Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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 |
| 6922021 | Microwave energized plasma lamp with solid dielectric waveguide A plasma lamp including a waveguide body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2. The body is coupled to a microwave power source which causes the body to resonate in at least one resonant ... | 07/26/2005 |
| 6737809 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one res... | 05/18/2004 |
| 6691701 | Modular solar radiation collection and distribution system A solar radiation collection and distribution system includes a solar collection system which includes a primary reflector, a secondary reflector and a planar reflector. The focal points of the primary and secondary reflectors are offset by the same numbe... | 02/17/2004 |
| 6691900 | Plug for removably resealing a material-dispensing plastic conduit and method of use A plug for removably resealing an aperture in a soft plastic dispensing conduit of a container of material. The plug includes a handle-like upper portion, and a conically tapering lower portion with contiguous scoring edges each having a leading and a tra... | 02/17/2004 |
| 6664513 | Wall-mounted mirror heated by convection and radiation A wall-mounted mirror which can be convectively and radiatively heated to prevent fogging by a sheet heater separated from the mirror interior surface by an air gap. The mirror is electrically insulated and grounded to prevent electric shock.... | 12/16/2003 |
| 6648037 | Teak board with straight-line grain and manufacturing process therefor Five processes for cutting teak wood timber so that the resulting logs have at least one straight-line grain surface and minimal surface area showing buds. Logs or thin sections thereof when aligned and glued together form boards or planks with straight-l... | 11/18/2003 |
| 6481597 | Plug assembly for removable resealing of caulking tube nozzle and method of use A plug assembly for removably resealing a caulking tube nozzle includes a plug with a handle-like upper portion and a conically tapering lower portion with contiguous scoring edges each having a leading and a trailing surface which form a sharp circumfere... | 11/19/2002 |
| 6394909 | Golf club with fixed-tension shaft A golf club having a hollow shaft whose flexibility is determined by the tension on a wire coinciding with the shaft longitudinal axis. The is attached between a fixed assembly in the handle and a fixed assembly at the shaft lower end. The upper assembly ... | 05/28/2002 |
| 6365876 | Cabinet with convectively heated exterior and interior mirrors A wall-mounted cabinet having a pivotable door with opposed exterior and interior mirrors which can be convectively and radiatively heated to prevent fogging, by a sheet heater between the two mirrors. The exterior mirror is electrically insulated, and th... | 04/02/2002 |
| 6269692 | Mass flow measuring assembly having low pressure drop and fast response time An assembly for measuring the mass flow and flow rate of gases such as are used in semiconductor fabrication processes. The assembly includes an axial flow passage, viz., a capillary tube with a bore of about 0.050 inch diameter and a wall thickness of ab... | 08/07/2001 |
| 6253570 | Traveling bag with exterior display of interior temperature A traveling bag for carrying temperature-sensitive medications such as insulin which includes a sensor monitoring the interior temperature and an exterior display showing the measured temperature. In one embodiment the bag interior includes a compartment ... | 07/03/2001 |
| 6241623 | Golf club with adjustably flexible shaft A golf club having a hollow shaft whose flexibility is altered by rotating the club handle. Change in flexibility results from change in tension on a wire coinciding with the shaft longitudinal axis. The wire is attached between a longitudinally movable a... | 06/05/2001 |
| 6138990 | Flow control valve assembly for mass flow controller A fluid valve assembly including a ball valve within a central hole in a resilient disc-shaped spring. The spring has additional openings to minimize resistance to fluid flow from inlet to outlet. Clearance between the spring and side walls of the cavity ... | 10/31/2000 |
| 6073416 | Cap for protecting wood construction member supported by elevated base A cap for protecting from rot and other deterioration the lowermost portion of a wood construction member supported by an elevated base. The cap has four lateral faces and a top face with a rectangular aperture formed by four flexible web portions which p... | 06/13/2000 |
| 5919048 | Engine block heater connector device A device for connecting an external electrical power cord to an engine block heater in an automotive vehicle. The device is permanently mounted in the vehicle grille and includes a flanged electrical inlet whose terminals are hard-wired to the heater, and... | 07/06/1999 |
| 5901525 | Elevated base for column support An elevated column base for supporting a wood column subjected to high mechanical loads and protecting the column lowermost portion from rot and other deterioration due to exposure to a tropical environment. The column base includes a stanchion, a diaphra... | 05/11/1999 |
| 5488631 | Wireless direct-sequence spread spectrum TDMA communications system A protocol for wireless direct user-to-user DSSS TDMA digital communication at a data rate of the order of one to several megabits per second in the 902-928 MHz, 2400-2483.5 MHz or 5725-5850 MHz band includes a sequence of transactions, each transaction c... | 01/30/1996 |
