William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8153431 | Compositions and methods for making mutations in cell lines and animals The present invention is directed generally to reduction or inactivation of gene function or gene expression in cells in vitro and in multicellular organisms. The invention encompasses methods for mutating cells using a combination of mutagens, particularly wherein ... | 04/10/2012 |
| 7430682 | Processing image data from multiple sources Interleaving multiple logical data streams into one physical data stream reduces overhead required to process the multiple logical data streams. Multiple arrays of data values are interleaved into a combined array of data that simulates a frame of data for input to ... | 09/30/2008 |
| D575844 | Housing for a water treatment unit | 08/26/2008 |
| D571094 | Shoe upper | 06/17/2008 |
| 7373949 | Fluid treatment system A control valve for a water treatment system which includes a turbine (110) rotatably mounted within a water receiving chamber. A nozzle assembly (122) defines first and second fluid paths, one of the flow paths may include a fluid pressure response va... | 05/20/2008 |
| 7334600 | Priming apparatus for a centrifugal pump A vacuum assisted priming system for a fluid pump including a housing defining a hopper that communicates with a pump inlet. The housing mounts a first port that communicates with the source of vacuum and a second port that communicates with atmosphere. A check valv... | 02/26/2008 |
| 7331736 | Metal cutting tool A cutting tool assembly (14) including a tool holder (20) having a removeable clamp (20a). A cutting insert support blade member (16) is removably held in the tool holder by the clamp (20a). The cutting insert support... | 02/19/2008 |
| 7316774 | Fluid treatment system A reverse osmosis water filtration system has a control housing that contains control components for the filtration system. The control housing may include control components for a membrane flushing system and/or feed water pressurization system for a permeate stora... | 01/08/2008 |
| D558802 | Tool holder | 01/01/2008 |
| 7275761 | Air bag module with locking member for locking the position of a vent member A vehicle occupant protection apparatus (800) includes an inflatable occupant protection device (802) and a vent opening (876) through which inflation fluid may flow. The vehicle occupant protection apparatus (800) also includes a retaine... | 10/02/2007 |
| D550730 | Cutting insert support/clamp | 09/11/2007 |
| 7261819 | Water treatment method A water treatment system for removing hard ions from source water. The water treatment system is of the type that includes a pair of ion-exchange water softener tanks connectable to a source of pressurized water and with a water system to supply softened water to th... | 08/28/2007 |
| 7255155 | Heat exchanger tube with integral restricting and turbulating structure A heat exchanger tube having an integral restricting and turbulating structure consisting of dimples formed by confronting indentations pressed into the sides of the heat exchanger tube. The dimples are comprised of indentations disposed in pairs which extend into t... | 08/14/2007 |
| 7221503 | Fast multi-line laser confocal scanning microscope According to a first embodiment the invention provides, for achieving fast multi-wavelength scanning in an acousto-optical deflector based confocal scanning microscope, dynamically adjusting an optical path of said an acousto-optical deflector based confocal microsc... | 05/22/2007 |
| 7204423 | Bar code signal processing A low pass filter that approximates a Gaussian transfer function filters the analog bar code signal prior to digitization is used to smooth the bar code signal. The Gaussian filter has a transfer function that compensates for beam distortion close in to the bar code... | 04/17/2007 |
| 7204424 | Retro-reflective scanner having exit window with positive optical power A portable electo-optical scanner for reading a target bar code having a plurality of bar code elements. The portable scanner includes: a housing supporting a scanning module and an exit window. The scanning module scans the target bar code with a scanning beam and ... | 04/17/2007 |
| 7204782 | Axle assembly An axle assembly including a housing, a tire supporting hub mounted for rotation with respect to the housing, a drive axle and a planetary unit for coupling the drive axle to the tire supporting hub. The planetary unit includes a sun gear, at least one planet gear a... | 04/17/2007 |
| 7201540 | Construction process for composite pile foundation A construction process for the composite pile foundation which consists of the expanded belled base and the pile shaft, the construction process comprising the steps of: a) Aligning the pile tip at the pile location and place the casing at the top of the pile tip; b... | 04/10/2007 |
| D538890 | Housing for a water treatment system control valve | 03/20/2007 |
| D538348 | Clipboard | 03/13/2007 |
| D537854 | Cutting insert | 03/06/2007 |
| 7182858 | Multiple barrier filter apparatus A filter apparatus is provided which includes a first filter membrane element (40a), and a second bacterial filter membrane element. The first viral filter element (40a) is capable of treating water at a first second flow rate and is adap... | 02/27/2007 |
| 7171882 | Knife-like cutting die A knife-like die for cutting a thermoformed plastic article from a sheet of thermoformable plastic. The die includes a die build up plate that is mounted to a first platen and a striker plate that is mounted to a second platen. The die further includes a die board h... | 02/06/2007 |
| D535312 | Cutting insert | 01/16/2007 |
| 7156614 | Centrifugal pump with multiple inlets A centrifugal pump assembly that includes an inlet housing that defines a inlet chamber and at least one inlet port in fluid communication with the inlet chamber. A volute forming part of the assembly defines an outlet port. An impeller is mounted for rotation at le... | 01/02/2007 |