Famous Patents
In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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 |
| 8089633 | Test method for surface figure of large convex mirrors A method of testing a convex mirror surface figure in which an optical quality substrate material is used having a convex front surface and a rear surface polished to a precise optical figure to create a lens. The lens is then tested by a standard interferometric or... | 01/03/2012 |
| 8059122 | Cartesian mesh generation technique A highly accurate and robust cubic cell mesh generator “Cubegen” capable of a trillion plus cell meshes on a single processor 4-Gigabyte main memory workstation has been developed. The cells are generated in Yee format for the Finite Difference Time Domain metho... | 11/15/2011 |
| 8041161 | Adaptive photonic coupler A method to maximize the coupling efficiency between a collimated, free-space optical signal and a fiber optic waveguide using an active optical element to steer and focus the collimated beam driven by an adaptive controller that periodically auto-calibrates the act... | 10/18/2011 |
| 7941978 | Deployable heirarchical structure A collapsible and deployable hierarchical open lattice assembly comprised of hinge boxes of 12 battens connected by hinge nodes. The hinge nodes are made of a plurality of resilient flexure joints, each joint connected to a batten and giving said batten a 90-degree ... | 05/17/2011 |
| 7934685 | Methods to actively protect spacecraft from damage due to collision with ions A technique whereby one or more conducting plates electrically-biased negatively with respect to a spacecraft's electrical potential and insulated from the spacecraft surface are located around the spacecraft surface whereby contaminant ions in a plasma surrounding ... | 05/03/2011 |
| 7895795 | Triangular rollable and collapsible boom An elastic space-deployable boom of carbon fiber reinforced plastic or other resilient material having an open substantially triangular cross-section when deployed and stowed with a flattened cross-section about a circular hub. ... | 03/01/2011 |
| 7841653 | Infant carrier support A belt mounted infant carrier support device comprising a belt clip, an attached upward projecting hook-like protrusion upon which the lip of an infant carrier rests and a support cross member below the hook. ... | 11/30/2010 |
| 7822314 | Segmented acoustic core photonic crystal fiber laser Stimulated Brillouin scattering (SBS) in a photonic crystal fiber is suppressed by doping the individual core segments such that the Brillouin frequency of each segment is sufficiently different from the neighboring segments that Brillouin scattered light from one c... | 10/26/2010 |
| 7796326 | Apparent incoherence method A method and system whereby a narrow linewidth coherent laser source when transmitted as a plurality of output signals and subsequently detected at a distance appears to produce the uniform illumination characteristics of an incoherent source thereby suppressing las... | 09/14/2010 |
| 7786438 | Sensor assemblies using redundant two-dimensional detector arrays A sensor assembly that replaces a single focal plane array detector with two focal plane array detectors orientated with respect to each other such that a power splitter divides an incoming light source equally between each detector. The two detectors are selected s... | 08/31/2010 |
| 7764720 | Multi-tone driven high-power narrow-linewidth rare earth doped fiber amplifier A method to increase the output power of narrow-linewidth rare earth-doped fiber amplifiers by suppressing simulated Brillouin scattering. The fiber amplifier is seeded with two or more lasers having frequencies and input powers that are sufficiently different. The ... | 07/27/2010 |
| 7661469 | Synchronized thermal management method A method of cooling a plurality of devices operated in parallel and heated by relatively long duration pulses using a single coolant flow channel to the devices in series that transports the heat from the several devices in a contiguous series of heat pulses to the ... | 02/16/2010 |
| 7639722 | Multifaceted prism to cause the overlap of beams from a stack of diode laser bars An optical element for homogenizing and, possibly, concentrating the output from high-power two-dimensional semiconductor laser arrays, which has the basic shape of a convex-flat cylindrical lens with a facet cut into the convex surface for each individual semicondu... | 12/29/2009 |
| 7637461 | Approaches to actively protect spacecraft from damage due to collisions with ions A method whereby one or more conducting plates electrically-biased negatively with respect to a spacecraft's electrical potential and insulated from the spacecraft surface are located around the spacecraft surface whereby contaminant ions in a plasma surrounding the... | 12/29/2009 |
| 7617639 | Tape-spring deployable boom A self-deployable, monolithic, open-lattice frame structure of resilient, tape-spring members. The structure is comprised of three or more longitudinal prismatic tape-spring members (longerons) and non-prismatic tape-spring members (battens) that are connected trans... | 11/17/2009 |
| 7489847 | Optical fiber with tunable birefringence using pressurized liquid capillaries A single-mode optical fiber segment incorporating liquid-filled holes parallel to the core that are sealed at each end. Heating the liquid produces stress in the fiber and thereby increases the birefringence level. Alternatively the holes may be filled and sealed at... | 02/10/2009 |
| 7486758 | Combined plasma source and liner implosion system A novel arrangement that combines in a single compact embodiment a plasma flow switch source of ultrahigh speed plasma and an electromagnetically-imploded cylindrical shell. The shell, known as a liner, forms the wall of a cavity that receives and stagnates the plas... | 02/03/2009 |
| 7469001 | Mid-IR optically pumped semiconductor laser A waveguide mode isolation layer added between the active region and the heat sink bonding material of an optically pumped semiconductor laser isolates the optical mode from the bonding material. ... | 12/23/2008 |
| 7469002 | Mid-infrared optically pumped unstable resonator laser A high-powered mid-IR antimonide-based unstable resonator semiconductor laser that is optically pumped. One Fabry-Perot facet is a mechanically polished cylindrical mirror that extends well into the GaSb substrate. The waveguide is designed to weakly confine the tra... | 12/23/2008 |
| 7459403 | Method for reducing device and circuit sensitivity to electrical stress and radiation induced aging In microelectronic circuits involving dielectric/semiconductor interfaces having interstitial sites in the dielectric, a method for hardening these interfaces by introducing a small atomic diameter inert gas into the interstitial sites. ... | 12/02/2008 |
| 7453917 | Supersonic all gas-phase iodine laser A continuous wave laser based on the electronic I*(2P½)−I(2P 3/2) transition of atomic iodine at 1.315 microns from the NCl(a1Δ)+I(2P 3/2) energy transfer reaction using a transverse fl... | 11/18/2008 |
| 7354033 | Tape-spring deployable hinge A tape-spring shaped, articulating member used in deployable structures having a resilient, compliant hinge region and rigid non-hinge regions, thereby enabling a smaller fold radius and greater packaging efficiency. The increased compliance in the hinge region may ... | 04/08/2008 |
| 7336858 | In-fiber optical isolator for high-power operation An in-fiber optical isolator for high-power operation using two kinds of fiber, not including the active fiber where laser gain occurs. A hi-birefringence passive fiber with a tilted Bragg grating is connected to the active fiber at one end with the connection regio... | 02/26/2008 |
| 7318270 | Method for producing a full wave bridge rectifier suitable for low-voltage, high-current operation A method for producing center-tapped and non-center-tapped full wave bridge rectifiers suitable for low-voltage high-current operation by simultaneously winding a plurality of identical secondary coil sections around a primary coil using on a prearranged secondary f... | 01/15/2008 |
| 7301508 | Optimization of near field antenna characteristics by aperture modulation The approximate radius of curvature of the spherical phase front at the aperture of a transmitting microwave antenna is controlled by an inner section of the aperture attached to the outer section of the aperture by a small number of programmable transducers, thereb... | 11/27/2007 |
| 7295164 | Control of the fresnel maximum of an aperture antenna The maximum peak power density of an aperture antenna that occurs in the near field region relative to the average power density concentration at other ranges within the entire near field is increased by lowering the aspect ratio of the aperture antenna, whereby the... | 11/13/2007 |
| 7252297 | Safety welding cart A safety welding cart structure having a metal box for holding pressurized gas cylinders, a firewall separating the cylinders, individual clamping devices to secure the cylinders, and shelves extending from the back of the box forming a cart set upon a four-wheeled ... | 08/07/2007 |
| 7245082 | Mode seeding cathode for a relativistic magnetron A high-power relativistic magnetron wherein the cathode geometry is shaped to form a DC electric field that has a non-negligible azimuthal component causing preferential selection of the pi mode at startup (suppression of mode competition), a significant increase in... | 07/17/2007 |
| 7234663 | Bubble cloud acoustic damping for launch vehicle fairing A launch vehicle payload fairing incorporating hollow cavities filled with an aerated fluid for the reduction of acoustic noise during launch. The fairing may also include a fluid ejection system for subsequent weight reduction. ... | 06/26/2007 |
| 7233433 | Self-reference locking of optical coherence by single-detector electronic-frequency tagging A coherent laser beam combining system wherein the output of a single master oscillator is split into a plurality of signals, the signals are electronically modulated at unique frequencies. One signal is designated a reference signal while the remaining signals are ... | 06/19/2007 |
| 7187492 | Self-referenced locking of optical coherence by single-detector electronic-frequency tagging A coherent laser beam combining system wherein the output of a single master oscillator is split into a plurality of signals, the signals are electronically modulated at unique frequencies. One signal is designated a reference signal while the remaining signals are ... | 03/06/2007 |
| 7171091 | Tuned cladding fiber amplifier and laser Single transverse mode fiber amplifier and laser operation is obtained with a multi-mode signal core surrounded by cladding containing irregular microstructuring that causes loss in all of the core modes except the fundamental while maintaining robust guiding of the... | 01/30/2007 |
| 7142757 | Large flattened mode tuned cladding photonic crystal fiber laser and amplifier A modified photonic crystal fiber yielding a higher peak power for a given maximum intensity. The multi-mode signal core has a depressed index of refraction that pushes the mode distribution to the core edges while a pattern of larger air holes is used to flatten th... | 11/28/2006 |
| 7058098 | Self-synchronous locking of optical coherence by single-detector electronic-frequency tagging A coherent laser beam combining system wherein the output of a single master oscillator is split into a plurality of N signals, and the N signals are electronically modulated at unique frequencies. There is no reference signal and all of the signals are passed throu... | 06/06/2006 |
| H2128 | Radiation hardened microcircuits A method of radiation hardening microcircuits including the steps of removing hydrogen from the microcircuit in a vacuum furnace and annealing in deuterium-containing forming gas. ... | 10/04/2005 |
| 6928758 | Trenching tool A trenching tool attachable to the bucket of a front-end loader that is pushed through the soil parallel to the surface having an inclined plate to guide the soil into the bucket. ... | 08/16/2005 |
| 6856080 | Carbonized resin coated anode A vacuum tube having its anode/collector coated with carbonized resin plus pyrocarbon material to reduce out-gassing and secondary electron emission and the method of coating the anode/collector. ... | 02/15/2005 |
| 6836783 | Finite-difference solver based on field programmable interconnect devices A method for solving a wide variety of linear partial differential equations by exploiting the normally undesirable parasitic resistances present in flexible digital switching components. The terminal relationships of these field programmable interconnect devices ca... | 12/28/2004 |
| 6775383 | Adaptive vibro-acoustic attentuator for launch vehicles A lightweight self-contained vibro-acoustic device is disclosed for dissipating low frequency vibration and acoustic energy within the payload fairing of launch vehicles. The device can be mounted on the interior surfaces of a fairing and adaptively tuned to match t... | 08/10/2004 |
| 6752502 | Parabolic membrane mirror having a shape-restorative force An optical quality, freestanding, compliant membrane mirror is cast with a concave parabolic shape, and includes a substrate and a reflective stress coating. The stress coating is in compression and applies a tensile shear stress to the substrate that opposes and of... | 06/22/2004 |
