Quotables
"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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 |
| 5270548 | Phase-sensitive flow cytometer A phase-sensitive flow cytometer (FCM) provides additional FCM capability to use the fluorescence lifetime of one or more fluorochromes bound to single cells to provide additional information regarding the cells. The resulting fluorescence emission can be... | 12/14/1993 |
| 5227042 | Catalyzed enzyme electrodes An enzyme electrode is prepared with a composite coating on an electrical conductor. The composite coating is formed from a casting solution of a perfluorosulfonic acid polymer, an enzyme, and a carbon supported catalyst. The solution may be cast directly... | 07/13/1993 |
| 5212588 | Reflective optical imaging system for extreme ultraviolet wavelengths A projection reflection optical system has two mirrors in a coaxial, four reflection configuration to reproduce the image of an object. The mirrors have spherical reflection surfaces to provide a very high resolution of object feature wavelengths less tha... | 05/18/1993 |
| 5209834 | Ordered transport and identification of particles A method and apparatus are provided for application of electrical field gradients to induce particle velocities to enable particle sequence and identification information to be obtained. Particle sequence is maintained by providing electroosmotic flow for... | 05/11/1993 |
| 5208332 | Optical probe for the cytochrome P-450 cholesterol side chain cleavage enzyme An optical probe enables the study of enzyme activity by absorbance spectroscopy or by sensitive fluorescence methods. In particular, the probe provides the ability to monitor the activity of cytochrome P-450scc enzyme, the rate limiting enzyme... | 05/04/1993 |
| 5200933 | High resolution data acquisition A high resolution event interval timing system measures short time intervals such as occur in high energy physics or laser ranging. Timing is provided from a clock (38) pulse train (37) and analog circuitry (44) for generating a triangular wave (46) synch... | 04/06/1993 |
| 5200578 | High voltage feedthrough bushing A feedthrough bushing for a high voltage diode provides for using compression sealing for all sealing surfaces. A diode assembly includes a central conductor extending through the bushing and a grading ring assembly circumferentially surrounding and coaxi... | 04/06/1993 |
| 5192155 | Magnetic gripper device A climbing apparatus is provided for climbing ferromagnetic surfaces, such as storage tanks and steel frame structures. A magnet assembly is rotatably mounted in a frame assembly. The frame assembly provides a pair of cam surfaces having different dimensi... | 03/09/1993 |
| 5191594 | Fading channel simulator Fading channel effects on a transmitted communication signal are simulated with both frequency and time variations using a channel scattering function to affect the transmitted signal. A conventional channel scattering function is converted to a series of... | 03/02/1993 |
| 5185260 | Method for distinguishing normal and transformed cells using G1 kinase inhibitors A G1 phase kinase inhibitor is applied in a low concentration to a population of normal and transformed mammalian cells. The concentration of G1 phase kinase inhibitor is selected to reversibly arrest normal mammalian cells in the G | 02/09/1993 |
| 5181016 | Micro-valve pump light valve display A flat panel display incorporates a plurality of micro-pump light valves (MLV's) to form pixels for recreating an image. Each MLV consists of a dielectric drop sandwiched between substrates, at least one of which is transparent, a holding electrode for ma... | 01/19/1993 |
| 5172554 | Superfluid thermodynamic cycle refrigerator A cryogenic refrigerator cools a heat source by cyclically concentrating and diluting the amount of 3 He in a single phase 3 He-4 He solution. The 3 He in superfluid 4 He acts in a manner of an ideal ... | 12/22/1992 |
| 5165243 | Compact acoustic refrigerator A compact acoustic refrigeration system actively cools components, e.g., electrical circuits (22), in a borehole environment. An acoustic engine (12, 14) includes first thermodynamic elements (12) for generating a standing acoustic wave in a selected medi... | 11/24/1992 |
| 5150617 | Magnetostrictive resonance excitation The resonance frequency spectrum of a magnetostrictive sample is remotely determined by exciting the magnetostrictive property with an oscillating magnetic field. The permeability of a magnetostrictive material and concomitant coupling with a detection co... | 09/29/1992 |
| 5144193 | High field pulsed microwiggler comprising a conductive tube with periodically space slots A microwiggler assembly produces large magnetic fields for oscillating ched particle beams, particularly electron beams for free electron laser (FEL) application. A tube of electrically conductive material is formed with radial slots axially spaced at th... | 09/01/1992 |
| 5130701 | Digital color representation An image population having a large number of attributes is processed to form a display population with a predetermined smaller number of attributes which represent the larger number of attributes. In a particular application, the color values in an image ... | 07/14/1992 |
| 5126700 | Phase stable RF transport system An RF transport system delivers a phase-stable RF signal to a load, such as an RF cavity of a charged particle accelerator. A circuit generates a calibration signal at an odd multiple frequency of the RF signal where the calibration signal is superimposed... | 06/30/1992 |
| 5125076 | System for routing messages in a vertex symmetric network by using addresses formed from permutations of the transmission line indicees A network of interconnected processors is formed from a vertex symmetric graph selected from graphs .GAMMA.d (k) with degree d, diameter k, and (d+1)!/(d-k+1)! processors for each dࣙk and .GAMMA.d (k,-1) with degree 3-1, diameter k... | 06/23/1992 |
| 5110725 | Optical probe for the cytochrome P-450 cholesterol side chain cleavage enzyme An optical probe enables the study of enzyme activity by absorbance spectroscopy or by sensitive fluorescence methods. In particular, the probe provides the ability to monitor the activity of cytochrome P-450scc enzyme, the rate limiting enzyme... | 05/05/1992 |
| 5108573 | Morphology in electrochemically grown conducting polymer films A conducting polymer film with an improved space filling is formed on a metal electrode surface. A self-assembling monolayer is formed directly on the metal surface where the monolayer has a first functional group that binds to the metal surface and a sec... | 04/28/1992 |
| 5103186 | Tandem betatron Two betatrons are provided in tandem for alternately accelerating an electron beam to avoid the single flux swing limitation of conventional betatrons and to accelerate the electron beam to high energies. The electron beam is accelerated in a first betatr... | 04/07/1992 |
| 5084378 | Enhanced detection of fluorescence quenching in labeled cells A method is provided for quantifying BrdU labeled DNA in cells. The BrdU is incorporated into the DNA and the DNA is stained with a first fluorochrome having a fluorescence which is quenchable by BrdU. The first fluorochrome is preferably a thymidine base... | 01/28/1992 |
| 5082550 | Enzyme electrochemical sensor electrode and method of making it An electrochemical sensor electrode is formed from an electronic conductor coated with a casting solution containing a perfluorosulfonic acid ionomer and a selected enzyme. The selected enzyme catalyzes a reaction between a predetermined substance in a so... | 01/21/1992 |
| 5079469 | Piezonuclear battery A piezonuclear battery generates output power arising from the piezoelectric voltage produced from radioactive decay particles interacting with a piezoelectric medium. Radioactive particle energy may directly create an acoustic wave in the piezoelectric m... | 01/07/1992 |
| 5064948 | Chromosome specific repetitive DNA sequences A method is provided for determining specific nucleotide sequences useful in forming a probe which can identify specific chromosomes, preferably through in situ hybridization within the cell itself. In one embodiment, chromosome preferential nucleotide se... | 11/12/1991 |
| 5062296 | Resonant ultrasound spectroscopy A resonant ultrasound spectroscopy method provides a unique characterization of an object for use in distinguishing similar objects having physical differences greater than a predetermined tolerance. A resonant response spectrum is obtained for a referenc... | 11/05/1991 |
| 5063019 | Nuclear reactivity control using laser induced polarization A control element for reactivity control of a fission source provides an atomic density of 3 He in a control volume which is effective to control criticality as the 3 He is spin-polarized. Spin-polarization of the 3 He aff... | 11/05/1991 |
| 5043574 | Neutral particle beam sensing and steering The direction of a neutral particle beam (NPB) is determined by detecting Ly radiation emitted during motional quenching of excited H(2S) atoms in the beam during movement of the atoms through a magnetic field. At least one detector is placed adjac... | 08/27/1991 |
| 5030850 | Off-set stabilizer for comparator output A stabilized off-set voltage is input as the reference voltage to a comparator. In application to a time-interval meter, the comparator output generates a timing interval which is independent of drift in the initial voltage across the timing capacitor. A ... | 07/09/1991 |
| 5019832 | Nested-cone transformer antenna A plurality of conical transmission lines are concentrically nested to form n output antenna for pulsed-power, radio-frequency, and microwave sources. The diverging conical conductors enable a high power input density across a bulk dielectric to be reduced... | 05/28/1991 |
| 4982320 | Adaptive control for accelerators An adaptive feedforward control loop is provided to stabilize accelerator beam loading of the radio frequency field in an accelerator cavity during successive pulses of the beam into the cavity. A digital signal processor enables an adaptive algorithm to ... | 01/01/1991 |
| 4976911 | Nuclear reactivity control using laser induced polarization A control element for reactivity control of a fission source provides an atomic density of 3 He in a control volume which is effective to control criticality as the 3 He is spin-polarized. Spin-polarization of the 3 He aff... | 12/11/1990 |
| 4973530 | Fuel cell water transport The moisture content and temperature of hydrogen and oxygen gases is regulated throughout traverse of the gases in a fuel cell incorporating a solid polymer membrane. At least one of the gases traverses a first flow field adjacent the solid polymer membra... | 11/27/1990 |
| 4968142 | Closed inductively coupled plasma cell A closed inductively coupled plasma cell generates a relatively high power, low noise plasma for use in spectroscopic studies. A variety of gases can be selected to form the plasma to minimize spectroscopic interference and to provide a electron density a... | 11/06/1990 |
| 4962317 | Confined energy distribution for charged particle beams A charged particle beam is formed to a relatively larger area beam which is well-contained and has a beam area which relatively uniformly deposits energy over a beam target. Linear optics receive an accelerator beam and output a first beam with a first wa... | 10/09/1990 |
| 4958921 | Light-driven phase shifter A light-driven phase shifter is provided for modulating a transmission light beam. A gaseous medium such as argon is provided with electron energy states excited to populate a metastable state. A tunable dye laser is selected with a wavelength effective t... | 09/25/1990 |
| 4953366 | Acoustic cryocooler An acoustic cryocooler with no moving parts is formed from a thermoacoustic driver (TAD) driving a pulse tube refrigerator (PTR) through a standing wave tube. Thermoacoustic elements in the TAD are spaced apart a distance effective to accommodate the incr... | 09/04/1990 |
| 4949348 | Blue-green upconversion laser A blue-green laser (450-550 nm) uses a host crystal doped with Tm3+. The Tm+ is excited through upconversion by a red pumping laser and an IR pumping laser to a state which transitions to a relatively lower energy level through emis... | 08/14/1990 |
| 4947480 | Multichannel signal enhancement A mixed adaptive filter is formulated for the signal processing problem where desired a priori signal information is not available. The formulation generates a least squares problem which enables the filter output to be calculated directly from an input d... | 08/07/1990 |
| 4939419 | RFQ accelerator tuning system A cooling system is provided for maintaining a preselected operating temperature in a device, which may be an RFQ accelerator, having a variable heat removal requirement, by circulating a cooling fluid through a cooling system remote from the device. Inte... | 07/03/1990 |
