Bizarre Patents
A Receptacle for supporting, rotating and sculpting a portion of ice cream or similarly malleable food while it is being consumed.
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 |
| 6337752 | Data carrier having an optically variable element and methods for producing it The invention relates to a system comprising a series of data carriers, in particular identity cards, papers of value or the like, whereby the data carriers belonging to the system exhibit diffraction structures containing standard information and parts o... | 01/08/2002 |
| 6323972 | Real-time analog creation of holographic fourier transform matched filters A method is disclosed by which filters are created optically in real time--and tested. This technique is made possible by recent advances in Charge Couple Detector (CCD) detector array technology. Pixel (picture element) size has decreased to the point th... | 11/27/2001 |
| 6317226 | Dot matrix hologram for hiding a moire pattern A moire pattern technology about a dot matrix hologram for hiding a moire pattern is invented. In the moire pattern hidden region of a dot matrix hologram, the moire pattern foreground area and the moire pattern background area are formed identically by i... | 11/13/2001 |
| 6310700 | Velocity matching electrode structure for electro-optic modulators This is an electro-optic modulator having an electro-optic substrate such as lithium niobate, an optical waveguide defined within the substrate, an electrode structure including a microwave transmission line elevated from the substrate by conductive legs.... | 10/30/2001 |
| 6301047 | System for optically identifying an object The object to be identified is affixed with an identification medium comprising a reflective layer consisting of a reflective hologram or diffraction grating. The high polymer cholesteric liquid crystal provides an inexpensive identification medium, and t... | 10/09/2001 |
| 6280891 | Multi-layer assembly and method for marking articles and resulting marked articles Methods and adhesive labels useful in marking products or documents by applying these to substrates. A mark such as a barcode, photograph or characters are formed directly on the substrate and the adhesive label is applied over it. The adhesive label incl... | 08/28/2001 |
| 6271967 | Optically diffractive structure The invention concerns a structure arrangement that includes surface regions having one or more structures having an optical-diffraction effect, in particular for visually identifiable, optical security elements for value-bearing documents, for example ba... | 08/07/2001 |
| 6252685 | Optical recording medium and apparatus of judging fake thereof A phase watermark hologram "W" is composed of a blaze having binary phase difference of 2π×n, where "n" is a natural number of more than 1. An watermark appears in response to phase difference, which changes by a faked blaze. A phase watermark hologram ... | 06/26/2001 |
| 6243202 | Structure arrangement, in particular for a security element A structural arrangement having optical diffraction qualities for use as a security element in a value bearing document, such structural arrangement having a plurality of surface regions having at least two subregions having identical relief structures wh... | 06/05/2001 |
| 6226109 | Diffractive security device on compact discs This invention relates to marking the genuine CD in an easily detectable way while difficult to counterfeit. The improved CD has within its layers a second structured surface parallel to the flat surfaces of the CD. The second structured surface acts as a... | 05/01/2001 |
| 6222650 | Holographic authentication element and document having holographic authentication element formed thereon Device, method, and system for recording diffractive high resolution text, pictorial, and/or other graphical information is provided which is particularly suited to recording information that would be difficult to reproduce by typical counterfeiting metho... | 04/24/2001 |
| 6171734 | Security printed document to prevent unauthorized copying A paper substrate is laminated with a metalized layer forming a mirrored surface. A partially transparent black diffraction grating is applied by stochastic screening to the mirrored surface. The diffraction grating forms a random pattern from selected ge... | 01/09/2001 |
| 6124953 | Wallpaper construction having a holographic border A decorative construction 10 for attachment to a vertical surface wherein the decorative construction 10 includes a main image unit 11 comprising a generally elongated rectangular sheet of decorative paper 20 and a plurality of holographic image units 12 ... | 09/26/2000 |
| 6111671 | Match filters for a real time fingerprint sensor and verification system A real time fingerprint verification system includes a recording device and a verification device each having a fingerprint scanner for generating a flat, dimensionally undistorted, high contrast, fingerprint image, and an intensity sensitive, spatial lig... | 08/29/2000 |
| 6088161 | Diffractive device having a surface relief structure which generates two or more diffraction images and includes a series of tracks A diffractive device has a surface relief structure which when illuminated by a light source, generates one or more diffraction effects which are observable from a range of viewing angles around the device. At least part of the surface relief structure is... | 07/11/2000 |
| 6070724 | Package with holographic image generating decal In order to depict features such as pivoting and/or the flexure of elements of an article or articles which are enclosed within a package, at least one holographic generating layer is disposed on the package to provide an enlarged highlighted view of a po... | 06/06/2000 |
| 6066378 | Volume hologram laminate and label for preparing volume hologram laminate A multilayered volume hologram structure of the invention comprises a substrate 2 for a certificate or the like, and an adhesive layer 5, a volume hologram layer 5 and a surface protective film 7 laminated on the substrate in the described order. When a m... | 05/23/2000 |
| 6066437 | Film which can be lettered using a laser beam This invention relates to film which is lettered with a laser beam comprising at least one protective film which is transparent to the laser beam, at least one opaque layer which is ablated by the laser beam, and at least one contrast-forming layer on its... | 05/23/2000 |
| 6036807 | Method for applying a security code to an article For applying a security code to an article, such as a cheque guarantee card, credit card, identity card or component of a motor or machine, use is made of a hologram or kinegram wherein personification or identification symbols, letters, numerals or figur... | 03/14/2000 |
| 6017657 | Method for embossing holograms into aluminum and other hard substrates Surface relief holograms are prepared by directly impressing them into aluminum and other hard metal substrates, without the need to preheat or otherwise soften the substrate. A holographic embossing shim is prepared from a master and possesses a unique c... | 01/25/2000 |
| 6005691 | High-security machine-readable holographic card The hologram card generates a hologram image in response to an illumination light beam. The hologram card comprises a substrate of a first plastic material having a first refractive index. The substrate has a contoured surface. The contoured surface is fo... | 12/21/1999 |
| 6002499 | Real time fingerprint sensor and verification system A real time fingerprint verification system includes a recording device and a verification device each having a fingerprint scanner for generating a flat, dimensionally undistorted, high contrast, fingerprint image, and an intensity sensitive, spatial lig... | 12/14/1999 |
| 5999280 | Holographic anti-imitation method and device for preventing unauthorized reproduction A holographic anti-imitation method and device is provided, which can prevent a creative graphic design from unauthorized reproduction. The holographic anti-imitation method and device provides the creative graphic design as a hidden pattern in a synthesi... | 12/07/1999 |
| 5969863 | Surface pattern including light-diffracting relief structures A surface pattern has two surface portions with microscopically fine, light-diffracting relief structures. The relief structures are in the form of grating structures GS1 and GS2, respectively, which are composed of at least two superimposed gratings G1 a... | 10/19/1999 |
| 5956164 | Two-dimensional/three dimensional graphic material and method of making same Graphic material includes at least one area bearing a hologram and at least one area bearing a diffraction grating. Preferably, the diffraction grating and the hologram are simultaneously viewable from at least one perspective. The graphic material is mad... | 09/21/1999 |
| 5943144 | Process for the manufacture of non-replicable holograms possessing authenticity features and a reading device to check authenticity A process for the manufacture of non-replicable holograms possessing authenticity features which are copies of a master hologram. To form a master hologram, a hologram is taken of a randomly structured optical element, for example of a ground glass screen... | 08/24/1999 |
| 5912767 | Diffractive indicia for a surface Diffractive indicia for a surface (1) comprising a plurality of small separate diffractive elements (2) and means for a adhering the diffractive elements to the surface. Each diffractive element has a diffractive surface relief structure and is not separa... | 06/15/1999 |
| 5909313 | Multiple image diffractive device A pixellated diffractive device includes a multiplicity of pixels in turn divided into multiple sub-pixels. The device is related to one or more pixellated diffraction surface structures which when illuminated generate respective corresponding optically v... | 06/01/1999 |
| 5900954 | Machine readable record carrier with hologram A record carrier (e.g., an identification card) of the type containing machine-readable representations of data, wherein the record carrier comprises a substrate, a first pattern of machine-readable indicia applied to one surface of the substrate, and a h... | 05/04/1999 |
| 5896359 | Spinning disc volume holographic memory A volume holographic memory has a spinning disk comprised of photorefractive medium, object beam optics configured to direct an object beam through the outer edge of the disk, and reference beam optics configured to simultaneously direct a reference beam ... | 04/20/1999 |
| 5896208 | Master hologram for the production of copy-proof holograms A method for the production of holograms proof against copying and imitation possessing authenticity features, which are copies of a master hologram. In accordance with the invention as a master hologram a hologram of a randomly structured optical element... | 04/20/1999 |
| 5886798 | Information carriers with diffraction structures An information carrier has at least one diffraction pattern which is formed from microscopically fine relief structures and which, upon being illuminated with coherent light, produces in two spatially separate directions, a first and a second image of an ... | 03/23/1999 |
| 5857709 | Anticounterfeit documentation with see-through and write-able hologram A security document form such as a bank draft, or other document of value may incorporate a see-through and write-able hologram or diffractive grating as an anticounterfeit measure. The hologram may extend over all or a portion of the form such as the sig... | 01/12/1999 |
| 5843626 | Method for manufacturing a master disc for optical discs In a method for manufacturing a master disc for optical discs, patterns to be displayed on the disc are classified into a main object and a background. The background is commonly assigned as the background pattern for glittering rainbow colors by diffract... | 12/01/1998 |
| 5841555 | Secure optical identification method and means A method of providing secure identification for an article, including: providing on the article a diffraction grating strip including a pattern of a series of diffraction grating elements, each the diffraction grating element to diffract light, from a lig... | 11/24/1998 |
| 5838466 | Hidden Holograms and uses thereof Replicas of a surface relief hologram, or other light diffraction pattern, are coated with a transparent material having substantially the same refractive index as the holograms to conform to the surface relief patterns and thus hide the hologram. The coa... | 11/17/1998 |
| 5835245 | Holographic method and materials to detect and prevent forgery in identity cards Security and identity cards including at least one hologram of the card, or part of the card, are disclosed. Holographic methods and materials to detect and prevent forgery in identity cards such as credit cards and access cards to security areas are disc... | 11/10/1998 |
| 5825475 | System and method for determining which of a plurality of visually indistinguishable objects have been marked with a covert indicator A system and method for determining which of a plurality of visually indistinguishable objects have been marked with a covert indicator in which a portion of a surface of each of a first type of objects are provided with a covert holographic indicator whi... | 10/20/1998 |
| 5825547 | Diffractive device for generating one or more diffracting images including a surface relief structure at least partly arranged in a series of tracks A diffractive device having a surface relief structure which, when illuminated by a light source, generates one or more diffraction images which are observable from particular ranges of viewing angles around the device, wherein at least part of the surfac... | 10/20/1998 |
| 5825514 | Master hologram for the production of copy-proof holograms A method for the production of holograms proof against copying and imitation possessing authenticity features, which are copies of a master hologram. In accordance with the invention as a master hologram a hologram of a randomly structured optical element... | 10/20/1998 |
