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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 6634389 | Multi-layer fuel and vapor tube A layered tubing for use in a motor vehicle composed of a thick outer tubing having an inner and an outer face, the outer tubing made of an extrudable thermoplastic such as a polyamide like Nylon 12; a thin intermediate bonding layer bonded to the inner f... | 10/21/2003 |
| 6378562 | Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids An elongated multi-layer tubing is disclosed for connection to a motor vehicle system to handle fluids containing hydrocarbons. The tubing includes a first layer disposed radially innermost and having an inner surface capable of prolonged exposure to a fl... | 04/30/2002 |
| 6327771 | Method of forming a flared-end pipe with a reduced resistance bead seal and method of use A reduced resistance bead seal is integrally formed on a mounting surface of two matingly engageable members to form a leak-free seal between the two members despite any eccentricity or angular variances between the two members. In one embodiment, the red... | 12/11/2001 |
| 6321795 | Multi-layer fuel and vapor tube A layered tubing for use in a motor vehicle composed of a thick outer tubing having an inner and an outer face, the outer tubing made of an extrudable thermoplastic such as a polyamide like Nylon 12; a thin intermediate bonding layer bonded to the inner f... | 11/27/2001 |
| 6240219 | Apparatus and method for providing optical sensors with super resolution An optical sensor is disclosed of the type typically including an optical system for focusing light onto a focal plane. The optical system having a predetermined Numerical aperture which provides a corresponding level of spatial resolution. The optical se... | 05/29/2001 |
| 6170534 | Multi-layer fuel and vapor tube A layered tubing for use in a motor vehicle composed of an outer layer having an inner and an outer face, the outer layer made of an extrudable thermoplastic; an intermediate layer connected with the inner face of the outer layer, the intermediate layer c... | 01/09/2001 |
| 6146229 | Cathode structure for reduced emission and robust handling properties A photocathode device for use in an image intensifier, fabricated with a photoemissive semiconductor wafer having an active cathode layer which includes a central region of a first predetermined height surrounded by a peripheral region of a second predete... | 11/14/2000 |
| 6112767 | Chromatography valve assembly A unitarily formed diverter valve assembly for use in liquid chromatography. The valve assembly comprises a plurality of inlet and outlet ports, diverter valve systems, chambers, and a tortuous network of passageways all of which are arranged to accommoda... | 09/05/2000 |
| 6069445 | Having an electrical contact on an emission surface thereof A photocathode device for use in an image intensifier of a night vision device, the device having a faceplate fabricated from an optically transparent material and a photoemissive semiconductor wafer bonded to the faceplate. The photoemissive wafer includ... | 05/30/2000 |
| 5996642 | Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids An elongated multi-layer tubing is disclosed for connection to a motor vehicle system to handle fluids containing hydrocarbons. The tubing includes a first layer disposed radially innermost and having an inner surface capable of prolonged exposure to a fl... | 12/07/1999 |
| 5965935 | Low loss ridged microstrip line for monolithic microwave integrated circuit (MMIC) applications A microstrip line device is disclosed of the type which typically includes a strip conductor disposed on the top of a substrate. The device further includes a layer of dielectric material disposed between the strip conductor and the substrate for reducing... | 10/12/1999 |
| 5930665 | Wide frequency band transition between via RF transmission lines and planar transmission lines A multi-layer circuit structure including a plurality of substrate layers. At least one planar transmission line, including microstrip, stripline, or coplanar line, disposed on the plurality of substrate layers. A via transmission line connected to that a... | 07/27/1999 |
| 5906223 | Chromatography valve assembly A unitarily formed diverter valve assembly for use in liquid chromatography. The valve assembly comprises a plurality of inlet and outlet ports, diverter valve systems, chambers, and a tortuous network of passageways all of which are arranged to accommoda... | 05/25/1999 |
| 5884671 | Multi-layer fuel and vapor tube A layered tubing for use in a motor vehicle composed of an outer layer having an inner and an outer face, the outer layer made of an extrudable thermoplastic such as a polyamide such as Nylon 6; a thin intermediate layer uniformly connected with the inner... | 03/23/1999 |
| 5884672 | Multi-layer fuel and vapor tube A layered tubing for use in a motor vehicle composed of a thick outer layer having an inner and an outer face, the outer tubing made of an extrudable thermoplastic such as a polyamide like Nylon 12; a thin intermediate layer uniformly connected with the i... | 03/23/1999 |
| 5872847 | Using trusted associations to establish trust in a computer network A method is disclosed for establishing trusted communications with associations for communications between users on an Internet Protocol based computer network. The method entails the first user determining the Internet Protocol (IP) address of a second u... | 02/16/1999 |
| 5852867 | Method of manufacturing a steering column stalk switch apparatus A method of manufacturing a steering column stalk switch apparatus includes the steps of fixedly engaging a hub attached to an elongated shaft to one end of a hollow housing have apertures formed at opposite ends, movably mounting a button in one of the a... | 12/29/1998 |
| 5832228 | System and method for providing multi-level security in computer devices utilized with non-secure networks A multi-level network security system is disclosed for a computer host device coupled to at least one computer network. The system including a secure network interface Unit (SNIU) contained within a communications stack of the computer device that operate... | 11/03/1998 |
| 5828832 | Mixed enclave operation in a computer network with multi-level network security A method is disclosed for mixed enclave operation of a computer network with users employing a multi-level network security interface and users without any network security interface. Either the network security user selects or the network security interf... | 10/27/1998 |
| 5818867 | QPSK/QBL-MSK waveform enhancement A modulator device is disclosed for a spread spectrum communication system which generates a modulated signal from incoming data. The device includes a QPSK portion for separating the incoming data into two data channels and for further spreading the two ... | 10/06/1998 |
| 5807126 | Low profile connector system A connector system includes a receptacle that is small and assures precise alignment of mating contacts and terminals. The receptacle includes a circuit board (32) with a laterally-extending row of traces (42), and a receptacle housing (36) with a top wal... | 09/15/1998 |
| 5805043 | High Q compact inductors for monolithic integrated circuit applications A monolithic inductor device is disclosed which typically includes a substrate. The improvement includes a layer of dielectric material disposed over the substrate. A first inductor pattern disposed on the substrate and a second inductor pattern disposed ... | 09/08/1998 |
| 5802178 | Stand alone device for providing security within computer networks A multi-level security device is disclosed for providing security between a user and at least one computer network, wherein the user is selected from the group consisting of a host computer and at least a second network. A secure network interface Unit (S... | 09/01/1998 |
| 5789759 | Cathode structure for reduced emission and robust handling properties A photocathode device for use in an image intensifier, fabricated with a photoemissive semiconductor wafer having an active cathode layer which includes a central region of a first predetermined height surrounded by a peripheral region of a second predete... | 08/04/1998 |
| 5767721 | Switch circuit for FET devices having negative threshold voltages which utilize a positive voltage only A switch circuit is disclosed including a first FET device coupled in series with an input terminal and an output terminal. A second FET device coupled to the first device in a shunt configuration. The FET devices operative in a first mode to enable elect... | 06/16/1998 |
| 5763896 | Reduced dark current cathode structures for infrared detection A separate absorption thermal conduction band infrared photocathode fabricated with an engineered material system having energy band gaps specifically selected to provide an energy barrier that is selectively tuned to the momentum and energy of the photog... | 06/09/1998 |
| 5757488 | Optical frequency stability controller The present invention is a method for calibrating power spectral data obtained with an interferometer based Fourier transform spectrometer which utilizes a laser based coherent radiant source as the metrology source. A radiant beam of predetermined wavele... | 05/26/1998 |
| 5757252 | Wide frequency band transition between via RF transmission lines and planar transmission lines A multi-layer circuit structure including a plurality of substrate layers. At least one planar transmission line, including microstrip, stripline, or coplanar line, disposed on the plurality of substrate layers. A via transmission line connected to that a... | 05/26/1998 |
| 5757551 | Beam splitter for an optical collimator assembly A beam splitter device is disclosed for a collimator assembly which includes a housing having optics to collimate light. The beam splitter includes a base member having a tent-like structure which includes two inclined surfaces. A mirror element is suppor... | 05/26/1998 |
| 5753968 | Low loss ridged microstrip line for monolithic microwave integrated circuit (MMIC) applications A microstrip line device is disclosed of the type which typically includes a strip conductor disposed on the top of a substrate. The device further includes a layer of dielectric material disposed between the strip conductor and the substrate for reducing... | 05/19/1998 |
| 5751246 | Accountability and theft protection via the global positioning system A system is provided which includes a GPS receiver which determines its location as defined by three spatial coordinates and an associated time reference. The system includes a control logic unit which determines whether the location of GPS receiver is ou... | 05/12/1998 |
| 5748056 | Compact 90° monolithic GaAs coupler for wireless applications A coupler device is disclosed which has an improved structure. The structure includes a substrate and, input ports and output ports disposed over the substrate. A plurality of inductors and capacitors are further included, which are arranged in a predeter... | 05/05/1998 |
| 5734189 | Low parasitic source inductance field-effect transistor device having via connections disposed along an outer periphery thereof An FET device is disclosed of the type typically fabricated on a substrate and including an active FET region, an input port, an output port, a common connection and via ground connections for coupling the common connection to a ground. The improvement in... | 03/31/1998 |
| 5712490 | Ramp cathode structures for vacuum emission A photocathode device is disclosed including an active layer, a composition ramp layer and an emission layer including an emission surface. The active layer, ramp layer and emission layer each have both a predetermined material composition and a predeterm... | 01/27/1998 |
| 5692124 | Support of limited write downs through trustworthy predictions in multilevel security of computer network communications A method is disclosed for limited write downs of data from higher security classification users to lower security classification users across computer networks, while preserving the security of classified data at the higher security classification user fr... | 11/25/1997 |
