...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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 |
| 8181993 | ID card comprising a contoured relief structure, and corresponding production method An identification card of plastic, for example PVC or polyester, is introduced, in which tactile symbols in the form of foamed relief structures are clearly visually perceivable. The symbols are outlined by a contour achieved by discoloration of the plastic. ... | 05/22/2012 |
| 8177228 | Method and apparatus for monitoring the singling of sheet material The invention relates to an apparatus and a method for monitoring the singling of sheet material, in particular of bank notes. The invention starts out from monitoring the singling of sheet material, in particular of bank notes, by means of a singler having a... | 05/15/2012 |
| 8174360 | Communication apparatus for setting up a data connection between intelligent devices The invention relates to a communication apparatus for automatically setting up a data connection between two intelligent devices (10, 20, 30). The apparatus comprises a coil (13, 23, 33) for carrying out a contactless data exchange which is part of a ... | 05/08/2012 |
| 8172221 | Device for the separation of a sheet product Apparatus for continuous singling of stacks of loose sheet material, in particular bank notes, vouchers, checks, separation cards, etc., includes a singler for singling stacks of loose sheet material and a feeding device which moves stacks of loose sheet material to... | 05/08/2012 |
| 8172131 | Method for handling cassettes for bank notes A method is provided for handling cassettes for bank notes, for automatic tellers and/or deposit devices. The method for handling cassettes for bank notes, for automatic tellers and/or deposit devices, includes the step of determining the filling level of the casset... | 05/08/2012 |
| 8172066 | Apparatus for receiving and dispensing documents of value An apparatus for accepting and for outputting documents of value is provided with a checking device for checking the authenticity of fed documents of value, an entrance transport device for transporting documents of value along a transport path past the checking dev... | 05/08/2012 |
| 8167135 | Apparatus and method for accepting or dispensing bank notes The present invention relates to an apparatus and a method for accepting or dispensing or returning bank notes. An operator wishing to remove bank notes protruding from the apparatus for dispensing or returning, is assisted during removal in that the bank notes are ... | 05/01/2012 |
| 8157102 | Method and apparatus for processing sheet material The present invention relates to a method and apparatus for processing sheet material, in particular papers of value such as bank notes, checks, etc. The present invention starts out from the consideration that the validity of a successful check of sheet material is... | 04/17/2012 |
| 8149511 | Security element The present invention relates to a security element (20) for security papers, value documents and the like, having a micro-optical moiré magnification arrangement having a motif image that consists of a periodic or at least locally periodic arrangement of a ... | 04/03/2012 |
| 8146831 | Personalisation of portable data supports For personalizing a portable data carrier (1), a selection device (8) of the data carrier (1) analyzes commands (23) which the data carrier (1) receives from a personalization device (20) within the framework of a personaliz... | 04/03/2012 |
| 8139839 | Apparatus for checking the authenticity of banknotes An apparatus for checking the authenticity of bank notes in unprotected areas, has a sensor assembly containing a light source which produces light of a first wavelength with which the bank notes to be checked are illuminated; whereupon one or more feature substance... | 03/20/2012 |
| 8137899 | Data support with an opticallly variable element The invention relates to a data carrier with an optically variable structure having an embossed structure and a coating contrasting with the surface of the data carrier. The embossed structure and the coating are so combined that at least parts of the coating are co... | 03/20/2012 |
| 8132454 | Sensor and device for examining sheet material, and sensor maintenance method Sensor components having sides facing the sheet material have one or a plurality of front elements which are detachable and replaceable with low effort. So in the case of wear of the sensor fronts, entire sensor components no longer have to be replaced but only indi... | 03/13/2012 |
| 8130080 | Transponder actuatable switching device The present invention relates to a switching device for generating a switch signal, a reading device with the switching device and a method for the communication between a reading device and a transponder (T). The switching device includes an antenna (4), whi... | 03/06/2012 |
| 8123138 | Security element for documents of value Value documents including a security element having magnetic material for securing the value documents. Along the security element, for example along a longitudinal direction of the security element, there are disposed one or more magnetic areas and one or more gap ... | 02/28/2012 |
| 8123121 | Apparatus for accepting and dispensing banknotes The invention relates to an apparatus for accepting and dispensing or returning bank notes, including a pocket which is dividable by means of a dividing element into two areas for inputting and dispensing or returning bank notes, wherein the dividing element can be ... | 02/28/2012 |
| 8115910 | Apparatus and method for the optical examination of value documents An apparatus for optical analysis of at least one value document (12) in a recording area (38) of the apparatus has an illumination device (36) for illuminating the value document (12) in the recording area (38) and possessing at l... | 02/14/2012 |
| 8113419 | Processing device for value documents An apparatus for processing documents of value having a checking device for checking documents of value in a processing area, an intermediate repository arranged in an intermediate area for intermediately storing documents of value, a transport device for transporti... | 02/14/2012 |
| 8111882 | Method for verifying a fingerprint The invention relates to a method for testing a fingerprint whose reference data are stored in a portable data carrier. The reference data contain at least positions and orientations of minutiae and pores and an orientation vector. According to the invention it is p... | 02/07/2012 |
| 8107712 | Method and testing device for testing valuable documents A method as well as a respective checking apparatus for checking a document of value (1), with which the document of value (1) at least in a partial area is illuminated with an intensity (IB) and at different measuring places (2) the ... | 01/31/2012 |
| 8100436 | Data support with an optically variable structure The invention relates to a security element with an optically variable structure, which has an embossed structure and a coating, wherein the embossed structure and the coating are combined such that at least parts of the coating are completely visible upon perpendic... | 01/24/2012 |
| 8100249 | Apparatus for accepting and dispensing bank notes The invention relates to an apparatus for accepting and dispensing or returning bank notes, including an apparatus having a pocket for accepting and dispensing or returning bank notes, which is dividable by means of a dividing element into two areas for inputting an... | 01/24/2012 |
| 8100244 | Apparatus for receiving and dispensing documents of value An apparatus for accepting and for outputting documents of value is provided with a checking device for checking the authenticity of fed documents of value, a storage unit, which comprises at least two storages for storing at least two different types of documents o... | 01/24/2012 |
| 8087591 | Method for producing a portable data carrier Proposed is a method for producing a portable data carrier (100) starting out from a film carrier (10) having disposed on its upper side (14) a contact layout (28), and on its underside (16) a semiconductor circuit (20) conn... | 01/03/2012 |
| 8083894 | Method for manufacturing a security paper The present invention relates to a method for manufacturing a security paper, for security or value documents, that exhibits at least one through opening (12) having characteristic irregularities (14) in the edge region. According to the present invent... | 12/27/2011 |
| 8077961 | Bank note processing machine and method for identifying forged bank notes The invention relates to a bank note processing machine and a method for recognizing forged bank notes. With the bank note processing machine according to the invention and the method for recognizing forged bank notes according to the invention the starting p... | 12/13/2011 |
| 8077364 | Security system, particularly for valuable documents The invention relates to a security system especially for security documents, wherein a security element is provided in a carrier plane, that under incident light holographically reconstructs a pattern outside the carrier plane, in which concealed information is sto... | 12/13/2011 |
| 8020852 | Device for the torque limitation in a machine for processing means of payment The present invention relates to a device for the torque limitation in a machine for processing means of payment. The invention has use as a device for limiting torque in a machine for processing means of payment, wherein the device for the torque limitation include... | 09/20/2011 |
| 8009881 | Digitization of a papillary structure A method and apparatus is described for recording and digitizing intensity profiles (IP) of the papillary structure of the skin with high intensity resolution using sensors S with low intensity resolution. For this purpose, a plurality of digital image signals (DS, ... | 08/30/2011 |
| 8006898 | Method for verifying the authenticity of documents The invention relates to a method for testing the authenticity of documents, in particular bank notes, documents of value or security documents, by authenticity criteria. To increase the reliability of authenticity testing of documents, at least two different authen... | 08/30/2011 |
| 8002210 | Apparatus for canceling sheet material The invention relates to an apparatus for canceling, in particular destroying, sheet material, in particular bank notes. The apparatus includes at least one canceling means to which the sheet material to be canceled is fed, in which the fed sheet material is cancele... | 08/23/2011 |
| 7999237 | Valuable document The invention relates to a printed value document having at least one luminescent substance. ... | 08/16/2011 |
| 7997418 | Method and device for processing units of money The invention relates to a method and a device for processing monetary units such as banknotes or coins, in which the monetary unit are conveyed from an input compartment in each case to one of a plurality of output compartments as a function of predefined sorting c... | 08/16/2011 |
| 7992871 | Device for changing the direction of movement of sheet-type products A transport apparatus for transporting flat, rectangular sheet material, in particular sheet-shaped value documents such as bank notes, comprises a distributing element reciprocating between at least two positions, or at least two distributing elements reciprocating... | 08/09/2011 |
| 7989055 | Security element and method for producing the same The invention relates to a security element for security papers, bank notes, ID cards or the like, having at least one plastic layer on which at least two metal layers of different color are so disposed side by side and on the same side of the plastic layer that the... | 08/02/2011 |
| 7986459 | Grid image and method for the production thereof The present invention relates to a grating image (12) for depicting at least one unscreened halftone image having multiple brightness levels, the grating image exhibiting multiple grating fields (22-1, 22-2, 22-3) that include in e... | 07/26/2011 |
| 7983414 | Protected cryptographic calculation In a method for protected execution of a cryptographic calculation in which a key with at least two key parameters is drawn on, an integrity check of the key is performed, in order to prevent a cryptographic attack in which conclusions are drawn as to at least one s... | 07/19/2011 |
| 7954700 | Processing device for value documents An apparatus for processing documents of value (12) has a checking device (52) for checking at least one property of a document of value (12) in accordance with at least one predetermined criterion with a sensor device (50), a storage-are... | 06/07/2011 |
| 7950526 | Device and method for carrying out a financial in-payment transaction An apparatus and a method for executing a money deposit transaction. During a money deposit transaction the state of the bank notes to be deposited is ascertained, bank notes being in a good state are made available to the depositor after the completion of the money... | 05/31/2011 |
| 7946499 | Method for initializing and/or personalizng a portable data carrier A method for either or both initializing and personalizing a portable data carrier having an electronic circuit, a data transmission device and a switching device. The method is characterized in that either or both before the initialization and personalization is ca... | 05/24/2011 |