William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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 |
| 6862993 | Shell for bullets of automatic or semiautomatic firearms with intertial closure A shell for bullets of automatic or semiautomatic firearms with inertial closure, comprising a hollow cylindrical body which is closed, at one of its axial ends, by a head and is adapted to accommodate a bullet at the opposite axial end, the head being centrally pro... | 03/08/2005 |
| 7104473 | Pull-out kitchen sprayer A pull-out kitchen sprayer, comprising a central body that is accommodated within an outer enclosure whose shape is such as to require assembly with a particular orientation, the central body comprising a switching device with a slider and a rod provided with a flow... | 09/12/2006 |
| 7065989 | Sinker selection device in a circular knitting machine A sinker selection device in a circular knitting machine, comprising for each radial slot of the sinker ring in which sinkers are accommodated, a selector facing the end of the corresponding radial slot directed away from the axis of the sinker ring, the selector be... | 06/27/2006 |
| 7044176 | Device for controlled activation of the pressurized supply of air for inflating tires in machines for tire dealers A device for controlled activation of the pressurized supply of air for inflating tires in machines for tire dealers comprising air feeders, at least one pair of regulators for air pressure regulation to two predefined extreme values, a first regulator to a minimum ... | 05/16/2006 |
| 7032414 | Thread gripping device, particularly for gripping elastic threads having a small cross-section, in circular knitting machines for hosiery or the like A thread gripping device, for gripping elastic thin thread, in a circular knitting machines, having a supporting element that supports thread guides proximate to a drop or feed, above the needle cylinder and proximate to the needle work area, and bearing at least on... | 04/25/2006 |
| D518873 | Spray gun | 04/11/2006 |
| 7023692 | Multifunctional electronic palmtop computer A multifunctional electronic palmtop computer comprising, in a single box-like body, a keyboard (14), a display (15), a CPU, working storage and mass storage, a printer and a PCMCIA card interface (23), further comprising a protective cover (... | 04/04/2006 |
| 6996876 | Elastic hinge for eyeglasses An elastic hinge for eyeglasses, comprising an elongated box-like body provided with an open receptacle inside which a traction elastic element and a first hinge articulation element associated with the elastic element are inserted with the first hinge articulation ... | 02/14/2006 |
| 6997964 | Diesel engine fuel in microemulsion form and method for preparing it A fuel, particularly for Diesel engines, in microemulsion form, comprising a liquid fuel, an emulsifier and an emulsive agent, the emulsive agent having an HLB value higher than 9. The invention also relates to a method for preparing a fuel, particularly for Diesel ... | 02/14/2006 |
| D514974 | Middle-case for a watch | 02/14/2006 |
| 6986316 | Device for precise placement of the toe of a hosiery item during automated insertion thereof in the conveyor of a sewing machine for closing the toe A device for precise placement of the toe of a hosiery item during automated insertion in the conveyor of a sewing machine for closing the toe, composed of two laminas arranged side by side on a substantially horizontal plane so as to form therebetween a passage for... | 01/17/2006 |
| 6983511 | Multipurpose tool for cleaning machines A multipurpose tool for cleaning machines, having a body that is interchangeably associable with a cleaning machine provided with an electric motor; the body is movable on wheels and a front advancement part thereof is arranged transversely to a main direction of mo... | 01/10/2006 |
| 6979154 | Four-sided insert for milling cutters with negative radial angle of the cutting edges for three-dimensional milling from the solid A four-sided insert for milling cutters with negative radial angle of the cutting edges for three-dimensional milling from a solid, which has an upper face, or rake face, that is delimited by four sides that constitute the cutting edges of the insert. The four sides... | 12/27/2005 |
| D513021 | Welder | 12/20/2005 |
| 6972269 | Net-like structure particularly for geotechnical uses A net-like structure particularly for geotechnical applications which comprises a first and a second layer which are mutually spaced and joined one another by spacers which are co-extruded together with the layers. At least one of the layers comprises at least one s... | 12/06/2005 |
| 6971546 | Dispenser of single-use portions of preparations for beverages, particularly coffee or the like A dispenser of single-use portions of preparations for beverages, comprising a structure that supports at least one storage assembly for single-use portions provided with a discharge outlet for the discharge of the portions, at least one distribution assembly for th... | 12/06/2005 |
| 6959722 | Device for adjusting the degree of vacuum in an apparatus for collecting substances by suction A device for adjusting the degree of vacuum in an apparatus for collecting substances by suction, comprising a valve that is provided with an air flow port connected to the atmosphere at one end and to a chamber at the other end, the chamber being connected to a sou... | 11/01/2005 |
| 6959504 | Emptying unit for recovering bottom residue, particularly in drying filters, drying units, and the like An emptying unit for recovering bottom residue, particularly in drying filters, drying units and the like, comprising, inside a container for treating and containing dried product, fluid introducing elements for moving the bottom residue of the dried product. A disc... | 11/01/2005 |
| 6959666 | Corner joint particularly for modular cages A corner joint particularly for modular cages, which is monolithic and has a substantially L-shaped body that comprises abutments inside the corner region, the transverse cross-sections of its arms being substantially H-shaped. Two channels with curled-in edges for ... | 11/01/2005 |
| 6955362 | Binding for coupling a shoe to a snowboard and the like A binding for coupling a shoe to a snowboard and the like, comprising a base plate that can be fixed to a snowboard and the like and supports a front band, a rear band and a rear spoiler, fastenable onto a shoe, an interconnection being provided for connecting the s... | 10/18/2005 |
| 6955779 | Method for the continuous production of expanded plastic material for forming panels and the like, and apparatus for carrying out the method A method for the continuous production of expanded plastic material for forming panels and the like, in which during the pouring step, at least one reaction component and a mixture of the remaining components are introduced at high pressure in a pouring channel, by ... | 10/18/2005 |
| 6953269 | Lighting unit with discharge lamps, particularly for spotlights and the like A lighting unit with discharge lamps, particularly for spotlights and the like, including a discharge lamp inside a containment enclosure and ventilation elements for cooling the lamp, a control unit that drives a lamp power supply to supply variable power levels to... | 10/11/2005 |
| 6948519 | Device for regulating the flow of gas toward user equipment A device for regulating a flow of gas toward user equipment, which comprises a first regulation stage and a second regulation stage arranged downstream in a direction of flow of the gas to be controlled, further comprising a flow limiter interposed between the first... | 09/27/2005 |
| 6945002 | Reinforcement for prefabricated concrete panels with improved bonding to concrete A reinforcement for prefabricated concrete panels with improved bonding with concrete, which comprises profiles to be embedded in a concrete body of a panel. At least some of the profiles have perforations and undulations which are suitable to increase the bonding b... | 09/20/2005 |
| 6943130 | Method for producing a fabric-elastomer sandwich and sandwich obtained thereby A method for producing a fabric-elastomer sandwich, consisting in providing a fabric with at least minute gaps between its fibers, in placing the fabric on a mold having at least resting portions for the fabric and at least regions which are recessed with respect to... | 09/13/2005 |
| 6942409 | Bicycle chain cleaner fitted on a spray can of cleaning and lubricating solution A bicycle chain cleaner fitted on a spray can of cleaning and lubricating solution, comprising: a lower half-shell and an upper half-shell, which are provided centrally with a flat and elongated tray, respectively for collection and for covering the region where a s... | 09/13/2005 |
| 6938348 | Tool device for rotary knives A tool device for rotary knives of the type that comprises a handle associated with a tool supporting assembly and an actuation for the rotary actuation of the tool with respect to the tool supporting assembly, the tool comprising a substantially tubular coupling bo... | 09/06/2005 |
| 6931959 | Train housing for pseudo-planetary kinematic transmission A composite train housing for pseudo-planetary kinematic transmission, which comprises three components namely two external ones fixed to a central one, axial posts being formed between the components. ... | 08/23/2005 |
| 6931843 | Exhaust unit for engines particularly for high-performance vehicles A plurality of pipes adapted to be jointed to the exhaust ports of one line of an engine are joined together into a manifold comprising an equal number of pipe stubs, each receiving one of said pipes. The pipe stubs lead to a box from which extends a conduit that is... | 08/23/2005 |
| 6930237 | Device for converting solar radiation into electric power A device for converting solar radiation into electric power, constituted by a substantially vertically elongated body from which multiple supporting arms for one or more modules constituted by multiple photovoltaic cells protrude in an upward region. The body is hol... | 08/16/2005 |
| 6922873 | Sprung hinge for closing compartment elements and the like A sprung hinge for elements for closing compartments and the like, comprising a first articulated quadrilateral and a second articulated quadrilateral that are respectively associable with an element for closing a compartment or the like and with a structure that is... | 08/02/2005 |
| 6923032 | Forming tool movement unit, particularly for manifold closing machines A forming tool movement unit, particularly for manifold closing machines, comprising a rotating head supporting forming tools slidable in mutually opposite radial directions with coordinated movements, a supporting frame on which a supporting element is slidable in ... | 08/02/2005 |
| 6920768 | Thread gripping device in circular knitting machines for hosiery or the like A device for gripping thread in circular hosiery knitting machines comprising a supporting element fixable to the structure of the machine supporting the thread guides proximate to a drop or feed, above the needle cylinder and proximate to the needle work area, that... | 07/26/2005 |
| 6908600 | Method for obtaining pigments for ceramic and glass, and pigments obtained thereby A method for obtaining pigments for ceramic and glass, particularly for substrates and coatings, including a step of adding a solution of an iron salt to at least one silicon addition agent including silica in gel form. ... | 06/21/2005 |
| D505270 | Brush handle | 05/24/2005 |
| 6890129 | Dried product discharge system A system for discharging dried product, particularly for drying filters, drying units and the like, comprising, on a container for treating and containing a dried product, a discharge hole that is controlled by a discharge valve, interposed on a pneumatic circuit su... | 05/10/2005 |
| 6877448 | Sewing method and apparatus for closing an axial end of tubular article A sewing method and apparatus, for closing the axial end of a tubular article, such as a hosiery toe, consisting in moving the article along a guiding path, formed by two adjacent laminas faced by a sewing head, in two opposite directions so as to make the article a... | 04/12/2005 |
| D503583 | Range | 04/05/2005 |
| 6860049 | Key holder pendant A key holder pendant, constituted by a head which is connected, by means of connecting elements, to rings which are adapted to hold keys, comprising a bent rod-like element whose mutually opposite ends form teeth which can be detachably engaged in seats provided in ... | 03/01/2005 |