...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7291209 | Ink for silk-screen printing and corresponding printing technique The present invention relates to inks for silk-screen printing technique, as well as the corresponding printing technique, designed to bestow upon the reproduction obtained by means of the use of said inks on an appropriate substrate, preferably of a paper type, a p... | 11/06/2007 |
| 7153353 | Carnuba silicone wax A carnuba silicone wax which does not contain free silicone oil. This wax is obtained by reacting a silicone compound having a substituent with reactivity to the hydroxyl group in natural carnuba wax, with this hydroxyl group. A carboxyl group may be introduced into... | 12/26/2006 |
| 6793720 | Solid marking composition as writing means, a writing instrument, an optically variable marking layer and use of a plurality of optically variable pigments A solid marking composition comprises a solid matrix containing at least one type of optically variable interference pigment flakes. The solid marking composition provides a document or article with a copy and counterfeit protection feature, and is preferably used i... | 09/21/2004 |
| 6764541 | Colorant compositions Disclosed is a colorant composition of the formula wherein R is an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group, and wherein R can be joined to the phenyl moiety to form a ring, R′ is an aromat... | 07/20/2004 |
| 6645282 | Phase change gravure inks and methods of printing with same A hot melt ink composition containing a an alkylene distearate which improves the color strength of the ink and is formed as a reaction product of a C4 -C8 diol and at least one acid selected from the group consisting of a C16 | 11/11/2003 |
| 6225369 | UV-curable, adhesive transfer ink Disclosed is a UV-curable transfer ink which can be cured by UV and used to emboss a precise and clear pattern on a substrate. It comprises 20-40% by weight of a UV-reactive ink, 20-40% by weight of an acrylic copolymer, 4-6% by weight of an ethylene viny... | 05/01/2001 |
| 6132500 | Hot-melt ink A hot-melt ink that exhibits good penetration into recording paper, comprises at least one binder and at least one coloring matter dispersed or dissolved therein, and the hot-melt ink, during cooling, exhibits a peak at a temperature of 61° C. or below o... | 10/17/2000 |
| 6117225 | Method of preparation of inks A process of producing a non-conductive ink formed from colorant particles and a non-conductive carrier liquid where the colorant particles are inherently of a low electrical resistivity. The process includes the steps of applying to the surface of the co... | 09/12/2000 |
| 6099631 | Ink development processes for the preparation of pigmented solid inks An ink development process for the preparation of pigmented solid inks including the steps of preparing a mill base and preparing an ink from the mill base. The mill base contains a pigment, and a solvent or oil as a wetting and dispersing media for the p... | 08/08/2000 |
| 6093239 | Hot melt ink A hot melt ink having a water auto-dispersibility of at least 50%, methods for using this ink to provide marks having a water auto-dispersibility of at least 50%, and methods for using this ink to provide UV opaque masks are disclosed.... | 07/25/2000 |
| 6063176 | Bright metallic intaglio ink composition A two-part metallic ink composition for intaglio printing is provided which produces bright and shiny ink deposits when printed. The two parts of the ink are stored separately from each other and mixed together either immediately or within a predetermined... | 05/16/2000 |
| 5980621 | Hot-melt ink A hot-melt ink includes an amide resin component and a wax component. The wax component includes at least montan ester wax and a ketone wax, and these waxes are contained in a total amount of at least 50 wt % based on the total amount of the hot-melt ink.... | 11/09/1999 |
| 5961703 | Aqueous ink having an extended cap-off time and process of manufacture thereof An aqueous ink having an extended cap-off time and a process for manufacturing the ink, wherein the aqueous ink is composed of water as the predominant or exclusive solvent, hydrocolloid/hydrocolloids or polysaccharide/polysaccharides as binding agents or... | 10/05/1999 |
| 5938826 | Hot melt ink A hot melt ink having a water auto-dispersibility of at least 50%, methods for using this ink to provide marks having a water auto-dispersibility of at least 50%, and methods for using this ink to provide UV opaque masks are disclosed.... | 08/17/1999 |
| 5741353 | Aqueous painting agent An aqueous writing agent, drawing agent or painting agent as an application material is composed of water, binding agent, coloring agent, surface-active agent and possibly other additives, such as particularly preservatives, thickening agent, filler and/o... | 04/21/1998 |
| 5681379 | Thermal transfer ribbon formulation A thermal transfer ribbon has a substrate and a coating which contains thermally active ingredients for transferring images onto a receiving medium upon the application of heat to said ribbon. The ingredients are predominately water based and are environm... | 10/28/1997 |
| 5621021 | Erasable writing ink composition The present invention provides an erasable writing ink composition which can be erased with an eraser after writing. The erasable writing ink composition of the present invention comprises 2 to 50% by weight of a resin selected from the group consisting o... | 04/15/1997 |
| 5597856 | Hot melt ink for transparency applications Phase change inks capable of passing light therethrough are suitable for color overhead transparencies, as well as plain paper printing. A composition for the ink carrier comprises an unsaturated bis-amide as a transparency enhancer, a low viscosity monoa... | 01/28/1997 |
| 5453120 | Erasable marking material and a method for the manufacture thereof An erasable marking material with a wax-based vehicle having a substantially uniform suspension of filler particles and pigment particles and a method for its manufacture. The wax-based vehicle is composed of a base wax and at least one supplemental wax. ... | 09/26/1995 |
| 5449399 | Blendable writing instrument Writing instruments are provided comprising a) a friction transferable binder comprising a colorant, and b) frangible microcapsules containing a liquid solvent. The writing instrument contains sufficient microcapsules to provide a Coloration Uniformity Pe... | 09/12/1995 |
| 5409530 | Hot-melt ink composition The present invention disclosed herein provides a hot-melt ink composition that can provide a good fixing strength and a high quality of print independently of the kinds of recording media. The hot-melt ink composition according to the present invention i... | 04/25/1995 |
| 5405438 | Hot melt ink for ink jet printers A hot melt ink for ink jet printers includes a vehicle that is solid at normal temperatures and which melts and liquifies when heated above its melting point, a pigment, and an aluminate coupling agent in an amount of about 1 to 50 weight percent, based o... | 04/11/1995 |
| 5397388 | Hot melt ink for ink jet printers A hot melt ink for an ink jet printer comprises 50 wt. % or more of a solid wax that is solid at normal temperatures and has a solubility parameter of not larger than 9.00, an organic substance having a solubility parameter greater than that of the solid ... | 03/14/1995 |
| 5354368 | Hot melt jet ink composition A hot melt jet ink composition comprising a tall oil resin having a high acid number exhibits improved adhesion when printed onto substrates.... | 10/11/1994 |
| 5350446 | Hot melt impulse ink jet ink with dispersed solid pigment in a hot melt vehicle A novel hot melt ink jet ink is disclosed for use in an impulse ink jet apparatus. The disclosed ink comprises a dispersed solid pigment which is formulated in a wax, or high molecular weight fatty acid or alcohol vehicle to form a hot melt ink which is s... | 09/27/1994 |
| 5188765 | Flow agent-dispersant composition Flow agent-dispersant composition for ink systems and the like comprising montan wax having from 3 to 10% of lecithin uniformly dispersed therein and a process for forming the same.... | 02/23/1993 |
| 5053079 | Dispersed pigmented hot melt ink In the embodiments described in the specification, a dispersed, pigmented hot melt ink contains a thermoplastic vehicle, a colored pigment, and a dispersing agent to inhibit settling or agglomeration of pigment when the ink is molten comprising an isocyan... | 10/01/1991 |
| 5037447 | Method for producing laundry-resistant recording medium Disclosed is a method for producing a laundry-resistant recording medium comprising a receiving substrate and thermally transferred record images formed on the receiving substrate, the method comprising the steps of forming record images on a receiving su... | 08/06/1991 |
| 5000786 | Ink composition and ink jet recording apparatus and method An ink composition particularly well suited for use in an ink on demand ink jet printer includes a first component, second component having a higher melting point than the first component and and colorant is provided. During printing, the ink is melted an... | 03/19/1991 |
| 4851045 | Hot-melt ink A hot-melt ink containing between about 5 and 50 parts by weight of montain wax or oxidized montan-type wax or both having a melting point between about 60° and 125° C. is provided. The ink is useful in a heat transfer sheet where it is provided as a la... | 07/25/1989 |
| 4776887 | Wax and ink composition for thermal ink transfer A wax for thermal ink transfer, which consists essentially of a reaction product of an -olefin having an average carbon number of from 16 to 100 with maleic anhydride, said reaction product having a weight average polymerization degree of from 1 to... | 10/11/1988 |
| 4760104 | Erasable ball-point pen ink An erasable ball-point pen ink is disclosed. The ink is comprised of a rubber component, a volatile solvent, an organic pigment and a nonvolatile solvent, which additionally contains fine powders of silicon dioxide formed by the hydrolysis of silicon tetr... | 07/26/1988 |
| 4758276 | Stearic acid-containing ink jet inks A stearic acid-containing ink jet ink for use in an ink jet apparatus which features good print quality. The ink jet ink is discharged from the ink jet ink apparatus at elevated temperatures above ambient.... | 07/19/1988 |
| 4724002 | Heat-sensitive transfer media A process is provided for the manufacture of heat-sensitive, heat-transferred media which includes a solid wax binder pigment and additives. The process provides for the mixing of molten wax binder with a mixture of pigment and water to transfer the pigme... | 02/09/1988 |
| 4721527 | Colored auto wax A liquid wax using a colored ink is disclosed. The product comprises a mixture of at least one wax and one liquid solvent, plus a water-soluble ink which produces a smooth, homogeneous liquid. The resultant colored wax is produced by a combination of blen... | 01/26/1988 |
| 4629748 | Erasable ball-point pen ink An erasable ball-point pen ink is described comprising a rubber component, a volatile solvent, a pigment and a nonvolatile solvent, said ink further containing at least one dispersant that is liquid at room temperature and completely soluble in said volat... | 12/16/1986 |
| 4614682 | Thermosensitive image transfer recording medium A thermosensitive image transfer recording medium comprising a support material and a thermofusible ink layer formed thereon, which thermofusible ink layer comprises a dye component, a binder agent and a pigment having a needle-like crystal form, which is... | 09/30/1986 |
| 4523956 | Transfer coating methods, compositions and products Coating methods and compositions for products and transfer media, such as carbon papers, in which the major constituent is a filler such as clay, titanium dioxide, calcium carbonate, or the like. The filler replaces a substantial amount of, and extends, t... | 06/18/1985 |
| 4484948 | Natural wax-containing ink jet inks A natural wax-containing ink jet ink for use in an ink jet apparatus which features good print quality. The ink jet ink is discharged from the ink jet ink apparatus at elevated temperatures above ambient.... | 11/27/1984 |
| 4390369 | Natural wax-containing ink jet inks A natural wax-containing ink jet ink for use in an ink jet apparatus which features good print quality. The ink jet ink is discharged from the ink jet ink apparatus at elevated temperatures above ambient.... | 06/28/1983 |