Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8182651 | Sheet material comprising at least one watermark having a colored shade The present invention relates to a sheet material comprising at least one first layer defining an outer surface of the sheet material and having at least one first color, at least one second layer comprising at least one watermark and having at least one second colo... | 05/22/2012 |
| 7871492 | Decorative tissue sheets Forming fabrics for making tissue webs are provided with structural icons on the side of the fabric that does not contact the tissue web during formation. The resulting tissue web has good formation without pinholes, yet contains a watermark corresponding to the sha... | 01/18/2011 |
| 7427334 | Method and apparatus for encoding substrates with information The present invention provides methods and apparatus to encode substrates (e.g., paper, synthetics, etc.) with information. In one implementation a method is provided including: receiving data that corresponds to a two-dimensional signal that encodes plural bits of ... | 09/23/2008 |
| 7399513 | Paper including watermarks and/or embossing The invention relates to improvements in paper, and in particular to the use of watermarks and/or embossings for strengthening paper sheets and documents made therefrom. The invention therefore provides a sheet of paper having at least three corners and three sides ... | 07/15/2008 |
| 7381296 | Method of forming decorative tissue sheets Forming fabrics for making tissue webs are provided with structural icons on the side of the fabric that does not contact the tissue web during formation. The resulting tissue web has good formation without pinholes, yet contains a watermark corresponding to the sha... | 06/03/2008 |
| 7367592 | Marking substance and security markings for testing the authenticity of documents The invention relates to a marking substance for security documents of the kind difficult to discern by counterfeiters. The preferred marking substance is polyethylene dioxythiophene polystyrene sulfonate and, more particularly, PEDT/PSS of the CPP105 formulation. | 05/06/2008 |
| 7326318 | Hydraulically entangled nonwoven material and method for making it A wetlaid or foam formed hydraulically entangled nonwoven material containing at least 30%, by weight, pulp fibres and at least 20%, by weight, man-made fibres or filaments. The material has a basis weight variation in a non-random pattern in that it comprises a plu... | 02/05/2008 |
| 7152047 | System and method for production and authentication of original documents A system and method for authenticating documents and content thereof. A counterfeit resistant document recording medium is provided, having thereon a predefined unique document identifier and at least one security feature. The recording medium is thereafter imprinte... | 12/19/2006 |
| 7070678 | Paper webs having a watermark pattern A process for producing paper webs having a pattern formed into the web is disclosed. The pattern is formed during formation of the web and is made by varying the basis weight of the web. The paper web is produced by depositing an aqueous suspension of fibers betwee... | 07/04/2006 |
| 7029555 | Diagonally joined cylindrical fabric and manufacturing method thereof A diagonally joined cylindrical fabric in the form of a cylindrical endless fabric is obtained by shifting ends of facing wefts of a non-endless fabric leftward or rightward and joining together the ends of the wefts to thereby form a joining portion inclined relati... | 04/18/2006 |
| 6974623 | Antifalsification paper provided with applied coding consisting of luminescent mottled fibers The invention relates to a security paper with at least two types of mottled fibers, which differ in terms of their luminescent characteristics and form a code. In each case one type of mottled fibers is present in a defined subarea of the security paper, and the co... | 12/13/2005 |
| 6936138 | Apparatus for incorporating feature substances into a paper web A method and apparatus for incorporating feature substances into a still moist but already sufficiently consolidated paper web provides for directing a feature substance suspension onto the surface of the paper web as a laminar jet with low jet pressure. A special p... | 08/30/2005 |
| 6911115 | Security paper Security paper (1) has a security zone (2) for providing protection against mechanical falsification. The security zone comprises a set of cells (3) indented in the paper and optionally interconnected by indented link portions, the thickness of ... | 06/28/2005 |
| 6824647 | Method for marking a sheet of paper and sheet with a watermark A method for marking a watermark-type pattern onto at least part of an absorbent paper sheet is described. The method involves stress-deforming the sheet by making it pass between at least one first roll and at least one second roll. A film of additive is applied in... | 11/30/2004 |
| 6630055 | Coated paper including a pseudo-watermark, and a method of manufacture The present invention relates to a method of manufacturing a coated paper having at least one mark resembling a watermark, the method being characterized in that said mark is made after the drying step which follows the last coating operation, by performi... | 10/07/2003 |
| 6592636 | Flow control within a press fabric using batt fiber fusion methods The present invention is directed to a press fabric having an anti-rewet scrim or "barrier" within the internal structure of a press fabric, and a method for making same. External materials are not necessary in creating the barrier. In other words, the ex... | 07/15/2003 |
| 6582556 | Security paper and methods for production thereof This invention pertains to security paper and methods of making such security paper. The invention comprises a light-colored base paper having a non-protection area of a first thickness, and a protection area of a second thickness on at least one major su... | 06/24/2003 |
| 6531032 | Security paper This invention pertains to security paper and methods of making such security paper. The invention comprises a light-colored base paper having a non-protection area of a first thickness, and a protection area of a second thickness on at least one major su... | 03/11/2003 |
| 6451168 | Method and apparatus for making patterned paper A method and apparatus for making patterned paper. A printer patterning the paper is arranged in a patterning unit arranged in a paper machine, the printer patterning a paper web being made in the paper machine. The printer is preferably an ink-jet printe... | 09/17/2002 |
| 6402888 | Security paper comprising localized areas with reduced thickness and opacity, and method for making same A method for making a paper sheet comprising at least one region which is thinner than the rest of the sheet. According to the method, a first paper layer (3) is formed on a wire in a first wet end of a paper-making machine, a second paper layer (5) is fo... | 06/11/2002 |
| 6368455 | Method for making security paper This invention pertains to security paper and methods of making such security paper. The invention comprises a light-colored base paper having a non-protection area of a first thickness, and a protection area of a second thickness on at least one major su... | 04/09/2002 |
| 6136146 | Non-through air dried paper web having different basis weights and densities A non-through air dried paper web and method of making such a paper web are disclosed. The paper web includes at least two regions of different density and at least two regions of different basis weight. In one embodiment, the paper web includes a relativ... | 10/24/2000 |
| 6086966 | Method for authenticating a textile product and a thread and a woven label usable therewith A method for authenticating a textile product, wherein a colorless composition is applied to at least one portion of at least one thread of the textile product. The composition comprises one of a pair of a colorformer and an activator which react when mix... | 07/11/2000 |
| 6063239 | Security paper The invention relates to security paper and in particular to a method for the manufacture of security paper that is provided with high-quality watermarks. In particular such a method comprises forming a papermaking suspension comprising cellulosic fibers ... | 05/16/2000 |
| 5961432 | Forgery preventive sheet and method of manufacturing same Anti-falsification paper is provided in which a thread is exposed at window portions provided on the surface of the paper, and which does not produce any cockles even when wound up continuously in a roll and has good appearance in terms of design. This an... | 10/05/1999 |
| 5928471 | Security features for paper The invention relates to improvements in security features in paper and in particular to a method of making paper and transparentising selected areas of paper to provide enhanced security features. The invention thus provides a method of making paper comp... | 07/27/1999 |
| 5897746 | Method for equipping papers of value with authenticity features In a method for providing papers of value with authenticity features, a homogeneous mixture is produced in a defined concentration from a feature substance present in powder form and a gas. This mixture is ejected at high speed from at least one nozzle di... | 04/27/1999 |
| 5871615 | Method for the manufacture of security paper Security paper carries an intricate tactile surface profile pattern which has been imparted to the paper during its manufacture, at a stage after initial de-watering but before final drying, by passing the paper through a nip between a forming surface cor... | 02/16/1999 |
| 5766416 | Method of producing watermark paper A method of producing watermark paper comprising forming a patterned wire by fixing and bonding a lace to a cloth wire for papermaking, fitting this patterned wire to a cylinder mould of a cylinder-vat machine or a dandy roll as a face wire, and making pa... | 06/16/1998 |
| 5405500 | Method for making sheet materials and security paper This invention relates to a method of making sheet materials and security paper having partially embedded therein an elongate security element which is at least substantially exposed at one surface of the sheet at a plurality of spaced locations, which me... | 04/11/1995 |
| 5399412 | Uncreped throughdried towels and wipers having high strength and absorbency Uncreped throughdried basesheets can be made with the caliper of the basesheet being independent of the basis weight of the basesheet. Multi-ply wipers and towels produced by plying together two or more of such basesheets having a relatively low basis wei... | 03/21/1995 |
| 5100512 | Dandy roll having a twill weave wiremark and related method for papermaking Paper having an unique twill weave wiremark produced using a dandy roll in which the outer screen bears has a twill weave; the dandy roll and the papermaking process are also disclosed.... | 03/31/1992 |
| 4919848 | Process for the quenching of fluorescence, and new cationic naphthalene-peri-dicarboxylic acid imide derivatives To quench the fluorescence generated by anionic optical brighteners, virtually colourless, water-soluble, cationic compounds are used which contain at least one cationic group per molecule or per repeating structural unit and at least two nitro group-free... | 04/24/1990 |
| 4879000 | Process for determining dimension errors A method of testing security papers with respect to the positions of a safety thread and water marks to detect errors in the paper is performed by a linewise scanning of a finished paper web. The web has at least two point like measuring marks inserted in... | 11/07/1989 |
| 4824691 | Imaged microcapsule-coated paper Imaged microcapsule-coated paper, e.g. pressure-sensitive copying paper, is produced by imaging paper by means of laser energy and then applying a coating of microcapsules over the image. The image may be a manufacturer's name, logo or trademark, and may ... | 04/25/1989 |
| 4760239 | Method of and apparatus for applying a mark to paper and a paper for use in such method A method of applying a "pseudo watermark" to paper, comprises the steps of preparing a paper containing a suitable amount of a thermally sensitive material, the presence of which renders the translucency of the paper variable by temperature change, and su... | 07/26/1988 |
| 4720325 | Method for the manufacture of a material in the form of sheets or a web provided with a watermarklike pattern A material (1) in the form of sheets or a web is provided with a watermarklike pattern (12) in the form of a text, figure or similar identification mark visible or displayable in transmitted light by means of relieflike mechanical working off of material,... | 01/19/1988 |
| 4552617 | Security features in paper Security features for authentification of currency paper are incorporated within the paper during the paper making process. Various codes are incorporated within the paper for viewing by means of transmitted light. In one embodiment the identifying indici... | 11/12/1985 |
| 4526652 | Dandy roll for manufacturing paper having simulated oxford cloth watermark and related method for papermaking A dandy roll useful in producing paper bearing a watermark which simulates oxford cloth and a papermaking process using the same are disclosed.... | 07/02/1985 |
| 4462866 | Sheet materials A sheet material such as paper is provided during manufacture with an elongate element partially disposed within the thickness of the paper sheet but exposed at spaced locations one one side of the sheet. The paper may be used in making security documents... | 07/31/1984 |
