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 |
| 6697476 | Audio conference platform system and method for broadcasting a real-time audio conference over the internet An audio conferencing system comprises an audio conference mixer that receives digitized audio signals and sums a plurality of the digitized audio signals containing speech to provide a summed conference signal. A transcoder receives and transcodes the su... | 02/24/2004 |
| 6684275 | Serial-to-parallel/parallel-to-serial conversion engine A serial-to-parallel/parallel-to-serial conversion engine provides a bi-directional interface between a serial TDM highway and a parallel TDM highway. The conversion engine includes a serial-to-parallel data conversion device receives a serially received ... | 01/27/2004 |
| 6675077 | Wheel-railhead force measurement system and method having cross-talk removed A system and method for removing cross-talk in measured forces between a railway wheel set and the railhead of underlying track such as found in angle of attack measurements for shallow curvature track. The angle of attack for the leading and trailing set... | 01/06/2004 |
| 6668821 | Laryngeal mask airway A laryngeal mask airway has a curved tubular guide for insertion through the patient's mouth and oropharynx. After insertion of the guide, the beveled distal opening of the guide abuts the laryngeal inlet, while the guide's proximal opening remains outsid... | 12/30/2003 |
| 6666765 | Casino game and method having a hint feature During operation of a casino game, a hint feature is displayed with a displayed decision-making game round under control of a processor. A memory may store a plurality of decision-making game rounds. A hint contains response information for a player to in... | 12/23/2003 |
| 6657975 | Large-scale, fault-tolerant audio conferencing over a hybrid network An audio conferencing method in a hybrid network. Input from a plurality of endpoints connected to an audio conference in the hybrid network is received in a media gateway. The media gateway converts the input to an MCU-usable format and selects input bas... | 12/02/2003 |
| 6656048 | Controller-based linked gaming machine bonus system A method for providing bonus jackpot payoffs during a bonus mode time period in a system of linked gaming machines interconnected to a controller. Eligible gaming machines are determined at the time the bonus time period starts. Once the bonus mode time p... | 12/02/2003 |
| 6648759 | Gaming machines with bonusing A method is set forth for playing a bonus game in a secondary slot machine adjacent a primary slot machine. The primary slot machine issues a bonus qualifying signal to the secondary slot machine to start play of a bonus game when a bonus qualifying event... | 11/18/2003 |
| 6646997 | Large-scale, fault-tolerant audio conferencing in a purely packet-switched network A method of large-scale fault-tolerant audio conferencing in an audio conferencing system using a purely packet-switched network. An endpoint places a call to a conference gatekeeper indicating an audio conference. The conference gatekeeper determines whe... | 11/11/2003 |
| 6645071 | Casino bonus game using player strategy A virtual matrix comprised of a plurality of grid elements is provided, on which a hidden pattern, comprised of a plurality of matrix entries, is randomly placed. A player views a gaming matrix having a plurality of visible positions, each visible positio... | 11/11/2003 |
| 6634354 | Laryngeal mask airway A laryngeal mask airway has a curved tubular guide for insertion through the patient's mouth and oropharynx. After insertion of the guide, the beveled distal opening of the guide abuts the laryngeal inlet, while the guide's proximal opening remains outsid... | 10/21/2003 |
| 6631713 | Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube An endotracheal tube can be inserted into a patient's trachea during resuscitation by using a face mask and a curved guide. The guide is inserted through a flexible port in the face mask and has a curved distal portion that extends into the patient's mout... | 10/14/2003 |
| 6632297 | Railway wheels resistant to martensite transformation Steels having a pearlitic structure and containing 0.60 to 1.0 weight percent carbon, 1.1 to 3.0 weight percent silicon, 0.45 to 0.85 weight percent manganese, less than 0.050 weight percent sulfur and less than 0.050 weight percent phosphorus, with the r... | 10/14/2003 |
| 6625271 | Scalable audio conference platform An audio conferencing platform includes data bus (e.g., a time division multiplex (TDM) bus), a controller, and an interface circuit that receives audio signals from a plurality of conference participants and provides digitized audio signals in assigned t... | 09/23/2003 |
| 6612947 | Radio transmitter assembly for tracking an arrow A radio transmitter assembly for use in tracking an arrow employs an insert containing a radio transmitter that can inserted through the open end of an arrow and into the interior of the arrow shaft. After the insert has been secured within the arrow shaf... | 09/02/2003 |
| 6613286 | Apparatus for testing liquid/reagent mixtures An apparatus for detecting changes in a property of a liquid/reagent mixture comprises a cartridge having a fluid receiving/dispensing reservoir, one or more fluid-receiving chambers, one or more conduit(s) that permit(s) fluid communication between the f... | 09/02/2003 |
| 6609971 | Prolonged casino game method and apparatus A casino game and method having at least one hidden attribute for each of a finite number of icons and at least one additional hidden attribute for at least one of the finite number of icons. An initial number of player's picks known to the player are pro... | 08/26/2003 |
| 6610160 | Method for resurfacing a ceiling tile A method for encasing a ceiling tile. The back surface of the ceiling tile is positioned adjacent to a vacuum table and a facing is placed over the front surface of the ceiling tile so that the facing overlaps each edge about the perimeter of the ceiling ... | 08/26/2003 |
| 6607195 | Betting bystander method and apparatus A method for playing a base and bonus live card games with side betting. A video board is used for bonus game play if a predetermined arrangement of cards is dealt in the base game. When a player gets the predetermined arrangement the player can play the ... | 08/19/2003 |
| 6607683 | Methods and apparatus for producing manufactured articles having natural characteristics A method is described comprising the steps of modifying a natural article to a predetermined configuration, making a mold of at least part of the modified natural article, filling the mold with a castable material to produce a reproduction of at least par... | 08/19/2003 |
| 6604943 | Orthodontic appliance A method and apparatus for orthodontic treatment employs a cast mass-type appliance with a labial bow and combinations of labial and lingual springs to produce multiple coupled forces on selected teeth. The lingual spring has a stem embedded in the applia... | 08/12/2003 |
| 6586028 | Method for steam flaking grain A method steam flaking grain comprises the steps of providing grain, passing the grain through a steam chest at a predetermined temperature and pressure for a predetermined time, flaking the grain between two rotating corrugated rollers having a gap, samp... | 07/01/2003 |
| 6585642 | Endoscope with a removable suction tube An endoscope has a removable suction tube to facilitate cleaning and reduce the risk of patient infection. The endoscope includes an elongated flexible probe with a housing at its proximal end to control the direction and operation of the probe and for vi... | 07/01/2003 |
| 6581402 | Method and plate apparatus for dew point evaporative cooler An improved method and apparatus for indirect evaporative cooling of a fluid stream to substantially its dew point temperature. Plate heat exchanger has perforations 11 and channels 3, 4 and 5 for gas or a low temperature for liquids on a dry side and wet... | 06/24/2003 |
| 6568393 | Endotracheal tube having a beveled tip and orientation indicator An endotracheal tube has a beveled distal end with a tip on the posterior wall of the endotracheal tube, and a visual indicator extending along the endotracheal tube. The visual indicator can be a radio-opaque stripe extending the length of the anterior a... | 05/27/2003 |
| 6568682 | Maximum bet table game method and apparatus A methods of and apparatus for playing table card games are provided wherein with multi token maximum level betting and displayed rankings of winning hands return enhanced pay out. A pay table matrix listing has the enhanced payments for ranked hands. The... | 05/27/2003 |
| 6568388 | Method and apparatus for ventilation / oxygenation during guided insertion of an endotracheal tube A method and apparatus for guiding insertion of an endotracheal tube into a patient's trachea simultaneously allows a continued supply of air/oxygen to be delivered into the patient's airway and lungs. A guide having a curved distal portion is inserted in... | 05/27/2003 |
| 6565088 | Poker dice casino game method of play A method for playing a stand-alone and a bonus casino poker dice having X dice, each of the X dice having F faces with a different symbol thereon so as to form a set {S} of symbols on each of the X dice. The method of the present invention includes the st... | 05/20/2003 |
| 6561899 | Method for casino game A method of playing a casino game by a player for monetary reward has steps including offering the player a plurality of choices, each of which has a probability of success and associated award. The method allows the player to make a choice and awards the... | 05/13/2003 |
| 6560312 | Medical uses of focused and imaged X-rays The present invention provides methods and instruments for focusing and imaging x-rays using grazing incidence optics and medical and microscopic uses thereof.... | 05/06/2003 |
| 6554283 | Apportionment of casino game bonus pay out A method of house apportionment of a bonus value during bonus casino game play, entry for which occurs during play of an underlying game of chance. A method of house apportionment awards the player a portion of the bonus value for the bonus game and adds ... | 04/29/2003 |
| 6547664 | Cashless method for a gaming system A cashless peripheral method interfacing with a gaming system. The gaming system issues a "cash-out" signal when a player quits playing and receives a "cash-in" signal when a player desires to play a game in the gaming system. A stack of unprinted tickets... | 04/15/2003 |
| 6543446 | Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube An endotracheal tube can be inserted into a patient's trachea during resuscitation by using a face mask and a curved guide. The guide is inserted through a flexible port in the face mask and has a curved distal portion that extends into the patient's mout... | 04/08/2003 |
| 6530864 | Apparatus for removably interfacing a bicycle to a computer An apparatus enables a conventional bicycle to be interfaced to a computer to serve as a controller for electronic games and the like. The apparatus includes a rear wheel support that removably holds the bicycle in an upright position while allowing rotat... | 03/11/2003 |
| 6517073 | Betting bystander method and apparatus A method and equipment for playing a base and bonus games with side betting. A video board is used for bonus play if a predetermined arrangement of cards results in the base game. Side wagers allow bettors to win of the bonus with random selection. If a p... | 02/11/2003 |
| 6514316 | System for improving the maximum operating temperature and lifetime of chromatographic columns Capillary column oxidation in gas chromatography systems, particularly of polyimide clad columns, is a major cause of column failure and it limits the maximum temperature at which columns can be used. A gas chromatography column oven system is described w... | 02/04/2003 |
| 6500156 | Thumb-powered flushing device for catheters A catheter flushing device includes a chamber covered with a movable member (e.g., a flexible diaphragm) that can be compressed by exertion of pressure on the diaphragm; and a valve having a first position allowing fluid from a fluid source to fill the ch... | 12/31/2002 |
| 6496499 | Control system and associated method for coordinating isochronous devices accessing a wireless network A wireless network having a radio frequency access point and a plurality of isochronous devices wirelessly connected to the radio frequency access point. Each of the isochronous devices receives information from the radio frequency access point including ... | 12/17/2002 |
| 6481036 | Modular cable protector having removable wheel chair ramps A modular cable bridging assembly has a cable protector with side ramps, and a series of channels extending between its ends to receive cables or the like. End connectors enable the cable protectors to be attached together in series to any desired length.... | 11/19/2002 |
| 6483646 | Detachable monocular display The present invention is an apparatus for monocular head displays, which enables a compact, light in weight, sturdy apparatus that has a wide angle of viewing, a bright and sharp image display that operates on low voltage in a wide range of temperatures. ... | 11/19/2002 |
