Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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 |
| 5217010 | ECG amplifier and cardiac pacemaker for use during magnetic resonance imaging A device for monitoring a patient or pacing a patient is disclosed which can safely operate in a MRI system. The device uses unique RF filtering and shielding to attenuate voltages on the leads resulting from the high frequency RF signals produced in the ... | 06/08/1993 |
| 5151722 | Video display on spectacle-like frame A head mounted display is disclosed for providing a monocular or binocular wide field of view. The head mounted display contains a unique configuration and unique folding optics so that it can be worn like a pair of spectacles or goggles. The optics and f... | 09/29/1992 |
| 5014715 | Device for measuring the impedance to flow of a natural or prosthetic vessel in a living body A highly automated device to measure the impedance to fluid flow of a vessel by means of direct injection at normal physiologic pressures. The device produces objective impedance data including dynamic impedance, capacitance, and Direct Current resistance... | 05/14/1991 |
| 4870571 | Intercomputer communications based on message broadcasting with receiver selection An apparatus and method of intercomputer communications based on message broadcast with receiver selection is taught. A distributed computer system is described in which each computing element includes a hardware message filter which provides content tag ... | 09/26/1989 |
| 4868524 | RF circuit utilizing a voltage controlled saw oscillator An RF circuit to generate a stable carrier signal using a Voltage Controlled Saw Oscillator (VCSO) is disclosed. The invention teaches the use of a phase lock loop circuit employing a temperature compensated crystal oscillator (TCXO), or similar stable os... | 09/19/1989 |
| 4860756 | Electromagnetic bone healing sensor using a multi-coil sensor array An apparatus and method for non-invasive sensing of bone healing is disclosed. The apparatus and method uses an electromagnetic field to measure impedance changes at and about the bone fracture site during the healing process. The impedance change at the ... | 08/29/1989 |
| 4850372 | Electromagnetic non-invasive measurement and monitoring system for osteoporosis A method for noninvasively sensing bone mass loss associated with osteoporosis is disclosed. The method uses an electromagnetic field to measure impedance (or conductivity) changes in the bone. A decrease in conductivity is indicative of osteoporosis.... | 07/25/1989 |
| 4844076 | Ingestible size continuously transmitting temperature monitoring pill A temperature responsive transmitter is disclosed. The transmitter utilizes a unique circuit design that allows encapsulation in an ingestible size capsule. The inventive circuit design uses a one transistor inverting amplifier with a tank circuit forming... | 07/04/1989 |
| 4827938 | Two-band optical comparator for use with chopped CW singlet oxygen monitor An improved apparatus and method for detecting singlet oxygen emission produced during photoradiation is disclosed. The invention utilizes a two-band optical comparator to detect optical emissions. The optical comparator comprises an in-band filter that p... | 05/09/1989 |
| 4822566 | Optimized capacitive sensor for chemical analysis and measurement An apparatus for detecting the presence and/or measuring the concentration of an analyte in the fluid medium is disclosed. The apparatus relies on biospecific binding between a biochemical binding system and the analyte to change the dielectric properties... | 04/18/1989 |
| 4819648 | Non-invasive electromagnetic technique for monitoring time-trends of physiological changes at a particular location in the brain An apparatus and method for non-invasively sensing physiological changes in the brain is disclosed. The apparatus and method uses an electromagnetic field to measure localized impedance changes in brain matter and fluid. The apparatus and method has parti... | 04/11/1989 |
| 4788656 | Cache memory and pre-processor The invention relates to an apparatus for interfacing between a peripheral device and a host processor. The invented cache memory and pre-processor operates in either an acquisition mode, where it appears to be a memory dedicated to the peripheral, or in ... | 11/29/1988 |
| 4784645 | Apparatus for detecting a condition of a medication infusion system and providing an informational signal in response thereto A medication infusion system having a means for providing an informational signal when (1) medication in the reservoir falls below a threshold level; (2) a fluid leak occurs in different portions of the system; and (3) the intended medication pumping does... | 11/15/1988 |
| 4784660 | Manually actuated hydraulic sphincter having a mechanical actuator An implantable hydraulic urinary sphincter system is disclosed for maintaining continence in those patients unable to control or stop inadvertent urinary flow. The invented apparatus generally consists of an artificial urinary sphincter and a control mean... | 11/15/1988 |
| 4781683 | Single-use, self-annulling injection syringe A single-use, self-annulling syringe is disclosed that is rendered inoperative after a single use without requiring any deliberate action on the part of a user. The injection device uses a hydrophilic expansion plug positioned in the outlet flow channel o... | 11/01/1988 |
| 4768507 | Intravascular stent and percutaneous insertion catheter system for the dilation of an arterial stenosis and the prevention of arterial restenosis This invention is in the field of percutaneous insertion catheters that are used for placing a coil spring stent into a vessel of a living body for the purposes of enhancing luminal dilation, preventing arterial restenosis and preventing vessel blockage r... | 09/06/1988 |
| 4765332 | Pullback atherectomy catheter system An atherectomy apparatus and method is disclosed for the purpose of surgical excision of atheromas which typically consist of plaque deposits that cause narrowing (stenosis) of an artery. The apparatus, called a pullback atherectomy catheter, cuts and col... | 08/23/1988 |
| 4731870 | Platform transmitter terminal (PTT) for use with an ARGOS type satellite system and utilizing a solar array/rechargeable battery power source An improved platform transmitter terminal (PTT) is disclosed for use in an ARGOS type satellite system. The PTT has reduced size, weight and extended life due to a solar array/rechargeable battery power source operating under the supervision of a unique p... | 03/15/1988 |
| 4731083 | Manually actuated hydraulic sphincter An implantable hydraulic urinary sphincter system is disclosed for maintaining continence in those patients unable to control or stop inadvertent urrinary flow. The invented apparatus generally consists of an artificial urinary sphincter and a control mea... | 03/15/1988 |
| 4731051 | Programmable control means for providing safe and controlled medication infusion An implantable programmable infusion pump (IPIP) is disclosed and generally includes: a fluid reservoir filled with selected medication; a pump for causing a precise volumetric dosage of medication to be withdrawn from the reservoir and delivered to the a... | 03/15/1988 |
| 4731756 | Optical storage and switching devices using organic charge transfer salts Optical devices using an organic charge transfer salt as the switching and storage media are disclosed. Generally, a light beam of a given intensity directed to a film of certain organic charge transfer salts causes the illuminated area to change from a f... | 03/15/1988 |
| 4728882 | Capacitive chemical sensor for detecting certain analytes, including hydrocarbons in a liquid medium An apparatus for detecting the concentration of certain analytes, including hydrocarbons, in a liquid medium, is disclosed. The apparatus uses a planar or "open" capacitor containing an active layer. In response to selected analyte in the liquid medium, t... | 03/01/1988 |
| 4720780 | Memory-linked wavefront array processor A Memory-Linked Wavefront Array Processor (MWAP) is disclosed which computes a broad range of signal processing, scientific and engineering problems at ultra-high speed. The memory-linked wavefront array processor is an array of identical programmable pro... | 01/19/1988 |
| 4690149 | Non-invasive electromagnetic technique for monitoring physiological changes in the brain An apparatus and method for non-invasively sensing physiological changes in the brain is disclosed. The apparatus and method uses an electromagnetic field to measure localized impedance changes in brain matter and fluid. Various spatial and temporal techn... | 09/01/1987 |
| 4688580 | Non-invasive electromagnetic technique for monitoring bone healing and bone fracture localization An apparatus and method for non-invasive sensing of bone healing is disclosed. The apparatus and method uses an electromagnetic field to measure impedance changes at the bone fracture site during the healing process. The impedance change at the fracture s... | 08/25/1987 |
| 4684598 | Enhanced optically sensitive medium using organic charge transfer materials to provide reproducible thermal/optical erasure An enhanced optically sensitive medium is disclosed which uses an organic charge transfer complex as the switching material. The organic charge transfer complex includes at least one moiety in an oxidized state. An enhancement mechanism is taught which pr... | 08/04/1987 |
| 4678403 | Liquid level sensor for controlling pump operation The invention concerns a bilge pump control system. Sensing of water level in the bilge is accomplished by the conduction of current (on the order of one milliampere) between two stainless steel probes. The probes are mounted in a triangular package which... | 07/07/1987 |
| 4667192 | Method and apparatus for bus arbitration using a pseudo-random sequence The present invention discloses a second level bus arbitration method and apparatus for use with a distributed computer network. The invention alleviates any simultaneous access possibility by requiring any computing element which claims access to the bus... | 05/19/1987 |
| 4663270 | Multistate optical switching and memory using an amphoteric organic charge transfer material A multistate organic optical storage medium is disclosed, wherein an optical beam can switch any "data storage spot" on said optical storage medium into three or more memory states. The optical storage medium may consist of a mixture of bistate switching ... | 05/05/1987 |
| 4661097 | Method for clearing a gas bubble from a positive displacement pump contained within a fluid dispensing system A method and apparatus for removing gas bubbles from the fluid handling system of a medication infusion system is disclosed. Specifically, the invention discloses a method for removing fluid and/or gas bubbles from fluid reservoir and pumping chamber. The... | 04/28/1987 |
| 4652894 | Electrical organic thin film switching device switching between detectably different oxidation states A current-controlled, bistable threshold or memory switch comprises a polycrystalline metal-organic semiconductor sandwiched between netallic electrodes. Films of either copper or silver complexed with TNAP, DDQ, TCNE, TCNQ, derivative TCNQ molecules, or ... | 03/24/1987 |
| 4627443 | X-ray readable implantable pressure sensor A pressure sensor for measuring pressure of a body at a selected site is provided wherein radiopaque means shift in response to pressure. The body is X-rayed using conventional techniques and the shifting of the radiopaque means is observed to indicate th... | 12/09/1986 |
| 4619653 | Apparatus for detecting at least one predetermined condition and providing an informational signal in response thereto in a medication infusion system A medication infusion system provides redundant safety and includes condition detecting and informational alarm signal generating apparatus for indicating if (1) a fluid leak occurs in different portions of the system; (2) a programmable input from a pati... | 10/28/1986 |
| 4594058 | Single valve diaphragm pump with decreased sensitivity to ambient conditions A single valve diaphragm pump is disclosed which generally includes: a pump housing, a flexible diaphragm reciprocally movable in the pump housing; an inlet filter means; and, an outlet valve. The flexible diaphragm conforms in shape to a portion of the p... | 06/10/1986 |
| 4592361 | Electro-optical device and method for monitoring instantaneous singlet oxygen concentration produced during photoradiation using pulsed excitation and time domain signal processing A method and apparatus is disclosed for optically monitoring the concentration of singlet oxygen produced during photoradiation. A composite optical emission in the 1.27 micron frequency band is detected and electrically processed to separate a first comp... | 06/03/1986 |
| 4576173 | Electro-optical device and method for monitoring instanteous singlet oxygen concentration produced during photoradiation using a CW excitation source A method and apparatus is disclosed for optically monitoring the concentration of singlet oxygen produced during photoradiation. A composite optical emission in the 1.27 micron frequency band is detected and electrically processed to separate a first comp... | 03/18/1986 |
| 4573994 | Refillable medication infusion apparatus Apparatus and method for filling, or refilling, the internal reservoir of a medication infusion system, wherein filling or refilling is permitted only when a means for injecting medication is properly positioned relative to the reservoir. Prior to filling... | 03/04/1986 |
| 4574366 | Optical storage and switching devices using organic charge transfer salts Optical devices using an organic charge transfer salt as the switching and storage media are disclosed. Generally, a light beam of a given intensity directed to a film of certain organic charge transfer salts causes the illuminated area to change from a f... | 03/04/1986 |
| 4571767 | Golf shoe cleat cleaner An apparatus is disclosed for cleaning grass and dirt from golf shoes. The invented apparatus may be carried in a golf bag and can be easily used while the golfer is positioned in an upright standing position. The invented apparatus generally includes: a ... | 02/25/1986 |
| 4571749 | Manually actuated hydraulic sphincter An implantable hydraulic urinary sphincter system is disclosed for maintaining continence in those patients unable to control or stop inadvertent urinary flow. The invented apparatus generally consists of an artificial urinary sphincter and a control mean... | 02/25/1986 |
