Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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 |
| 6101678 | Adjustable handle for a manually movable vehicle A handle for a manually movable vehicle or other article, such as a stroller, is infinitely adjustable to enable the person or persons imparting motion to the vehicle to achieve the greatest leverage and/or comfort. A height-adjustment assembly is dispose... | 08/15/2000 |
| 5988165 | Apparatus and method for forming oxygen-enriched gas and compression thereof for high-pressure mobile storage utilization An oxygen concentrator is utilized in combination with a compressor to provide a highly enriched and compressed oxygen gas in a mobile container such as a gas cylinder. The combination and method of production provides for the facile preparation of an enr... | 11/23/1999 |
| 5538225 | Landing gear for semitrailers A landing gear for semitrailers includes a two-speed single reduction gear assembly having fewer, smaller, and simpler parts, resulting in a compact single reduction gear assembly and cost efficient landing gear unit with a unique clutch-shifting mechanis... | 07/23/1996 |
| 5529573 | Pneumatic fluid actuated continuous passive motion device A continuous passive motion device comprises a leg support frame actuated by alternately, pneumatically inflating and deflating a bladder assembly. The assembly includes a series of interconnected bladders associated with a pump and a three-way solenoid v... | 06/25/1996 |
| 5523273 | Printing process A process for printing substrates with sublimation dyes comprises coating the substrate with successive polymeric coatings, the first of which include inorganic filler particles contained in a binder polymer that functions as a barrier to the dyes, preven... | 06/04/1996 |
| 5502129 | Triorganotin lithium, process to prepare same and anionic polymerization initiated therewith Solutions of triorganotin lithium are described having low residual concentrations (preferably less than 2,000 ppm) of halide. These are produced by a two-step process. Triorganotin halide is reacted with lithium to produce hexaorgano ditin and a precipit... | 03/26/1996 |
| 5498151 | Mixing head for molding machine A mixing head for a molding machine includes a mixing chamber into which reaction materials are injected from nozzles communicating therewith, toward a closed end of the chamber and at acute angles with respect to the longitudinal axis of the chamber, the... | 03/12/1996 |
| 5496321 | Rod anchor seat having a sliding interlocking rod connector A spinal implant assembly is provided having a top loading anchor which is fixed to a spinal member by means of a hook or screw. The anchor includes a seat having a channel to receive a stabilizer rod and a sliding interconnecting closure member which sli... | 03/05/1996 |
| 5491200 | Polycaprolactam molecular composites Polyimides serve as reinforcing rigid-backbone segments in nylon 6 copolymers. In a first embodiment, the copolymers are prepared from polyimides containing acylated caprolactam moieties pendant therefrom which provide sites for polycaprolactam grafts. In... | 02/13/1996 |
| 5474555 | Spinal implant system An apparatus is provided for the internal fixation of the spine. The apparatus comprises an assembly having at least two anchors and an elongated stabilizer. The anchors each have means to hold the anchor to the bone, and include receiving means which rec... | 12/12/1995 |
| 5466237 | Variable locking stabilizer anchor seat and screw A bone interface anchor is provided for use with a stabilizer rod for the internal fixation of a spine. The anchor has a seat which accommodates the stabilizer rod and which receives a bone screw for the fixation of the seat to the bone. A compression mem... | 11/14/1995 |
| 5453069 | Working roller with variable deflection control A working roller for applying pressure to a web of material interposed between the working roller and an opposing working surface includes a generally tubular roll-shell with bearings at each end thereof, a pair of stationary journals for supporting the r... | 09/26/1995 |
| 5443532 | Apparatus for enhancing sexual intimacy An apparatus for facilitating sexual intercourse between a female partner lying in an inclined supine position and a male partner in a standing position includes a platform mounted on a frame, such that the platform is inclined at an angle and situated at... | 08/22/1995 |
| 5444129 | Styrene type monomers containing substituents thereon, e.g. urea, and polymers and copolymers thereof A plurality of substituted styrene monomers, for example, urea substituted, is disclosed as well as polymers and copolymers made therefrom. Various thermoset plastic components can be reacted with the monomers, polymers, or copolymers of these substituted... | 08/22/1995 |
| 5438324 | Gas removal apparatus An apparatus for exhausting contaminant-laden air from a building area includes a monitoring device for determining when a contaminant level has exceeded a preselected value and which provides an output signal when the contaminant level has exceeded said ... | 08/01/1995 |
| 5437929 | Germanium phthalocyanine films A process for preparing film structures comprising phthalocyanine oligomers having metal coordinating atoms in adjacent rings connected along a central axis through oxygen atoms. The ligands on the outermost rings of the structures are hydrophilic. The pr... | 08/01/1995 |
| 5436280 | Bi(phosphine) photoinitiators and chain transfer agents Vinyl monomers are polymerized in the presence of bi(phosphine oxides) and bi(phosphine sulfides) which can function as photoinitiators and chain transfer agents in the polymerization of vinyl monomers. The incorporation of such organo-phosphorous compoun... | 07/25/1995 |
| 5435222 | Single trigger minor third attachment short reach slide trombone A slide trombone is provided which has an activatable attachment which lengthens the basic windpath of the instrument. The attachment is activated to lower the basic pitch of the instrument by a minor third. The instrument further has a reach (i.e., the d... | 07/25/1995 |
| 5433340 | Vending device A device for vending articles includes a stack of separator panels, each of which supports a product package, positioned in a storage bin. The bin has separator panel support tabs extending into the bottom thereof, and a pivot plate containing a panel-dis... | 07/18/1995 |
| 5427944 | Bioremediation of polycyclic aromatic hydrocarbon-contaminated soil A mixed bacteria culture for biodegrading polycyclic aromatic hydrocarbon contaminants includes Achromobacter sp. and Mycobacterium sp. which have been grown together and gradually acclimated to utilize polycyclic aromatic hydrocarbons as a primary food s... | 06/27/1995 |
| 5428332 | Magnetized material having enhanced magnetic pull strength and process and apparatus for the multipolor magnetization of the material A process and apparatus for permitting the magnetization of flexible hard magnetic materials in the form of sheets or strips, such as magnetic rubber, wherein opposing arrays formed from alternating magnetic disks and flux conducting elements are use in s... | 06/27/1995 |
| 5417453 | Lightweight flatbed trailer A lightweight structure for a flatbed trailer having a cellular stiffening structure formed from a plurality of vertically arranged partitions which form a multiplicity of polygonal cells is disclosed. The cellular structure has the advantage of providing... | 05/23/1995 |
| 5417643 | Continuous passive motion exercise device A continuous, passive motion device includes a chair to which a motivator assembly is attached for exercising the arm and shoulder of a patient seated therein. The assembly has two interconnected drive units, one of which provides elevation of the arm and... | 05/23/1995 |
| 5405926 | Polymer compositions and products made therefrom having nonlinear optical properties; methods for their synthesis, and for the production of the products This invention provides novel polyethers and polycarbonates which exhibit nonlinear optical response, and which have utility as a transparent optical component in optical light switch and high modulator devices. These polyethers and polycarbonates are the poly... | 04/11/1995 |
| 5401825 | Styrene type monomers containing substituents thereon, e.g. urea, and polymers and copolymers thereof A plurality of substituted styrene monomers, for example, urea substituted, is disclosed as well as polymers and copolymers made therefrom. Various thermoset plastic components can be reacted with the monomers, polymers, or copolymers of these substituted... | 03/28/1995 |
| 5386055 | Depolymerization process A process for depolymerizing polymers by selective, partial oxidation at supercritical or near supercritical conditions for water and wherein supercritical water or water near supercritical conditions is used as a solvent and reforming agent, is used to p... | 01/31/1995 |
| 5383919 | Thermal therapy pad A device is provided to enable simultaneous application of continuous passive motion therapy and thermal therapy. The device specifically provides an improved fluid transfer pad having a first membrane in a sealed cooperation with a second membrane to for... | 01/24/1995 |
| 5378420 | Process for preparing aromatic polyimide fibers A process for preparing polyimide fibers involves the preparation of a polymer in p-chlorophenol from reactants comprising 2,2'-dimethyl-4,4'-diaminobiphenyl and a tetracarboxylic anhydride. Following its preparation, the polyimide fibers can be spun dire... | 01/03/1995 |
| 5376744 | Carbocationic polymerizations in supercritical CO2 A process is disclosed for carbocationically polymerizing monomers having one or more carbon-carbon double bonds in a medium primarily of carbon dioxide at or above 31.1° C. and at or above 73 bars pressure. The supercritical carbon dioxide can replace t... | 12/27/1994 |
| 5376738 | Polymeric networks of polysiloxane with increased modulus Disclosed is a method for making polyorganosiloxane networks (preferably polydimethylsiloxane) with controlled heterogeneity of the molecular weight between crosslinks. Low molecular weight functionally terminated polyorganosiloxanes are reacted with a po... | 12/27/1994 |
| 5376712 | High impact strength polyamides An impact modified polyamide composition includes a polyamide continuous phase and a rubbery polymer component which is uniformly distributed throughout the polyamide continuous phase in the form of discrete particles, with the rubber polymer component ha... | 12/27/1994 |
| 5376462 | Thixoformable layered materials and articles made from them A thixoformable material and a method for forming it are provided in which the material comprises a series of sequentially deposited layers of substantially metallic material, at least some of the layers having different properties. The layers may be of d... | 12/27/1994 |
| 5375404 | Wide rope with reduced internal contact stresses A stranded product is formed from a central wire and a plurality of wires helically wound around the central wire, wherein each of the wires helically wound around the central wire has a small longitudinal groove which increases the area of contact betwee... | 12/27/1994 |
| 5375499 | Single trigger perfect fifth slide bass trombone A slide trombone is provided which has an attachment that is activated by a single thumb trigger to lower the basic pitch of the trombone by a perfect fifth. This attachment configuration permits the player to play all the chromatic tones between the teno... | 12/27/1994 |
| 5365823 | In-line double attachment slide trombone A slide trombone is provided having a complete chromatic range extending from the tenor range to the pedal notes of the basic B.music-flat. windpath. The trombone of the present invention includes two trigger activated attachments which are "in... | 11/22/1994 |
| 5360431 | Transpedicular screw system and method of use An apparatus is provided for the internal fixation of the spine. The apparatus comprises two sets of implants (8) each consisting of a rod (18) and a plurality of vertebral anchors (16). The rod (18) is secured to the vertebral elements by the vertebral a... | 11/01/1994 |
| 5356248 | Boiler tube bank repair A method for repairing boiler tube walls by cutting out and replacing a worn or damaged section thereof involves the use of a power tool having a rotary milling head specially adapted to remove membrane material from between tube ends which are exposed wh... | 10/18/1994 |
| 5354812 | Ternary alloys of poly(vinyl chloride) with high heat distortion temperatures Ternary alloys of PVC/CPVC/alloying polymers are disclosed which make use of the unexpected results of interactions between alloying polymers and CPVC and PVC, interactions which result in higher heat distortion temperatures than predictable by linear add... | 10/11/1994 |
| 5347041 | Molecular composites Monomers containing two diacetylene segments each of which is connected on one end through a spacer segment to a central mesogen segment, and on the other end to an additional spacer segment, are topochemically polymerized in a molecularly ordered phase t... | 09/13/1994 |
| 5345705 | Lightweight, three-dimensional sign A durable, lightweight sign or display device having a desired three-dimensional, contoured surface and a self-sticking backing to facilitate easy mounting is disclosed. The sign has a rigid plastic display sheet which is formed into the desired three-dim... | 09/13/1994 |
