 |
| 4046936 | Imprinted compressible foam article and method of manufacture A multicellular compressible article comprising a volume of compressible foam cut to predetermined dimensions, and a design imprint on the surface of the foam deposited by direct heat transfer sublimation of sublistatic ink.... | 09/06/1977 |
| 4044176 | Graphic arts and graphic media Graphic arts media are provided which offer raised, three-dimensional effects. A basic medium is formulated of a colorant, film-forming binder, a solvent vehicle and thermally expandable microspheres. The microspheres are treated to preclude or inhibit so... | 08/23/1977 |
| 4035500 | Method of depositing a metal on a surface of a substrate A method of depositing a metal on a surface of a substrate is disclosed. The method comprises forming a dielectric coat containing an activating metal species on the surface of the substrate. The coat is then treated with a reviving agent selected from ch... | 07/12/1977 |
| 4004049 | Sprayable latex adhesive systems providing raised spaced deposits of adhesive and laminates prepared therefrom Laminates are formed by providing a pressure sensitive adhesive latex characterized by a Hamilton Beach grit value of 0.03 to 3.0 and an average particle size of less than 0.5 microns and spraying the adhesive onto the substrate to be laminated with press... | 01/18/1977 |
| 3995075 | Inside stripe by intermittent exterior spray guns Methods and apparatus for coating the interior side seam of can bodies. The can bodies proceed down a line in serial order with end toward end and uniformly spaced from each other down the line extending from a can body side seaming machine. An airless sp... | 11/30/1976 |
| 3979247 | Method and apparatus for decorating articles A method and apparatus for decorating the outer surface of an article or ware at a plurality of decorating stations wherein registration between the decoration applied at each of the plurality of stations is maintained. The article is advanced to each of ... | 09/07/1976 |
| 3976527 | Method of extruding thermoplastic films A composite article suitable for forming liquid-containing paperboard cartons is made by laminating an extruded thermoplastic film to an elongated paperboard web. The film has thick and thin strips and the thick strips are laminated to the web over areas ... | 08/24/1976 |
| 3974308 | Method for treating a disposable surgical drape A normally hydrophobic, open-celled polyurethane foam for use on the surface of a disposable surgical drape is treated with the reaction product of a mineral acid and a fatty acid tertiary amine, wherein the amine is partially neutralized to a fatty acid ... | 08/10/1976 |
| 3973058 | Method for printing interlayers for laminated safety glass Disclosed herein is an improved printing method for tinting synthetic resin sheets used in the manufacture of laminated safety glass. The improvement comprises using an ink containing 12 to 35% by weight, based on the total weight of dye and solvent, of o... | 08/03/1976 |
| 3972528 | Baseball bat grip A friction grip for the handles of bats, rackets and the like which has a permanent tacky feel increasing in tackiness as the hands of a user heat up and perspire is provided by coating the handle with a composition having a synthetic rubber base, an anti... | 08/03/1976 |
| 3967009 | Method for applying liquid to a substrate This invention provides a method and apparatus for applying liquid to accurately defined areas of solid substrates such as paper, plastics materials and textiles. The method essentially involves the application of the substrate with appreciable pressure t... | 06/29/1976 |
| 3959547 | Process for the formation of real images and products produced thereby Non-conductive real images are formed on substrates by depositing reducible metal salt compositions thereon and exposing the coated substrates to radiant energy or a chemical reducing agent to reduce the metal salt to metallic nuclei and to produce a real... | 05/25/1976 |
| 3958045 | Method of making an automatic volume control pipet An automatic filling capillary pipet having a tubular body defining an elongated bore having a fluid entry end. The interior surface of the tubular body having a first zone with hydrophobic means for resisting wetting by aqueous liquids. The tubular body ... | 05/18/1976 |
| 3955015 | Method of manufacturing a transparent light conducting element of synthetic resin having refractive index gradient A method of manufacturing a light conducting element of synthetic resin in which a continuous change takes place in refractive index from the surface of the element toward its interior, which comprises bringing a transparent solid article of a network pol... | 05/04/1976 |
| 3953624 | Method of electrolessly depositing nickel-phosphorus alloys Nickel-phosphorus alloys are electrolessly deposited such that initial deposition takes place at a relatively rapid rate and at a particular acid pH, then when the nickel content of the bath has dropped to a low level, pH drops rather abruptly and the fin... | 04/27/1976 |
| 3937859 | Interlining made of a thermoplastic and thermosetting resin composition A new and improved resin composition having both thermoplastic and thermosetting properties and suitable for use for coating fabrics to produce fusible interlinings. The resin composition consists of a terpolymer having the following formula: ##EQU1#... | 02/10/1976 |
| 3936556 | Marking of articles A process for identifying manufactured articles in which a marking agent such as a homo- or copolymer of polymerizable ethylenically unsatured monomers is applied to the articles. Said homo- or copolymer contains at least one group which can be split off ... | 02/03/1976 |
| 3931431 | Photographs coated with a protective and finishing layer Compositions to be applied to professional studio photographs on color paper or black and white emulsions for protective and finishing purposes comprising a vinyl resin in particulate form dispersed in methyl isobutyl ketone to which is added a blend of a... | 01/06/1976 |
| 3931432 | Printing process Process for gravure or flexographic printing of flexible substrates wherein the printing vehicle comprises a dispersion of film-forming polymer particles in an inert organic liquid, the dispersion being stabilised by a defined polymeric stabiliser and bei... | 01/06/1976 |
