Bizarre Patents
A Christmas stocking having illumination means associated therewith for signalling the arrival of Santa Claus.
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 |
| 4952019 | Grating-coupled surface-emitting superluminescent device A superluminescent diode has one end coupled to a DBR having a grating and the other end has a reflective coating. A broadlight spectrum is emitted for reduced speckle interference and phase noise when used in applications such as a gyroscope. The diode c... | 08/28/1990 |
| 4942366 | Amplifier device with coupled surface emitting grating A surface emitting grating is coupled to an optical amplifier and has grating elements tilted non-normal relative to the amplifier optical axis. The angle of tilt in one embodiment is such that the grating reflections are refracted out of the amplifier re... | 07/17/1990 |
| 4937467 | Complementary circuit and structure with common substrate A circuit in accordance with the invention has a complementary pair of a MISFET and a COMFET with their drains connected together. This allows fabrication on a single substrate for greater reliability and reduced cost. The circuit can be used in a full or... | 06/26/1990 |
| 4933904 | Dense EPROM having serially coupled floating gate transistors A compact memory has a plurality of memory cells that are serially coupled. The plurality of cells are capacitively coupled to a substrate and directly coupled to switching circuits at both of its ends, which can disconnect the plurality of cells from a b... | 06/12/1990 |
| 4927359 | Fluid distribution apparatus A two-stage gas distribution nozzle for a muffle furnace includes an inner pipe with spaced apertures for feeding gas at spaced intervals to an outer pipe enclosing the inner pipe. The outer pipe includes spaced apertures facing in a direction such that t... | 05/22/1990 |
| 4926236 | Multilayer interconnect and method of forming same A multilayer interconnect and method of forming the same between first and second overlying conductive strips separated by an insulating layer having an aperture therethrough. The improvement wherein at least one edge of the first strip is aligned with an... | 05/15/1990 |
| 4920491 | Enhancement of image quality by utilization of a priori information The quality of incomplete data Non-Destructive Evaluation and Computed Tomography images is improved by incorporating a priori information into the image reconstruction and image processing to supplement the available data. The a priori information is pro... | 04/24/1990 |
| 4918508 | Vertical photoconductive detector A photoconductive detector comprises a substrate layer of semiconductor material of a first conductivity type substantially transparent of light at the wavelength to be detected and doped sufficiently to provide ohmic contact to the photoconductive active... | 04/17/1990 |
| 4918498 | Edgeless semiconductor device A semiconductor device comprising an island of semiconductor material disposed on an insulating substrate is disclosed. A MOS transistor is formed in the semiconductor material, but the gate electrode does not extend over any sidewall of the silicon islan... | 04/17/1990 |
| 4918427 | Multi-level tool break detection using multi-mode sensing A system and method for monitoring machine tool operations provides a multi-level tool break alarm and uses information from multiple sensors of different types. Signal processing and pattern recognition logic techniques are applied to a cutting process h... | 04/17/1990 |
| 4911170 | High frequency focused ultrasonic transducer for invasive tissue characterization A broadband 25 to 50 MHz spherically focused ultrasonic transducer is placed on the tip of a catheter such that ultrasonic images of arteries and plaque are produced by introducing the catheter into arteries of patients. The high frequency transducer has ... | 03/27/1990 |
| 4910563 | Complementary circuit and structure with common substrate A circuit in accordance with the invention has a complementary pair of a MISFET and a COMFET with their drains connected together. This allows fabrication on a single substrate for greater reliability and reduced cost. The circuit can be used in a full or... | 03/20/1990 |
| 4903094 | Memory cell structure having radiation hardness A memory cell structure has a thin insulating oxide barrier layer between an insulating body, such as sapphire, and a conducting layer, such as polysilicon, to prevent photoconduction between the body and the layer. Upper and lower conducting layers form ... | 02/20/1990 |
| 4899347 | Solid state laser gain medium with diamond coating A laser gain medium has a diamond coating in order to strengthen it and reduce parasitic oscillations. The medium can be a slab with chamfered corners with the coating on the edge faces and the corners, or a rod with the coating going all the way around i... | 02/06/1990 |
| 4894833 | Surface emitting lasers with combined output Surface emitting lasers are laterally aligned and coupled together and also have their light output signals combined. This results in greater phase and frequency coherency and narrower and reduced amplitude sidelobes. Preferably, not more than two lasers ... | 01/16/1990 |
| 4894701 | Semiconductor device detector and method of forming same A semiconductor device and method of making the device in which portions of the device may be completed prior to forming the detector region. The device comprises a substrate, a first insulating layer over the substrate, a first level semiconductor layer ... | 01/16/1990 |
| 4891092 | Method for making a silicon-on-insulator substrate A mask of insulating material is formed on the major surface of a semiconductor wafer, the mask including apertures to the wafer surface. A layer of monocrystalline silicon is then formed through the apertures and over the mask. The silicon within each ap... | 01/02/1990 |
| 4872176 | Device and method for monitoring a light-emitting device A light emitting device which has a substrate and a cavity region overlying the substrate. The cavity region has a grating region overlying exposed portions of the surface formed of a first grating region having a first period and a second grating region ... | 10/03/1989 |
| 4872141 | Radiation hard memory cell having monocrystalline and non-monocrystalline inverters A radiation hard memory cell comprises on an insulating substrate a low output impedance inverter made of a monocrystalline semiconductor and a high output impedance inverter made of a non-crystalline semiconductor in order to save space. The semiconducto... | 10/03/1989 |
| 4872039 | Buried lateral diode and method for making same A diode in a semiconductor body has two laterally adjacent regions. Each region has buried portions. The first and second regions are doped with opposite conductivity type dopants. A buried P-N junction exists where the buried portions meet. Since the jun... | 10/03/1989 |
| 4872014 | Object identification system and method utilizing radiometry The totally passive object identification system and method involves the use of a radiometer to produce a signal corresponding to the radiation pattern generated by an object of interest in the frequency band to which the radiometer is sensitive, and invo... | 10/03/1989 |
